What is a SIC to NAICS crosswalk?

A SIC to NAICS crosswalk is a concordance table that maps every Standard Industrial Classification (SIC) code from the 1987 system to its corresponding North American Industry Classification System (NAICS) code. The crosswalk lets analysts and data teams reconcile records that were classified under one system with newer datasets classified under the other.

Do SIC and NAICS codes convert exactly?

Often, but not always. Official concordances do contain one-to-many mappings, where a single SIC industry splits across several NAICS categories. Those splits occur at the six-digit national industry level. This table operates at the five-digit NAICS industry level, one tier above, where the split codes roll back up into their parent — so a one-to-many mapping is not visible here and no row shows one. What this table does show is the reverse: 196 NAICS codes carry more than one SIC code, up to 12. For six-digit work, use the US Census Bureau concordance directly.

Are SIC codes still used in 2026?

Yes. Although the US Census Bureau retired SIC for federal statistics in 1997, SIC codes are still widely used in financial filings, SEC EDGAR, OSHA records, the UK Companies House register, business credit databases, and legacy CRM systems. Many B2B platforms return both SIC and NAICS to support customers working across both worlds. InfobelPRO returns SIC and NACE, with this converter for mapping to NAICS.

What's the difference between NAICS and NACE?

NAICS is the North American classification system used in the United States, Canada, and Mexico. NACE is the European Union equivalent, maintained by Eurostat. The two systems share roots in the UN ISIC standard but use different code structures and hierarchies. If you need to map European to US codes, use our NACE to SIC code converter — this page focuses specifically on the SIC to NAICS crosswalk.

Where does this mapping data come from?

Each SIC industry record in the InfobelPRO classification dataset carries one corresponding NAICS code at the five-digit industry level, and this table is generated directly from that field, so the table and our SIC and NAICS pages never drift apart. It is a derivative of the US Census Bureau SIC-to-NAICS concordance, not a copy of it: it is coarser, because the Census file resolves to six digits, and it is narrower, because 63 of the 1,004 SIC industries we publish carry no NAICS code in our source. The Census concordance remains the reference for exhaustive six-digit work.

Resources

SIC to NAICS Conversion

Convert a SIC 1987 code to its NAICS 2022 equivalent, or a NAICS code back to SIC, then browse the mapping table for context. The table pairs SIC four-digit industries with NAICS at the five-digit industry level — read the coverage note below it before you rely on a mapping.

941 SIC ↔ NAICS code mappings sourced from the US Census Bureau concordance.

Crosswalk

Full SIC ↔ NAICS code table

Every row pairs a SIC 1987 industry code with its NAICS match. Filter by code or industry name, or expand the view to scan every row. Both code columns link to that code's page.

What this table covers

It maps SIC 1987 four-digit industries to NAICS 2022 at the five-digit industry level — a real tier of the NAICS hierarchy (sector, subsector, industry group, NAICS industry, national industry), one above the six-digit national industry level.
It covers 941 of the 1004 four-digit SIC industries this site publishes pages for. 63 carry no NAICS code in our source and are not listed here.
Because the NAICS side is five-digit, one SIC code never splits into several NAICS codes in this table. Those splits exist, at the six-digit national industry level, which this table does not reach. For six-digit work use the US Census Bureau concordance.
The reverse direction is shown in full: 196 NAICS codes carry more than one SIC code, up to 12. Every such row is flagged many-to-one.

941 total mappings (use "See all" to view every row)

SIC Code	SIC Description	NAICS Code	NAICS Description	Mapping
0111	Wheat	11114	Wheat Farming	one-to-one
0112	Rice	11116	Rice Farming	one-to-one
0115	Corn	11115	Corn Farming	one-to-one
0116	Soybeans	11111	Soybean Farming	one-to-one
0119	Cash Grains, Not Elsewhere Classified	11119	Other Grain Farming	one-to-one
0131	Cotton	11192	Cotton Farming	one-to-one
0132	Tobacco	11191	Tobacco Farming	one-to-one
0133	Sugarcane and Sugar Beets	11193	Sugarcane Farming	one-to-one
0134	Irish Potatoes	11219no page — parent 1121	Irish Potatoes	many-to-one2 SIC codes share this NAICS code
0139	Field Crops, Except Cash Grains, Not Elsewhere Classified	11199	All Other Crop Farming	many-to-one2 SIC codes share this NAICS code
0161	Vegetables and Melons	11219no page — parent 1121	Vegetables and Melons	many-to-one2 SIC codes share this NAICS code
0171	Berry Crops	11133	Noncitrus Fruit and Tree Nut Farming	many-to-one5 SIC codes share this NAICS code
0172	Grapes	11133	Noncitrus Fruit and Tree Nut Farming	many-to-one5 SIC codes share this NAICS code
0173	Tree Nuts	11133	Noncitrus Fruit and Tree Nut Farming	many-to-one5 SIC codes share this NAICS code
0174	Citrus Fruits	11133	Noncitrus Fruit and Tree Nut Farming	many-to-one5 SIC codes share this NAICS code
0175	Deciduous Tree Fruits	11133	Noncitrus Fruit and Tree Nut Farming	many-to-one5 SIC codes share this NAICS code
0181	Ornamental Floriculture and Nursery Products	11142	Nursery and Floriculture Production	one-to-one
0182	Food Crops Grown Under Cover	11141	Food Crops Grown Under Cover	one-to-one
0191	General Farms, Primarily Crop	11199	All Other Crop Farming	many-to-one2 SIC codes share this NAICS code
0211	Beef Cattle Feedlots	11211	Beef Cattle Ranching and Farming, including Feedlots	many-to-one2 SIC codes share this NAICS code
0212	Beef Cattle, Except Feedlots	11211	Beef Cattle Ranching and Farming, including Feedlots	many-to-one2 SIC codes share this NAICS code
0213	Hogs	11221	Hog and Pig Farming	one-to-one
0214	Sheep and Goats	11241	Sheep Farming	one-to-one
0241	Dairy Farms	11212	Dairy Cattle and Milk Production	one-to-one
0251	Broiler, Fryer, and Roaster Chickens	11232	Broilers and Other Meat-Type Chicken Production	one-to-one
0252	Chicken Eggs	11231	Chicken Egg Production	one-to-one
0253	Turkeys and Turkey Eggs	11233	Turkey Production	one-to-one
0254	Poultry Hatcheries	11234	Poultry Hatcheries	one-to-one
0259	Poultry and Eggs, Not Elsewhere Classified	11239	Other Poultry Production	one-to-one
0271	Fur-Bearing Animals and Rabbits	11291	Apiculture	one-to-one
0272	Horses and Other Equines	11292	Horses and Other Equine Production	one-to-one
0273	Animal Aquaculture	11251	Aquaculture	many-to-one2 SIC codes share this NAICS code
0291	General Farms, Primarily Livestock and Animal Specialties	11299	All Other Animal Production	one-to-one
0711	Soil Preparation Services	11511	Support Activities for Crop Production	many-to-one7 SIC codes share this NAICS code
0721	Crop Planting, Cultivating, and Protecting	11511	Support Activities for Crop Production	many-to-one7 SIC codes share this NAICS code
0722	Crop Harvesting, Primarily by Machine	11511	Support Activities for Crop Production	many-to-one7 SIC codes share this NAICS code
0723	Crop Preparation Services for Market, Except Cotton Ginning	11511	Support Activities for Crop Production	many-to-one7 SIC codes share this NAICS code
0724	Cotton Ginning	11511	Support Activities for Crop Production	many-to-one7 SIC codes share this NAICS code
0741	Veterinary Services for Livestock	54194	Veterinary Services	one-to-one
0742	Veterinary Services for Animal Specialties	81291	Pet Care (except Veterinary) Services	many-to-one2 SIC codes share this NAICS code
0751	Livestock Services, Except Veterinary	11521	Support Activities for Animal Production	one-to-one
0752	Animal Specialty Services, Except Veterinary	81291	Pet Care (except Veterinary) Services	many-to-one2 SIC codes share this NAICS code
0761	Farm Labor Contractors and Crew Leaders	11511	Support Activities for Crop Production	many-to-one7 SIC codes share this NAICS code
0762	Farm Management Services	11511	Support Activities for Crop Production	many-to-one7 SIC codes share this NAICS code
0781	Landscape Counseling and Planning	56173	Landscaping Services	many-to-one3 SIC codes share this NAICS code
0782	Lawn and Garden Services	56173	Landscaping Services	many-to-one3 SIC codes share this NAICS code
0783	Ornamental Shrub and Tree Services	56173	Landscaping Services	many-to-one3 SIC codes share this NAICS code
0811	Timber Tracts	11311	Timber Tract Operations	one-to-one
0831	Forest Nurseries and Gathering of Forest Products	11321	Forest Nurseries and Gathering of Forest Products	one-to-one
0851	Forestry Services	11531	Support Activities for Forestry	one-to-one
0912	Finfish	11411	Fishing	many-to-one3 SIC codes share this NAICS code
0913	Shellfish	11411	Fishing	many-to-one3 SIC codes share this NAICS code
0919	Miscellaneous Marine Products	11411	Fishing	many-to-one3 SIC codes share this NAICS code
0921	Fish Hatcheries and Preserves	11251	Aquaculture	many-to-one2 SIC codes share this NAICS code
0971	Hunting and Trapping, and Game Propagation	11421	Hunting and Trapping	one-to-one
1011	Iron Ores	21221	Iron Ore Mining	many-to-one4 SIC codes share this NAICS code
1021	Copper Ores	21223	Copper, Nickel, Lead, and Zinc Mining	one-to-one
1031	Lead and Zinc Ores	21222	Gold Ore and Silver Ore Mining	many-to-one2 SIC codes share this NAICS code
1041	Gold Ores	21221	Iron Ore Mining	many-to-one4 SIC codes share this NAICS code
1044	Silver Ores	21221	Iron Ore Mining	many-to-one4 SIC codes share this NAICS code
1061	Ferroalloy Ores, Except Vanadium	21221	Iron Ore Mining	many-to-one4 SIC codes share this NAICS code
1081	Metal Mining Services	21311	Support Activities for Mining	many-to-one6 SIC codes share this NAICS code
1094	Uranium-Radium-Vanadium Ores	21222	Gold Ore and Silver Ore Mining	many-to-one2 SIC codes share this NAICS code
1099	Miscellaneous Metal Ores, Not Elsewhere Classified	21229	Other Metal Ore Mining	one-to-one
1221	Bituminous Coal and Lignite Surface Mining	21211	Coal Mining	many-to-one3 SIC codes share this NAICS code
1222	Bituminous Coal Underground Mining	21211	Coal Mining	many-to-one3 SIC codes share this NAICS code
1231	Anthracite Mining	21211	Coal Mining	many-to-one3 SIC codes share this NAICS code
1241	Coal Mining Services	21311	Support Activities for Mining	many-to-one6 SIC codes share this NAICS code
1311	Crude Petroleum and Natural Gas	21111no page — parent 2111	Crude Petroleum and Natural Gas	one-to-one
1321	Natural Gas Liquids	21112	Crude Petroleum Extraction	one-to-one
1381	Drilling Oil and Gas Wells	21311	Support Activities for Mining	many-to-one6 SIC codes share this NAICS code
1382	Oil and Gas Field Exploration Services	21311	Support Activities for Mining	many-to-one6 SIC codes share this NAICS code
1389	Oil and Gas Field Services, Not Elsewhere Classified	21311	Support Activities for Mining	many-to-one6 SIC codes share this NAICS code
1411	Dimension Stone	21231	Stone Mining and Quarrying	many-to-one6 SIC codes share this NAICS code
1422	Crushed and Broken Limestone	21231	Stone Mining and Quarrying	many-to-one6 SIC codes share this NAICS code
1423	Crushed and Broken Granite	21231	Stone Mining and Quarrying	many-to-one6 SIC codes share this NAICS code
1429	Crushed and Broken Stone, Not Elsewhere Classified	21231	Stone Mining and Quarrying	many-to-one6 SIC codes share this NAICS code
1442	Construction Sand and Gravel	21231	Stone Mining and Quarrying	many-to-one6 SIC codes share this NAICS code
1446	Industrial Sand	21231	Stone Mining and Quarrying	many-to-one6 SIC codes share this NAICS code
1455	Kaolin and Ball Clay	21232	Sand, Gravel, Clay, and Ceramic and Refractory Minerals Mining and Quarrying	one-to-one
1459	Clay, Ceramic, and Refractory Minerals, Not Elsewhere Classified	21239	Other Nonmetallic Mineral Mining and Quarrying	many-to-one5 SIC codes share this NAICS code
1474	Potash, Soda, and Borate Minerals	21239	Other Nonmetallic Mineral Mining and Quarrying	many-to-one5 SIC codes share this NAICS code
1475	Phosphate Rock	21239	Other Nonmetallic Mineral Mining and Quarrying	many-to-one5 SIC codes share this NAICS code
1479	Chemical and Fertilizer Mineral Mining, Not Elsewhere Classified	21239	Other Nonmetallic Mineral Mining and Quarrying	many-to-one5 SIC codes share this NAICS code
1481	Nonmetallic Minerals Services, Except Fuels	21311	Support Activities for Mining	many-to-one6 SIC codes share this NAICS code
1499	Miscellaneous Nonmetallic Minerals, Except Fuels	21239	Other Nonmetallic Mineral Mining and Quarrying	many-to-one5 SIC codes share this NAICS code
1521	General Contractors-Single-Family Houses	23611	Residential Building Construction	many-to-one3 SIC codes share this NAICS code
1522	General Contractors-Residential Buildings, Other Than Single-Family	23611	Residential Building Construction	many-to-one3 SIC codes share this NAICS code
1531	Operative Builders	23611	Residential Building Construction	many-to-one3 SIC codes share this NAICS code
1541	General Contractors-Industrial Buildings and Warehouses	23621	Industrial Building Construction	one-to-one
1542	General Contractors-Nonresidential Buildings, Other Than Industrial Buildings and Warehouses	23622	Commercial and Institutional Building Construction	one-to-one
1611	Highway and Street Construction, Except Elevated Highways	23731	Highway, Street, and Bridge Construction	many-to-one2 SIC codes share this NAICS code
1622	Bridge, Tunnel, and Elevated Highway Construction	23731	Highway, Street, and Bridge Construction	many-to-one2 SIC codes share this NAICS code
1623	Water, Sewer, Pipeline, and Communications and Power Line Construction	23711	Water and Sewer Line and Related Structures Construction	many-to-one2 SIC codes share this NAICS code
1629	Heavy Construction, Not Elsewhere Classified	23799	All Other Heavy and Civil Engineering Construction	one-to-one
1711	Plumbing, Heating and Air-Conditioning	23822	Plumbing, Heating, and Air-Conditioning Contractors	one-to-one
1721	Painting and Paper Hanging	23832	Painting and Wall Covering Contractors	one-to-one
1731	Electrical Work	23821	Electrical Contractors and Other Wiring Installation Contractors	one-to-one
1741	Masonry, Stone Setting, and Other Stone Work	23814	Masonry Contractors	one-to-one
1751	Carpentry Work	23831	Drywall and Insulation Contractors	one-to-one
1752	Floor Laying and Other Floor Work, Not Elsewhere Classified	23833	Flooring Contractors	one-to-one
1761	Roofing, Siding, and Sheet Metal Work	23816	Roofing Contractors	one-to-one
1771	Concrete Work	23813	Framing Contractors	one-to-one
1781	Water Well Drilling	23891	Site Preparation Contractors	many-to-one3 SIC codes share this NAICS code
1791	Structural Steel Erection	23815	Glass and Glazing Contractors	one-to-one
1794	Excavation Work	23891	Site Preparation Contractors	many-to-one3 SIC codes share this NAICS code
1795	Wrecking and Demolition Work	23891	Site Preparation Contractors	many-to-one3 SIC codes share this NAICS code
1796	Installation or Erection of Building Equipment, Not Elsewhere Classified	23829	Other Building Equipment Contractors	one-to-one
1799	Special Trade Contractors, Not Elsewhere Classified	23899	All Other Specialty Trade Contractors	one-to-one
2011	Meat Packing Plants	31161	Animal Slaughtering and Processing	many-to-one4 SIC codes share this NAICS code
2013	Sausages and Other Prepared Meat Products	31161	Animal Slaughtering and Processing	many-to-one4 SIC codes share this NAICS code
2015	Poultry Slaughtering and Processing	31161	Animal Slaughtering and Processing	many-to-one4 SIC codes share this NAICS code
2021	Creamery Butter	31151	Dairy Product (except Frozen) Manufacturing	many-to-one4 SIC codes share this NAICS code
2022	Natural, Processed, and Imitation Cheese	31151	Dairy Product (except Frozen) Manufacturing	many-to-one4 SIC codes share this NAICS code
2023	Dry, Condensed, and Evaporated Dairy Products	31151	Dairy Product (except Frozen) Manufacturing	many-to-one4 SIC codes share this NAICS code
2024	Ice Cream and Frozen Desserts	31152	Ice Cream and Frozen Dessert Manufacturing	one-to-one
2026	Fluid Milk	31151	Dairy Product (except Frozen) Manufacturing	many-to-one4 SIC codes share this NAICS code
2032	Canned Specialties	31141	Frozen Food Manufacturing	many-to-one5 SIC codes share this NAICS code
2033	Canned Fruits, Vegetables, Preserves, Jams, and Jellies	31141	Frozen Food Manufacturing	many-to-one5 SIC codes share this NAICS code
2034	Dried and Dehydrated Fruits, Vegetables, and Soup Mixes	31142	Fruit and Vegetable Canning, Pickling, and Drying	one-to-one
2035	Pickled Fruits and Vegetables, Vegetable Sauces and Seasonings, and Salad Dressings	31141	Frozen Food Manufacturing	many-to-one5 SIC codes share this NAICS code
2037	Frozen Fruits, Fruit Juices, and Vegetables	31141	Frozen Food Manufacturing	many-to-one5 SIC codes share this NAICS code
2038	Frozen Specialties, Not Elsewhere Classified	31141	Frozen Food Manufacturing	many-to-one5 SIC codes share this NAICS code
2041	Flour and Other Grain Mill Products	31121	Flour Milling and Malt Manufacturing	many-to-one2 SIC codes share this NAICS code
2043	Cereal Breakfast Foods	31123	Breakfast Cereal Manufacturing	many-to-one2 SIC codes share this NAICS code
2044	Rice Milling	31121	Flour Milling and Malt Manufacturing	many-to-one2 SIC codes share this NAICS code
2046	Wet Corn Milling	31122	Starch and Vegetable Fats and Oils Manufacturing	many-to-one4 SIC codes share this NAICS code
2047	Dog and Cat Food	31111	Animal Food Manufacturing	many-to-one2 SIC codes share this NAICS code
2048	Prepared Feed and Feed Ingredients for Animals and Fowls, Except Dogs and Cats	31111	Animal Food Manufacturing	many-to-one2 SIC codes share this NAICS code
2051	Bread and Other Bakery Products, Except Cookies and Crackers	31181	Bread and Bakery Product Manufacturing	many-to-one2 SIC codes share this NAICS code
2052	Cookies and Crackers	31182	Cookie, Cracker, Pasta, and Tortilla Manufacturing	many-to-one3 SIC codes share this NAICS code
2053	Frozen Bakery Products, Except Bread	31182	Cookie, Cracker, Pasta, and Tortilla Manufacturing	many-to-one3 SIC codes share this NAICS code
2061	Cane Sugar, Except Refining	31131	Sugar Manufacturing	many-to-one3 SIC codes share this NAICS code
2062	Cane Sugar Refining	31131	Sugar Manufacturing	many-to-one3 SIC codes share this NAICS code
2063	Beet Sugar	31131	Sugar Manufacturing	many-to-one3 SIC codes share this NAICS code
2064	Candy and Other Confectionery Products	31134	Non-Chocolate Confectionery Manufacturing	many-to-one4 SIC codes share this NAICS code
2066	Chocolate and Cocoa Products	31134	Non-Chocolate Confectionery Manufacturing	many-to-one4 SIC codes share this NAICS code
2067	Chewing Gum	31134	Non-Chocolate Confectionery Manufacturing	many-to-one4 SIC codes share this NAICS code
2068	Salted and Roasted Nuts and Seeds	31134	Non-Chocolate Confectionery Manufacturing	many-to-one4 SIC codes share this NAICS code
2074	Cottonseed Oil Mills	31122	Starch and Vegetable Fats and Oils Manufacturing	many-to-one4 SIC codes share this NAICS code
2075	Soybean Oil Mills	31122	Starch and Vegetable Fats and Oils Manufacturing	many-to-one4 SIC codes share this NAICS code
2076	Vegetable Oil Mills, Except Corn, Cottonseed, and Soybean	31122	Starch and Vegetable Fats and Oils Manufacturing	many-to-one4 SIC codes share this NAICS code
2077	Animal and Marine Fats and Oils	31161	Animal Slaughtering and Processing	many-to-one4 SIC codes share this NAICS code
2079	Shortening, Table Oils, Margarine, and Other Edible Fats and Oils, Not Elsewhere Classified	31123	Breakfast Cereal Manufacturing	many-to-one2 SIC codes share this NAICS code
2082	Malt Beverages	31212	Breweries	one-to-one
2083	Malt	31213	Wineries	one-to-one
2084	Wines, Brandy, and Brandy Spirits	31214	Distilleries	many-to-one2 SIC codes share this NAICS code
2085	Distilled and Blended Liquors	31214	Distilleries	many-to-one2 SIC codes share this NAICS code
2086	Bottled and Canned Soft Drinks and Carbonated Waters	31211	Soft Drink and Ice Manufacturing	one-to-one
2087	Flavoring Extracts and Flavoring Syrups, Not Elsewhere Classified	31193	Flavoring Syrup and Concentrate Manufacturing	one-to-one
2091	Canned and Cured Fish and Seafoods	31171	Seafood Product Preparation and Packaging	many-to-one2 SIC codes share this NAICS code
2092	Prepared Fresh or Frozen Fish and Seafoods	31171	Seafood Product Preparation and Packaging	many-to-one2 SIC codes share this NAICS code
2095	Roasted Coffee	31192	Coffee and Tea Manufacturing	one-to-one
2096	Potato Chips, Corn Chips, and Similar Snacks	31191	Snack Food Manufacturing	many-to-one2 SIC codes share this NAICS code
2097	Manufactured Ice	31191	Snack Food Manufacturing	many-to-one2 SIC codes share this NAICS code
2098	Macaroni, Spaghetti, Vermicelli, and Noodles	31182	Cookie, Cracker, Pasta, and Tortilla Manufacturing	many-to-one3 SIC codes share this NAICS code
2099	Food Preparations, Not Elsewhere Classified	31199	All Other Food Manufacturing	one-to-one
2111	Cigarettes	31222no page — parent 3122	Cigarettes	many-to-one2 SIC codes share this NAICS code
2121	Cigars	31221no page — parent 3122	Cigars	one-to-one
2131	Chewing and Smoking Tobacco and Snuff	31222no page — parent 3122	Chewing and Smoking Tobacco and Snuff	many-to-one2 SIC codes share this NAICS code
2211	Broadwoven Fabric Mills, Cotton	31321	Broadwoven Fabric Mills	many-to-one3 SIC codes share this NAICS code
2221	Broadwoven Fabric Mills, Manmade Fiber and Silk	31321	Broadwoven Fabric Mills	many-to-one3 SIC codes share this NAICS code
2231	Broadwoven Fabric Mills	31311	Fiber, Yarn, and Thread Mills	many-to-one7 SIC codes share this NAICS code
2241	Narrow Fabric and Other Smallware Mills: Cotton, Wool, Silk, and Manmade Fiber	31321	Broadwoven Fabric Mills	many-to-one3 SIC codes share this NAICS code
2251	Women's Full-Length and Knee-Length Hosiery, Except Socks	31511	Hosiery and Sock Mills	many-to-one6 SIC codes share this NAICS code
2252	Hosiery, Not Elsewhere Classified	31511	Hosiery and Sock Mills	many-to-one6 SIC codes share this NAICS code
2253	Knit Outerwear Mills	31511	Hosiery and Sock Mills	many-to-one6 SIC codes share this NAICS code
2254	Knit Underwear and Nightwear Mills	31511	Hosiery and Sock Mills	many-to-one6 SIC codes share this NAICS code
2257	Weft Knit Fabric Mills	31511	Hosiery and Sock Mills	many-to-one6 SIC codes share this NAICS code
2258	Lace and Warp Knit Fabric Mills	31511	Hosiery and Sock Mills	many-to-one6 SIC codes share this NAICS code
2259	Knitting Mills, Not Elsewhere Classified	31519	Other Apparel Knitting Mills	one-to-one
2261	Finishers of Broadwoven Fabrics of Cotton	31311	Fiber, Yarn, and Thread Mills	many-to-one7 SIC codes share this NAICS code
2262	Finishers of Broadwoven Fabrics of Manmade Fiber and Silk	31311	Fiber, Yarn, and Thread Mills	many-to-one7 SIC codes share this NAICS code
2269	Finishers of Textiles, Not Elsewhere Classified	31311	Fiber, Yarn, and Thread Mills	many-to-one7 SIC codes share this NAICS code
2273	Carpets and Rugs	31411	Carpet and Rug Mills	one-to-one
2281	Yarn Spinning Mills	31311	Fiber, Yarn, and Thread Mills	many-to-one7 SIC codes share this NAICS code
2282	Yarn Texturizing, Throwing, Twisting, and Winding Mills	31311	Fiber, Yarn, and Thread Mills	many-to-one7 SIC codes share this NAICS code
2284	Thread Mills	31311	Fiber, Yarn, and Thread Mills	many-to-one7 SIC codes share this NAICS code
2295	Coated Fabrics, Not Rubberized	31332no page — parent 3133	Coated Fabrics, Not Rubberized	many-to-one4 SIC codes share this NAICS code
2296	Tire Cord and Fabrics	31332no page — parent 3133	Tire Cord and Fabrics	many-to-one4 SIC codes share this NAICS code
2297	Non-woven Fabrics	31332no page — parent 3133	Non-woven Fabrics	many-to-one4 SIC codes share this NAICS code
2298	Cordage and Twine	31332no page — parent 3133	Cordage and Twine	many-to-one4 SIC codes share this NAICS code
2299	Textile Goods, Not Elsewhere Classified	31322	Narrow Fabric Mills and Schiffli Machine Embroidery	one-to-one
2311	Men's and Boys' Suits, Coats, and Overcoats	31521	Cut and Sew Apparel Contractors	many-to-one5 SIC codes share this NAICS code
2321	Men's and Boys' Shirts, Except Work Shirts	31522	Men's and Boys' Cut and Sew Apparel Manufacturing	many-to-one3 SIC codes share this NAICS code
2322	Men's and Boys' Underwear and Nightwear	31522	Men's and Boys' Cut and Sew Apparel Manufacturing	many-to-one3 SIC codes share this NAICS code
2323	Men's and Boys' Neckwear	31523no page — parent 3152	Men's and Boys' Neckwear	many-to-one5 SIC codes share this NAICS code
2325	Men's and Boys' Separate Trousers and Slacks	31521	Cut and Sew Apparel Contractors	many-to-one5 SIC codes share this NAICS code
2326	Men's and Boys' Work Clothing	31521	Cut and Sew Apparel Contractors	many-to-one5 SIC codes share this NAICS code
2329	Men's and Boys' Clothing, Not Elsewhere Classified	31529no page — parent 3152	Men's and Boys' Clothing, Not Elsewhere Classified	many-to-one2 SIC codes share this NAICS code
2331	Women's, Misses', and Juniors' Blouses and Shirts	31523no page — parent 3152	Women's, Misses', and Juniors' Blouses and Shirts	many-to-one5 SIC codes share this NAICS code
2335	Women's, Misses', and Juniors' Dresses	31523no page — parent 3152	Women's, Misses', and Juniors' Dresses	many-to-one5 SIC codes share this NAICS code
2337	Women's, Misses', and Juniors' Suits, Skirts, and Coats	31523no page — parent 3152	Women's, Misses', and Juniors' Suits, Skirts, and Coats	many-to-one5 SIC codes share this NAICS code
2339	Women's, Misses', and Juniors' Outerwear, Not Elsewhere Classified	31529no page — parent 3152	Women's, Misses', and Juniors' Outerwear, Not Elsewhere Classified	many-to-one2 SIC codes share this NAICS code
2341	Women's, Misses', Children's, and Infants' Underwear and Nightwear	31523no page — parent 3152	Women's, Misses', Children's, and Infants' Underwear and Nightwear	many-to-one5 SIC codes share this NAICS code
2353	Hats, Caps, and Millinery	31599	Apparel Accessories and Other Apparel Manufacturing	many-to-one7 SIC codes share this NAICS code
2361	Girls', Children's, and Infants' Dresses, Blouses, and Shirts	31521	Cut and Sew Apparel Contractors	many-to-one5 SIC codes share this NAICS code
2369	Girls', Children's, and Infants' Outerwear, Not Elsewhere Classified	31521	Cut and Sew Apparel Contractors	many-to-one5 SIC codes share this NAICS code
2371	Fur Goods	31599	Apparel Accessories and Other Apparel Manufacturing	many-to-one7 SIC codes share this NAICS code
2381	Dress and Work Gloves, Except Knit and All-Leather	31522	Men's and Boys' Cut and Sew Apparel Manufacturing	many-to-one3 SIC codes share this NAICS code
2384	Robes and Dressing Gowns	31599	Apparel Accessories and Other Apparel Manufacturing	many-to-one7 SIC codes share this NAICS code
2385	Waterproof Outerwear	31599	Apparel Accessories and Other Apparel Manufacturing	many-to-one7 SIC codes share this NAICS code
2386	Leather and Sheep-Lined Clothing	31599	Apparel Accessories and Other Apparel Manufacturing	many-to-one7 SIC codes share this NAICS code
2387	Apparel Belts	31599	Apparel Accessories and Other Apparel Manufacturing	many-to-one7 SIC codes share this NAICS code
2389	Apparel and Accessories, Not Elsewhere Classified	31599	Apparel Accessories and Other Apparel Manufacturing	many-to-one7 SIC codes share this NAICS code
2391	Curtains and Draperies	31491	Textile Bag and Canvas Mills	many-to-one6 SIC codes share this NAICS code
2392	House Furnishings, Except Curtains and Draperies	31491	Textile Bag and Canvas Mills	many-to-one6 SIC codes share this NAICS code
2393	Textile Bags	31491	Textile Bag and Canvas Mills	many-to-one6 SIC codes share this NAICS code
2394	Canvas and Related Products	31491	Textile Bag and Canvas Mills	many-to-one6 SIC codes share this NAICS code
2395	Pleating, Decorative and Novelty Stitching, and Tucking for the Trade	31491	Textile Bag and Canvas Mills	many-to-one6 SIC codes share this NAICS code
2396	Automotive Trimmings, Apparel Findings, and Related Products	31499	All Other Textile Product Mills	many-to-one2 SIC codes share this NAICS code
2397	Schiffli Machine Embroideries	31491	Textile Bag and Canvas Mills	many-to-one6 SIC codes share this NAICS code
2399	Fabricated Textile Products, Not Elsewhere Classified	31499	All Other Textile Product Mills	many-to-one2 SIC codes share this NAICS code
2411	Logging	11331	Logging	one-to-one
2421	Sawmills and Planing Mills, General	32111	Sawmills and Wood Preservation	one-to-one
2426	Hardwood Dimension and Flooring Mills	32191	Millwork	many-to-one3 SIC codes share this NAICS code
2429	Special Product Sawmills, Not Elsewhere Classified	32199	All Other Wood Product Manufacturing	many-to-one5 SIC codes share this NAICS code
2431	Millwork	32191	Millwork	many-to-one3 SIC codes share this NAICS code
2434	Wood Kitchen Cabinets	33711	Wood Kitchen Cabinet and Countertop Manufacturing	many-to-one6 SIC codes share this NAICS code
2435	Hardwood Veneer and Plywood	32121	Veneer, Plywood, and Engineered Wood Product Manufacturing	many-to-one4 SIC codes share this NAICS code
2436	Softwood Veneer and Plywood	32121	Veneer, Plywood, and Engineered Wood Product Manufacturing	many-to-one4 SIC codes share this NAICS code
2439	Structural Wood Members, Not Elsewhere Classified	32121	Veneer, Plywood, and Engineered Wood Product Manufacturing	many-to-one4 SIC codes share this NAICS code
2441	Nailed and Lock Corner Wood Boxes and Shook	32192	Wood Container and Pallet Manufacturing	many-to-one2 SIC codes share this NAICS code
2448	Wood Pallets and Skids	32192	Wood Container and Pallet Manufacturing	many-to-one2 SIC codes share this NAICS code
2449	Wood Containers, Not Elsewhere Classified	32199	All Other Wood Product Manufacturing	many-to-one5 SIC codes share this NAICS code
2451	Mobile Homes	32199	All Other Wood Product Manufacturing	many-to-one5 SIC codes share this NAICS code
2452	Prefabricated Wood Buildings and Components	32199	All Other Wood Product Manufacturing	many-to-one5 SIC codes share this NAICS code
2491	Wood Preserving	32191	Millwork	many-to-one3 SIC codes share this NAICS code
2493	Reconstituted Wood Products	32121	Veneer, Plywood, and Engineered Wood Product Manufacturing	many-to-one4 SIC codes share this NAICS code
2499	Wood Products, Not Elsewhere Classified	32199	All Other Wood Product Manufacturing	many-to-one5 SIC codes share this NAICS code
2511	Wood Household Furniture, Except Upholstered	33711	Wood Kitchen Cabinet and Countertop Manufacturing	many-to-one6 SIC codes share this NAICS code
2514	Metal Household Furniture	33712	Household and Institutional Furniture Manufacturing	many-to-one2 SIC codes share this NAICS code
2515	Mattresses, Foundations, and Convertible Beds	33712	Household and Institutional Furniture Manufacturing	many-to-one2 SIC codes share this NAICS code
2521	Wood Office Furniture	33711	Wood Kitchen Cabinet and Countertop Manufacturing	many-to-one6 SIC codes share this NAICS code
2522	Office Furniture, Except Wood	33711	Wood Kitchen Cabinet and Countertop Manufacturing	many-to-one6 SIC codes share this NAICS code
2531	Public Building and Related Furniture	33711	Wood Kitchen Cabinet and Countertop Manufacturing	many-to-one6 SIC codes share this NAICS code
2541	Wood Office and Store Fixtures, Partitions, Shelving, and Lockers	33711	Wood Kitchen Cabinet and Countertop Manufacturing	many-to-one6 SIC codes share this NAICS code
2591	Drapery Hardware and Window Blinds and Shades	33721	Office Furniture (including Fixtures) Manufacturing	one-to-one
2599	Furniture and Fixtures, Not Elsewhere Classified	33729no page — parent 3372	Furniture and Fixtures, Not Elsewhere Classified	one-to-one
2611	Pulp Mills	32211	Pulp Mills	one-to-one
2621	Paper Mills	32212	Paper Mills	one-to-one
2631	Paperboard Mills	32213	Paperboard Mills	one-to-one
2652	Setup Paperboard Boxes	32221	Paperboard Container Manufacturing	many-to-one5 SIC codes share this NAICS code
2653	Corrugated and Solid Fiber Boxes	32221	Paperboard Container Manufacturing	many-to-one5 SIC codes share this NAICS code
2655	Fiber Cans, Tubes, Drums, and Similar Products	32221	Paperboard Container Manufacturing	many-to-one5 SIC codes share this NAICS code
2656	Sanitary Food Containers, Except Folding	32221	Paperboard Container Manufacturing	many-to-one5 SIC codes share this NAICS code
2657	Folding Paperboard Boxes, Including Sanitary	32221	Paperboard Container Manufacturing	many-to-one5 SIC codes share this NAICS code
2671	Packaging Paper and Plastics Film, Coated and Laminated	32222	Paper Bag and Coated and Treated Paper Manufacturing	many-to-one9 SIC codes share this NAICS code
2672	Coated and Laminated Paper, Not Elsewhere Classified	32222	Paper Bag and Coated and Treated Paper Manufacturing	many-to-one9 SIC codes share this NAICS code
2673	Plastics, Foil, and Coated Paper Bags	32222	Paper Bag and Coated and Treated Paper Manufacturing	many-to-one9 SIC codes share this NAICS code
2674	Uncoated Paper and Multiwall Bags	32222	Paper Bag and Coated and Treated Paper Manufacturing	many-to-one9 SIC codes share this NAICS code
2675	Die-Cut Paper and Paperboard and Cardboard	32222	Paper Bag and Coated and Treated Paper Manufacturing	many-to-one9 SIC codes share this NAICS code
2676	Sanitary Paper Products	32222	Paper Bag and Coated and Treated Paper Manufacturing	many-to-one9 SIC codes share this NAICS code
2677	Envelopes	32222	Paper Bag and Coated and Treated Paper Manufacturing	many-to-one9 SIC codes share this NAICS code
2678	Stationery, Tablets, and Related Products	32222	Paper Bag and Coated and Treated Paper Manufacturing	many-to-one9 SIC codes share this NAICS code
2679	Converted Paper and Paperboard Products, Not Elsewhere Classified	32222	Paper Bag and Coated and Treated Paper Manufacturing	many-to-one9 SIC codes share this NAICS code
2711	Newspapers: Publishing, or Publishing and Printing	51111no page — parent 51	Newspapers: Publishing, or Publishing and Printing	one-to-one
2721	Periodicals: Publishing, or Publishing and Printing	51112no page — parent 51	Periodicals: Publishing, or Publishing and Printing	one-to-one
2731	Books: Publishing, or Publishing and Printing	51113no page — parent 51	Books: Publishing, or Publishing and Printing	one-to-one
2732	Book Printing	51119no page — parent 51	Book Printing	one-to-one
2741	Miscellaneous Publishing	51114no page — parent 51	Miscellaneous Publishing	one-to-one
2752	Commercial Printing, Lithographic	32311	Printing	many-to-one9 SIC codes share this NAICS code
2759	Commercial Printing, Not Elsewhere Classified	32311	Printing	many-to-one9 SIC codes share this NAICS code
2761	Manifold Business Forms	32311	Printing	many-to-one9 SIC codes share this NAICS code
2771	Greeting Cards	32311	Printing	many-to-one9 SIC codes share this NAICS code
2782	Blankbooks	32311	Printing	many-to-one9 SIC codes share this NAICS code
2789	Bookbinding and Related Work	32311	Printing	many-to-one9 SIC codes share this NAICS code
2791	Typesetting	32311	Printing	many-to-one9 SIC codes share this NAICS code
2796	Platemaking and Related Services	32311	Printing	many-to-one9 SIC codes share this NAICS code
2812	Alkalies and Chlorine	32518	Other Basic Inorganic Chemical Manufacturing	many-to-one5 SIC codes share this NAICS code
2813	Industrial Gases	32512	Industrial Gas Manufacturing	one-to-one
2816	Inorganic Pigments	32518	Other Basic Inorganic Chemical Manufacturing	many-to-one5 SIC codes share this NAICS code
2819	Industrial Inorganic Chemicals, Not Elsewhere Classified	32518	Other Basic Inorganic Chemical Manufacturing	many-to-one5 SIC codes share this NAICS code
2821	Plastics Materials, Synthetic Resins, and Nonvulcanizable Elastomers	32521	Plastics Material and Resin Manufacturing	many-to-one3 SIC codes share this NAICS code
2822	Synthetic Rubber (Vulcanizable Elastomers)	32521	Plastics Material and Resin Manufacturing	many-to-one3 SIC codes share this NAICS code
2824	Manmade Organic Fibers, Except Cellulosic	32521	Plastics Material and Resin Manufacturing	many-to-one3 SIC codes share this NAICS code
2833	Medicinal Chemicals and Botanical Products	32541	Pharmaceutical and Medicine Manufacturing	many-to-one3 SIC codes share this NAICS code
2835	In Vitro and In Vivo Diagnostic Substances	32541	Pharmaceutical and Medicine Manufacturing	many-to-one3 SIC codes share this NAICS code
2836	Biological Products, Except Diagnostic Substances	32541	Pharmaceutical and Medicine Manufacturing	many-to-one3 SIC codes share this NAICS code
2841	Soap and Other Detergents, Except Specialty Cleaners	32561	Soap and Other Detergent Manufacturing	one-to-one
2842	Specialty Cleaning, Polishing, and Sanitation Preparations	32562	Polish and Other Sanitation Good Manufacturing	many-to-one3 SIC codes share this NAICS code
2843	Surface Active Agents, Finishing Agents, Sulfonated Oils, and Assistants	32562	Polish and Other Sanitation Good Manufacturing	many-to-one3 SIC codes share this NAICS code
2844	Perfumes, Cosmetics, and Other Toilet Preparations	32562	Polish and Other Sanitation Good Manufacturing	many-to-one3 SIC codes share this NAICS code
2851	Paints, Varnishes, Lacquers, Enamels, and Allied Products	32551	Paint and Coating Manufacturing	one-to-one
2861	Gum and Wood Chemicals	32519	Other Basic Organic Chemical Manufacturing	many-to-one2 SIC codes share this NAICS code
2865	Cyclic Organic Crudes and Intermediates, and Organic Dyes and Pigments	32518	Other Basic Inorganic Chemical Manufacturing	many-to-one5 SIC codes share this NAICS code
2869	Industrial Organic Chemicals, Not Elsewhere Classified	32518	Other Basic Inorganic Chemical Manufacturing	many-to-one5 SIC codes share this NAICS code
2873	Nitrogenous Fertilizers	32531	Fertilizer Manufacturing	many-to-one4 SIC codes share this NAICS code
2874	Phosphatic Fertilizers	32531	Fertilizer Manufacturing	many-to-one4 SIC codes share this NAICS code
2875	Fertilizers, Mixing Only	32531	Fertilizer Manufacturing	many-to-one4 SIC codes share this NAICS code
2879	Pesticides and Agricultural Chemicals, Not Elsewhere Classified	32532	Pesticide and Other Agricultural Chemical Manufacturing	one-to-one
2891	Adhesives and Sealants	32552	Adhesive Manufacturing	one-to-one
2892	Explosives	32592	Explosives Manufacturing	one-to-one
2893	Printing Ink	32591	Printing Ink Manufacturing	one-to-one
2895	Carbon Black	32519	Other Basic Organic Chemical Manufacturing	many-to-one2 SIC codes share this NAICS code
2899	Chemicals and Chemical Preparations, Not Elsewhere Classified	32599	All Other Chemical Product and Preparation Manufacturing	one-to-one
2911	Petroleum Refining	32411	Petroleum Refineries	one-to-one
2951	Asphalt Paving Mixtures and Blocks	32412no page — parent 3241	Asphalt Paving Mixtures and Blocks	many-to-one2 SIC codes share this NAICS code
2952	Asphalt Felts and Coatings	32412no page — parent 3241	Asphalt Felts and Coatings	many-to-one2 SIC codes share this NAICS code
2992	Lubricating Oils and Greases	32419	Other Petroleum and Coal Products Manufacturing	many-to-one2 SIC codes share this NAICS code
2999	Products of Petroleum and Coal, Not Elsewhere Classified	32419	Other Petroleum and Coal Products Manufacturing	many-to-one2 SIC codes share this NAICS code
3011	Tires and Inner Tubes	32621	Tire Manufacturing	many-to-one2 SIC codes share this NAICS code
3021	Rubber and Plastics Footwear	32621	Tire Manufacturing	many-to-one2 SIC codes share this NAICS code
3052	Rubber and Plastics Hose and Belting	32629	Other Rubber Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3053	Gaskets, Packing, and Sealing Devices	32629	Other Rubber Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3061	Molded, Extruded, and Lathe-Cut Mechanical Rubber Goods	32629	Other Rubber Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3069	Fabricated Rubber Products, Not Elsewhere Classified	32629	Other Rubber Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3081	Unsupported Plastics Film and Sheet	32619	Other Plastics Product Manufacturing	many-to-one9 SIC codes share this NAICS code
3082	Unsupported Plastics Profile Shapes	32619	Other Plastics Product Manufacturing	many-to-one9 SIC codes share this NAICS code
3083	Laminated Plastics Plate, Sheet, and Profile Shapes	32619	Other Plastics Product Manufacturing	many-to-one9 SIC codes share this NAICS code
3084	Plastics Pipe	32619	Other Plastics Product Manufacturing	many-to-one9 SIC codes share this NAICS code
3085	Plastics Bottles	32619	Other Plastics Product Manufacturing	many-to-one9 SIC codes share this NAICS code
3086	Plastics Foam Products	32619	Other Plastics Product Manufacturing	many-to-one9 SIC codes share this NAICS code
3087	Custom Compounding of Purchased Plastics Resins	32619	Other Plastics Product Manufacturing	many-to-one9 SIC codes share this NAICS code
3088	Plastics Plumbing Fixtures	32619	Other Plastics Product Manufacturing	many-to-one9 SIC codes share this NAICS code
3089	Plastics Products, Not Elsewhere Classified	32619	Other Plastics Product Manufacturing	many-to-one9 SIC codes share this NAICS code
3111	Leather Tanning and Finishing	31611	Leather and Hide Tanning and Finishing	many-to-one2 SIC codes share this NAICS code
3131	Boot and Shoe Cut Stock and Findings	31621	Footwear Manufacturing	many-to-one4 SIC codes share this NAICS code
3142	House Slippers	31621	Footwear Manufacturing	many-to-one4 SIC codes share this NAICS code
3143	Men's Footwear, Except Athletic	31621	Footwear Manufacturing	many-to-one4 SIC codes share this NAICS code
3144	Women's Footwear, Except Athletic	31621	Footwear Manufacturing	many-to-one4 SIC codes share this NAICS code
3149	Footwear, Except Rubber, Not Elsewhere Classified	31629no page — parent 3162	Footwear, Except Rubber, Not Elsewhere Classified	one-to-one
3151	Leather Gloves and Mittens	31611	Leather and Hide Tanning and Finishing	many-to-one2 SIC codes share this NAICS code
3161	Luggage	31699	Other Leather and Allied Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3171	Women's Handbags and Purses	31699	Other Leather and Allied Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3172	Personal Leather Goods, Except Women's Handbags and Purses	31699	Other Leather and Allied Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3199	Leather Goods, Not Elsewhere Classified	31699	Other Leather and Allied Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3211	Flat Glass	32721	Glass and Glass Product Manufacturing	many-to-one2 SIC codes share this NAICS code
3221	Glass Containers	32713no page — parent 3271	Glass Containers	one-to-one
3229	Pressed and Blown Glass and Glassware, Not Elsewhere Classified	32719no page — parent 3271	Pressed and Blown Glass and Glassware, Not Elsewhere Classified	one-to-one
3231	Glass Products, Made of Purchased Glass	32721	Glass and Glass Product Manufacturing	many-to-one2 SIC codes share this NAICS code
3241	Cement, Hydraulic	32731	Cement Manufacturing	many-to-one2 SIC codes share this NAICS code
3251	Brick and Structural Clay Tile	32741	Lime Manufacturing	many-to-one6 SIC codes share this NAICS code
3253	Ceramic Wall and Floor Tile	32741	Lime Manufacturing	many-to-one6 SIC codes share this NAICS code
3255	Clay Refractories	32741	Lime Manufacturing	many-to-one6 SIC codes share this NAICS code
3259	Structural Clay Products, Not Elsewhere Classified	32741	Lime Manufacturing	many-to-one6 SIC codes share this NAICS code
3261	Vitreous China Plumbing Fixtures and China and Earthenware Fittings and Bathroom Accessories	32711	Pottery, Ceramics, and Plumbing Fixture Manufacturing	many-to-one5 SIC codes share this NAICS code
3262	Vitreous China Table and Kitchen Articles	32711	Pottery, Ceramics, and Plumbing Fixture Manufacturing	many-to-one5 SIC codes share this NAICS code
3263	Fine Earthenware (Whiteware) Table and Kitchen Articles	32711	Pottery, Ceramics, and Plumbing Fixture Manufacturing	many-to-one5 SIC codes share this NAICS code
3264	Porcelain Electrical Supplies	32711	Pottery, Ceramics, and Plumbing Fixture Manufacturing	many-to-one5 SIC codes share this NAICS code
3269	Pottery Products, Not Elsewhere Classified	32711	Pottery, Ceramics, and Plumbing Fixture Manufacturing	many-to-one5 SIC codes share this NAICS code
3271	Concrete Block and Brick	32732	Ready-Mix Concrete Manufacturing	one-to-one
3272	Concrete Products, Except Block and Brick	32733	Concrete Pipe, Brick, and Block Manufacturing	many-to-one2 SIC codes share this NAICS code
3273	Ready-Mixed Concrete	32733	Concrete Pipe, Brick, and Block Manufacturing	many-to-one2 SIC codes share this NAICS code
3274	Lime	32741	Lime Manufacturing	many-to-one6 SIC codes share this NAICS code
3275	Gypsum Products	32741	Lime Manufacturing	many-to-one6 SIC codes share this NAICS code
3281	Cut Stone and Stone Products	32739	Other Concrete Product Manufacturing	one-to-one
3291	Abrasive Products	32791	Abrasive Product Manufacturing	many-to-one2 SIC codes share this NAICS code
3292	Asbestos Products	32791	Abrasive Product Manufacturing	many-to-one2 SIC codes share this NAICS code
3295	Minerals and Earths, Ground or Otherwise Treated	32731	Cement Manufacturing	many-to-one2 SIC codes share this NAICS code
3296	Mineral Wool	32799	All Other Nonmetallic Mineral Product Manufacturing	many-to-one3 SIC codes share this NAICS code
3297	Nonclay Refractories	32799	All Other Nonmetallic Mineral Product Manufacturing	many-to-one3 SIC codes share this NAICS code
3299	Nonmetallic Mineral Products, Not Elsewhere Classified	32799	All Other Nonmetallic Mineral Product Manufacturing	many-to-one3 SIC codes share this NAICS code
3312	Steel Works, Blast Furnaces (Including Coke Ovens), and Rolling Mills	33111	Iron and Steel Mills and Ferroalloy Manufacturing	many-to-one2 SIC codes share this NAICS code
3313	Electrometallurgical Products, Except Steel	33111	Iron and Steel Mills and Ferroalloy Manufacturing	many-to-one2 SIC codes share this NAICS code
3315	Steel Wiredrawing and Steel Nails and Spikes	33122	Rolling and Drawing of Purchased Steel	many-to-one3 SIC codes share this NAICS code
3316	Cold-Rolled Steel Sheet, Strip, and Bars	33122	Rolling and Drawing of Purchased Steel	many-to-one3 SIC codes share this NAICS code
3317	Steel Pipe and Tubes	33122	Rolling and Drawing of Purchased Steel	many-to-one3 SIC codes share this NAICS code
3321	Gray and Ductile Iron Foundries	33151	Ferrous Metal Foundries	many-to-one6 SIC codes share this NAICS code
3322	Malleable Iron Foundries	33151	Ferrous Metal Foundries	many-to-one6 SIC codes share this NAICS code
3325	Steel Foundries, Not Elsewhere Classified	33159no page — parent 3315	Steel Foundries, Not Elsewhere Classified	many-to-one3 SIC codes share this NAICS code
3334	Primary Production of Aluminum	33131	Alumina Refining and Primary Aluminum Production	one-to-one
3339	Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum	33139no page — parent 3313	Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum	one-to-one
3341	Secondary Smelting and Refining of Nonferrous Metals	33141	Nonferrous Metal (except Aluminum) Smelting and Refining	one-to-one
3351	Rolling, Drawing, and Extruding of Copper	33142	Copper Rolling, Drawing, Extruding, and Alloying	many-to-one4 SIC codes share this NAICS code
3353	Aluminum Sheet	33142	Copper Rolling, Drawing, Extruding, and Alloying	many-to-one4 SIC codes share this NAICS code
3354	Aluminum Extruded Products	33142	Copper Rolling, Drawing, Extruding, and Alloying	many-to-one4 SIC codes share this NAICS code
3355	Aluminum Rolling and Drawing, Not Elsewhere Classified	33142	Copper Rolling, Drawing, Extruding, and Alloying	many-to-one4 SIC codes share this NAICS code
3356	Rolling, Drawing, and Extruding of Nonferrous Metals, Except Copper and Aluminum	33149	Nonferrous Metal Rolling, Drawing, Extruding, and Alloying	one-to-one
3357	Drawing and Insulating of Nonferrous Wire	33592	Communication and Energy Wire and Cable Manufacturing	many-to-one2 SIC codes share this NAICS code
3363	Aluminum Die-Castings	33151	Ferrous Metal Foundries	many-to-one6 SIC codes share this NAICS code
3364	Nonferrous Die-Castings, Except Aluminum	33151	Ferrous Metal Foundries	many-to-one6 SIC codes share this NAICS code
3365	Aluminum Foundries	33151	Ferrous Metal Foundries	many-to-one6 SIC codes share this NAICS code
3366	Copper Foundries	33151	Ferrous Metal Foundries	many-to-one6 SIC codes share this NAICS code
3369	Nonferrous Foundries, Except Aluminum and Copper	33159no page — parent 3315	Nonferrous Foundries, Except Aluminum and Copper	many-to-one3 SIC codes share this NAICS code
3398	Metal Heat Treating	33199no page — parent 331	Metal Heat Treating	many-to-one2 SIC codes share this NAICS code
3399	Primary Metal Products, Not Elsewhere Classified	33199no page — parent 331	Primary Metal Products, Not Elsewhere Classified	many-to-one2 SIC codes share this NAICS code
3411	Metal Cans	33241	Power Boiler and Heat Exchanger Manufacturing	many-to-one2 SIC codes share this NAICS code
3412	Metal Shipping Barrels, Drums, Kegs, and Pails	33241	Power Boiler and Heat Exchanger Manufacturing	many-to-one2 SIC codes share this NAICS code
3423	Hand and Edge Tools, Except Machine Tools and Handsaws	33221	Cutlery and Handtool Manufacturing	many-to-one3 SIC codes share this NAICS code
3425	Saw Blades and Handsaws	33221	Cutlery and Handtool Manufacturing	many-to-one3 SIC codes share this NAICS code
3429	Hardware, Not Elsewhere Classified	33259no page — parent 3325	Hardware, Not Elsewhere Classified	many-to-one6 SIC codes share this NAICS code
3433	Heating Equipment, Except Electric and Warm Air Furnaces	33231	Plate Work and Fabricated Structural Product Manufacturing	many-to-one5 SIC codes share this NAICS code
3441	Fabricated Structural Metal	33231	Plate Work and Fabricated Structural Product Manufacturing	many-to-one5 SIC codes share this NAICS code
3442	Metal Doors, Sash, Frames, Molding, and Trim Manufacturing	33231	Plate Work and Fabricated Structural Product Manufacturing	many-to-one5 SIC codes share this NAICS code
3443	Fabricated Plate Work (Boiler Shops)	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3444	Sheet Metal Work	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3446	Architectural and Ornamental Metal Work	33231	Plate Work and Fabricated Structural Product Manufacturing	many-to-one5 SIC codes share this NAICS code
3448	Prefabricated Metal Buildings and Components	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3449	Miscellaneous Structural Metal Work	33231	Plate Work and Fabricated Structural Product Manufacturing	many-to-one5 SIC codes share this NAICS code
3462	Iron and Steel Forgings	33261	Spring and Wire Product Manufacturing	many-to-one2 SIC codes share this NAICS code
3463	Nonferrous Forgings	33261	Spring and Wire Product Manufacturing	many-to-one2 SIC codes share this NAICS code
3465	Automotive Stampings	33271	Machine Shops	many-to-one3 SIC codes share this NAICS code
3466	Crowns and Closures	33271	Machine Shops	many-to-one3 SIC codes share this NAICS code
3469	Metal Stampings, Not Elsewhere Classified	33271	Machine Shops	many-to-one3 SIC codes share this NAICS code
3471	Electroplating, Plating, Polishing, Anodizing, and Coloring	33281	Coating, Engraving, Heat Treating, and Allied Activities	many-to-one2 SIC codes share this NAICS code
3479	Coating, Engraving, and Allied Services, Not Elsewhere Classified	33281	Coating, Engraving, Heat Treating, and Allied Activities	many-to-one2 SIC codes share this NAICS code
3482	Small Arms Ammunition	33299	All Other Fabricated Metal Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3483	Ammunition, Except for Small Arms	33299	All Other Fabricated Metal Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3484	Small Arms	33292no page — parent 3329	Small Arms	many-to-one2 SIC codes share this NAICS code
3489	Ordnance and Accessories, Not Elsewhere Classified	33299	All Other Fabricated Metal Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3492	Fluid Power Valves and Hose Fittings	33259no page — parent 3325	Fluid Power Valves and Hose Fittings	many-to-one6 SIC codes share this NAICS code
3493	Steel Springs, Except Wire	33259no page — parent 3325	Steel Springs, Except Wire	many-to-one6 SIC codes share this NAICS code
3494	Valves and Pipe Fittings, Not Elsewhere Classified	33259no page — parent 3325	Valves and Pipe Fittings, Not Elsewhere Classified	many-to-one6 SIC codes share this NAICS code
3495	Wire Springs	33259no page — parent 3325	Wire Springs	many-to-one6 SIC codes share this NAICS code
3496	Miscellaneous Fabricated Wire Products	33159no page — parent 3315	Miscellaneous Fabricated Wire Products	many-to-one3 SIC codes share this NAICS code
3497	Metal Foil and Leaf	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3498	Fabricated Pipe and Pipe Fittings	33291	Metal Valve Manufacturing	many-to-one4 SIC codes share this NAICS code
3499	Fabricated Metal Products, Not Elsewhere Classified	33299	All Other Fabricated Metal Product Manufacturing	many-to-one4 SIC codes share this NAICS code
3511	Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units	33361	Engine, Turbine, and Power Transmission Equipment Manufacturing	many-to-one3 SIC codes share this NAICS code
3519	Internal Combustion Engines, Not Elsewhere Classified	33361	Engine, Turbine, and Power Transmission Equipment Manufacturing	many-to-one3 SIC codes share this NAICS code
3523	Farm Machinery and Equipment	33311	Agricultural Implement Manufacturing	many-to-one2 SIC codes share this NAICS code
3524	Lawn and Garden Tractors and Home Lawn and Garden Equipment	33311	Agricultural Implement Manufacturing	many-to-one2 SIC codes share this NAICS code
3531	Construction Machinery and Equipment	33312	Construction Machinery Manufacturing	one-to-one
3532	Mining Machinery and Equipment, Except Oil and Gas Field Machinery and Equipment	33313	Mining and Oil and Gas Field Machinery Manufacturing	many-to-one2 SIC codes share this NAICS code
3533	Oil and Gas Field Machinery and Equipment	33313	Mining and Oil and Gas Field Machinery Manufacturing	many-to-one2 SIC codes share this NAICS code
3534	Elevators and Moving Stairways	33331	Commercial and Service Industry Machinery Manufacturing	many-to-one4 SIC codes share this NAICS code
3535	Conveyors and Conveying Equipment	33331	Commercial and Service Industry Machinery Manufacturing	many-to-one4 SIC codes share this NAICS code
3536	Overhead Traveling Cranes, Hoists, and Monorail Systems	33331	Commercial and Service Industry Machinery Manufacturing	many-to-one4 SIC codes share this NAICS code
3537	Industrial Trucks, Tractors, Trailers, and Stackers	33331	Commercial and Service Industry Machinery Manufacturing	many-to-one4 SIC codes share this NAICS code
3541	Machine Tools, Metal Cutting Types	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3542	Machine Tools, Metal Forming Types	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3543	Industrial Patterns	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3544	Special Dies and Tools, Die Sets, Jigs and Fixtures, and Industrial Molds	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3545	Cutting Tools, Machine Tool Accessories, and Machinists' Precision Measuring Devices	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3546	Power-Driven Handtools	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3547	Rolling Mill Machinery and Equipment	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3548	Electric and Gas Welding and Soldering Equipment	33251	Hardware Manufacturing	many-to-one12 SIC codes share this NAICS code
3549	Metalworking Machinery, Not Elsewhere Classified	33259no page — parent 3325	Metalworking Machinery, Not Elsewhere Classified	many-to-one6 SIC codes share this NAICS code
3552	Textile Machinery	33292no page — parent 3329	Textile Machinery	many-to-one2 SIC codes share this NAICS code
3553	Woodworking Machinery	33211	Forging and Stamping	one-to-one
3554	Paper Industries Machinery	33291	Metal Valve Manufacturing	many-to-one4 SIC codes share this NAICS code
3555	Printing Trades Machinery and Equipment	33291	Metal Valve Manufacturing	many-to-one4 SIC codes share this NAICS code
3556	Food Products Machinery	33291	Metal Valve Manufacturing	many-to-one4 SIC codes share this NAICS code
3559	Special Industry Machinery, Not Elsewhere Classified	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3561	Pumps and Pumping Equipment	33391	Pump and Compressor Manufacturing	many-to-one5 SIC codes share this NAICS code
3562	Ball and Roller Bearings	33591	Battery Manufacturing	many-to-one3 SIC codes share this NAICS code
3563	Air and Gas Compressors	33391	Pump and Compressor Manufacturing	many-to-one5 SIC codes share this NAICS code
3564	Industrial and Commercial Fans and Blowers and Air Purification Equipment	33391	Pump and Compressor Manufacturing	many-to-one5 SIC codes share this NAICS code
3565	Packaging Machinery	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3566	Speed Changers, Industrial High-Speed Drives, and Gears	33361	Engine, Turbine, and Power Transmission Equipment Manufacturing	many-to-one3 SIC codes share this NAICS code
3567	Industrial Process Furnaces and Ovens	33391	Pump and Compressor Manufacturing	many-to-one5 SIC codes share this NAICS code
3568	Mechanical Power Transmission Equipment, Not Elsewhere Classified	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3569	General Industrial Machinery and Equipment, Not Elsewhere Classified	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3571	Electronic Computers	33411	Computer and Peripheral Equipment Manufacturing	many-to-one5 SIC codes share this NAICS code
3572	Computer Storage Devices	33411	Computer and Peripheral Equipment Manufacturing	many-to-one5 SIC codes share this NAICS code
3575	Computer Terminals	33411	Computer and Peripheral Equipment Manufacturing	many-to-one5 SIC codes share this NAICS code
3577	Computer Peripheral Equipment, Not Elsewhere Classified	33411	Computer and Peripheral Equipment Manufacturing	many-to-one5 SIC codes share this NAICS code
3578	Calculating and Accounting Machines, Except Electronic Computers	33411	Computer and Peripheral Equipment Manufacturing	many-to-one5 SIC codes share this NAICS code
3579	Office Machines, Not Elsewhere Classified	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3581	Automatic Vending Machines	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3585	Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment	33341	HVAC and Commercial Refrigeration Equipment Manufacturing	one-to-one
3586	Measuring and Dispensing Pumps	33391	Pump and Compressor Manufacturing	many-to-one5 SIC codes share this NAICS code
3589	Service Industry Machinery, Not Elsewhere Classified	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3592	Carburetors, Pistons, Piston Rings, and Valves	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3593	Fluid Power Cylinders and Actuators	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3594	Fluid Power Pumps and Motors	33392	Material Handling Equipment Manufacturing	many-to-one2 SIC codes share this NAICS code
3596	Scales and Balances, Except Laboratory	33392	Material Handling Equipment Manufacturing	many-to-one2 SIC codes share this NAICS code
3599	Industrial and Commercial Machinery and Equipment, Not Elsewhere Classified	33399	All Other General Purpose Machinery Manufacturing	many-to-one10 SIC codes share this NAICS code
3612	Power, Distribution, and Specialty Transformers	33511	Electric Lamp Bulb and Part Manufacturing	many-to-one6 SIC codes share this NAICS code
3613	Switchgear and Switchboard Apparatus	33511	Electric Lamp Bulb and Part Manufacturing	many-to-one6 SIC codes share this NAICS code
3621	Motors and Generators	33512	Lighting Equipment Manufacturing	many-to-one4 SIC codes share this NAICS code
3625	Relays and Industrial Controls	33511	Electric Lamp Bulb and Part Manufacturing	many-to-one6 SIC codes share this NAICS code
3629	Electrical Industrial Apparatus, Not Elsewhere Classified	33519no page — parent 3351	Electrical Industrial Apparatus, Not Elsewhere Classified	one-to-one
3631	Household Cooking Equipment	33521	Small Electrical Appliance Manufacturing	many-to-one5 SIC codes share this NAICS code
3632	Household Refrigerators and Home and Farm Freezers	33521	Small Electrical Appliance Manufacturing	many-to-one5 SIC codes share this NAICS code
3633	Household Laundry Equipment	33521	Small Electrical Appliance Manufacturing	many-to-one5 SIC codes share this NAICS code
3634	Electric Housewares and Fans	33521	Small Electrical Appliance Manufacturing	many-to-one5 SIC codes share this NAICS code
3635	Household Vacuum Cleaners	33521	Small Electrical Appliance Manufacturing	many-to-one5 SIC codes share this NAICS code
3639	Household Appliances, Not Elsewhere Classified	33529no page — parent 3352	Household Appliances, Not Elsewhere Classified	one-to-one
3641	Electric Lamp Bulbs and Tubes	33511	Electric Lamp Bulb and Part Manufacturing	many-to-one6 SIC codes share this NAICS code
3643	Current-Carrying Wiring Devices	33511	Electric Lamp Bulb and Part Manufacturing	many-to-one6 SIC codes share this NAICS code
3644	Noncurrent-Carrying Wiring Devices	33511	Electric Lamp Bulb and Part Manufacturing	many-to-one6 SIC codes share this NAICS code
3645	Residential Electric Lighting Fixtures	33512	Lighting Equipment Manufacturing	many-to-one4 SIC codes share this NAICS code
3646	Commercial, Industrial, and Institutional Electric Lighting Fixtures	33512	Lighting Equipment Manufacturing	many-to-one4 SIC codes share this NAICS code
3647	Vehicular Lighting Equipment	33592	Communication and Energy Wire and Cable Manufacturing	many-to-one2 SIC codes share this NAICS code
3648	Lighting Equipment, Not Elsewhere Classified	33512	Lighting Equipment Manufacturing	many-to-one4 SIC codes share this NAICS code
3651	Household Audio and Video Equipment	33431	Audio and Video Equipment Manufacturing	one-to-one
3652	Phonograph Records and Prerecorded Audio Tapes and Disks	33461	Manufacturing and Reproducing Magnetic and Optical Media	many-to-one2 SIC codes share this NAICS code
3661	Telephone and Telegraph Apparatus	33421	Telephone Apparatus Manufacturing	many-to-one2 SIC codes share this NAICS code
3663	Radio and Television Broadcasting and Communications Equipment	33421	Telephone Apparatus Manufacturing	many-to-one2 SIC codes share this NAICS code
3669	Communications Equipment, Not Elsewhere Classified	33429no page — parent 3342	Communications Equipment, Not Elsewhere Classified	one-to-one
3671	Electron Tubes	33441	Semiconductor and Other Electronic Component Manufacturing	many-to-one7 SIC codes share this NAICS code
3672	Printed Circuit Boards	33441	Semiconductor and Other Electronic Component Manufacturing	many-to-one7 SIC codes share this NAICS code
3674	Semiconductors and Related Devices	33441	Semiconductor and Other Electronic Component Manufacturing	many-to-one7 SIC codes share this NAICS code
3675	Electronic Capacitors	33441	Semiconductor and Other Electronic Component Manufacturing	many-to-one7 SIC codes share this NAICS code
3676	Electronic Resistors	33441	Semiconductor and Other Electronic Component Manufacturing	many-to-one7 SIC codes share this NAICS code
3677	Electronic Coils, Transformers, and Other Inductors	33441	Semiconductor and Other Electronic Component Manufacturing	many-to-one7 SIC codes share this NAICS code
3678	Electronic Connectors	33441	Semiconductor and Other Electronic Component Manufacturing	many-to-one7 SIC codes share this NAICS code
3679	Electronic Components, Not Elsewhere Classified	33449no page — parent 3344	Electronic Components, Not Elsewhere Classified	one-to-one
3691	Storage Batteries	33591	Battery Manufacturing	many-to-one3 SIC codes share this NAICS code
3692	Primary Batteries, Dry and Wet	33591	Battery Manufacturing	many-to-one3 SIC codes share this NAICS code
3694	Electrical Equipment for Internal Combustion Engines	33599	All Other Electrical Equipment and Component Manufacturing	many-to-one2 SIC codes share this NAICS code
3695	Magnetic and Optical Recording Media	33461	Manufacturing and Reproducing Magnetic and Optical Media	many-to-one2 SIC codes share this NAICS code
3699	Electrical Machinery, Equipment, and Supplies, Not Elsewhere Classified	33599	All Other Electrical Equipment and Component Manufacturing	many-to-one2 SIC codes share this NAICS code
3711	Motor Vehicles and Passenger Car Bodies	33611	Automobile and Light Duty Motor Vehicle Manufacturing	one-to-one
3713	Truck and Bus Bodies	33612	Heavy Duty Truck Manufacturing	many-to-one3 SIC codes share this NAICS code
3714	Motor Vehicle Parts and Accessories	33636	Motor Vehicle Seating and Interior Trim Manufacturing	one-to-one
3715	Truck Trailers	33612	Heavy Duty Truck Manufacturing	many-to-one3 SIC codes share this NAICS code
3716	Motor Homes	33612	Heavy Duty Truck Manufacturing	many-to-one3 SIC codes share this NAICS code
3721	Aircraft	33641	Aerospace Product and Parts Manufacturing	many-to-one3 SIC codes share this NAICS code
3724	Aircraft Engines and Engine Parts	33641	Aerospace Product and Parts Manufacturing	many-to-one3 SIC codes share this NAICS code
3728	Aircraft Parts and Auxiliary Equipment, Not Elsewhere Classified	33641	Aerospace Product and Parts Manufacturing	many-to-one3 SIC codes share this NAICS code
3731	Ship Building and Repairing	33661	Ship Building and Repairing	many-to-one2 SIC codes share this NAICS code
3732	Boat Building and Repairing	33661	Ship Building and Repairing	many-to-one2 SIC codes share this NAICS code
3743	Railroad Equipment	33651	Railroad Rolling Stock Manufacturing	one-to-one
3751	Motorcycles, Bicycles, and Parts	33699	Other Transportation Equipment Manufacturing	many-to-one3 SIC codes share this NAICS code
3792	Travel Trailers and Campers	33621	Motor Vehicle Body and Trailer Manufacturing	one-to-one
3795	Tanks and Tank Components	33699	Other Transportation Equipment Manufacturing	many-to-one3 SIC codes share this NAICS code
3799	Transportation Equipment, Not Elsewhere Classified	33699	Other Transportation Equipment Manufacturing	many-to-one3 SIC codes share this NAICS code
3812	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical Systems and Instruments	33451	Navigational, Measuring, Electromedical, and Control Instruments Manufacturing	many-to-one9 SIC codes share this NAICS code
3821	Laboratory Apparatus and Furniture	33451	Navigational, Measuring, Electromedical, and Control Instruments Manufacturing	many-to-one9 SIC codes share this NAICS code
3822	Automatic Controls for Regulating Residential and Commercial Environments and Appliances	33451	Navigational, Measuring, Electromedical, and Control Instruments Manufacturing	many-to-one9 SIC codes share this NAICS code
3824	Totalizing Fluid Meters and Counting Devices	33451	Navigational, Measuring, Electromedical, and Control Instruments Manufacturing	many-to-one9 SIC codes share this NAICS code
3825	Instruments for Measuring and Testing of Electricity and Electrical Signals	33451	Navigational, Measuring, Electromedical, and Control Instruments Manufacturing	many-to-one9 SIC codes share this NAICS code
3826	Laboratory Analytical Instruments	33451	Navigational, Measuring, Electromedical, and Control Instruments Manufacturing	many-to-one9 SIC codes share this NAICS code
3827	Optical Instruments and Lenses	33451	Navigational, Measuring, Electromedical, and Control Instruments Manufacturing	many-to-one9 SIC codes share this NAICS code
3829	Measuring and Controlling Devices, Not Elsewhere Classified	33459no page — parent 3345	Measuring and Controlling Devices, Not Elsewhere Classified	one-to-one
3841	Surgical and Medical Instruments and Apparatus	33911	Medical Equipment and Supplies Manufacturing	many-to-one4 SIC codes share this NAICS code
3842	Orthopedic, Prosthetic, and Surgical Appliances and Supplies	33911	Medical Equipment and Supplies Manufacturing	many-to-one4 SIC codes share this NAICS code
3843	Dental Equipment and Supplies	33911	Medical Equipment and Supplies Manufacturing	many-to-one4 SIC codes share this NAICS code
3844	X-Ray Apparatus and Tubes and Related Irradiation Apparatus	33451	Navigational, Measuring, Electromedical, and Control Instruments Manufacturing	many-to-one9 SIC codes share this NAICS code
3845	Electromedical and Electrotherapeutic Apparatus	33451	Navigational, Measuring, Electromedical, and Control Instruments Manufacturing	many-to-one9 SIC codes share this NAICS code
3851	Ophthalmic Goods	33911	Medical Equipment and Supplies Manufacturing	many-to-one4 SIC codes share this NAICS code
3861	Photographic Equipment and Supplies	32531	Fertilizer Manufacturing	many-to-one4 SIC codes share this NAICS code
3873	Watches, Clocks, Clockwork Operated Devices, and Parts	33491no page — parent 334	Watches, Clocks, Clockwork Operated Devices, and Parts	one-to-one
3911	Jewelry, Precious Metal	33991	Jewelry and Silverware Manufacturing	many-to-one2 SIC codes share this NAICS code
3914	Silverware, Plated Ware, and Stainless Steel Ware	33221	Cutlery and Handtool Manufacturing	many-to-one3 SIC codes share this NAICS code
3915	Jewelers' Findings and Materials, and Lapidary Work	33999	All Other Miscellaneous Manufacturing	many-to-one6 SIC codes share this NAICS code
3931	Musical Instruments	33992	Sporting and Athletic Goods Manufacturing	one-to-one
3942	Dolls and Stuffed Toys	33993	Doll, Toy, and Game Manufacturing	many-to-one2 SIC codes share this NAICS code
3944	Games, Toys, and Children's Vehicles, Except Dolls and Bicycles	33993	Doll, Toy, and Game Manufacturing	many-to-one2 SIC codes share this NAICS code
3949	Sporting and Athletic Goods, Not Elsewhere Classified	33999	All Other Miscellaneous Manufacturing	many-to-one6 SIC codes share this NAICS code
3951	Pens, Mechanical Pencils, and Parts	33994	Office Supplies (except Paper) Manufacturing	many-to-one4 SIC codes share this NAICS code
3952	Lead Pencils, Crayons, and Artists' Materials	33994	Office Supplies (except Paper) Manufacturing	many-to-one4 SIC codes share this NAICS code
3953	Marking Devices	32311	Printing	many-to-one9 SIC codes share this NAICS code
3955	Carbon Paper and Inked Ribbons	33994	Office Supplies (except Paper) Manufacturing	many-to-one4 SIC codes share this NAICS code
3961	Costume Jewelry and Costume Novelties, Except Precious Metal	33991	Jewelry and Silverware Manufacturing	many-to-one2 SIC codes share this NAICS code
3965	Fasteners, Buttons, Needles, and Pins	33999	All Other Miscellaneous Manufacturing	many-to-one6 SIC codes share this NAICS code
3991	Brooms and Brushes	33994	Office Supplies (except Paper) Manufacturing	many-to-one4 SIC codes share this NAICS code
3993	Signs and Advertising Specialties	33999	All Other Miscellaneous Manufacturing	many-to-one6 SIC codes share this NAICS code
3995	Burial Caskets	33999	All Other Miscellaneous Manufacturing	many-to-one6 SIC codes share this NAICS code
3996	Linoleum, Asphalted-Felt-Base, and Other Hard Surface Floor Coverings, Not Elsewhere Classified	33499no page — parent 334	Linoleum, Asphalted-Felt-Base, and Other Hard Surface Floor Coverings, Not Elsewhere Classified	one-to-one
3999	Manufacturing Industries, Not Elsewhere Classified	33999	All Other Miscellaneous Manufacturing	many-to-one6 SIC codes share this NAICS code
4011	Railroads, Line-Haul Operating	48211	Rail Transportation	many-to-one2 SIC codes share this NAICS code
4013	Railroad Switching and Terminal Establishments	48211	Rail Transportation	many-to-one2 SIC codes share this NAICS code
4111	Local and Suburban Transit	48511	Urban Transit Systems	many-to-one3 SIC codes share this NAICS code
4119	Local Passenger Transportation, Not Elsewhere Classified	48521	Interurban and Rural Bus Transportation	many-to-one4 SIC codes share this NAICS code
4121	Taxicabs	48521	Interurban and Rural Bus Transportation	many-to-one4 SIC codes share this NAICS code
4131	Intercity and Rural Bus Transportation	48511	Urban Transit Systems	many-to-one3 SIC codes share this NAICS code
4141	Local Bus Charter Service	48521	Interurban and Rural Bus Transportation	many-to-one4 SIC codes share this NAICS code
4142	Bus Charter Service, Except Local	48521	Interurban and Rural Bus Transportation	many-to-one4 SIC codes share this NAICS code
4151	School Buses	48511	Urban Transit Systems	many-to-one3 SIC codes share this NAICS code
4173	Terminal and Service Facilities for Motor Vehicle Passenger Transportation	48541	School and Employee Bus Transportation	one-to-one
4212	Local Trucking Without Storage	48411	General Freight Trucking, Local	many-to-one3 SIC codes share this NAICS code
4213	Trucking, Except Local	48411	General Freight Trucking, Local	many-to-one3 SIC codes share this NAICS code
4214	Local Trucking With Storage	48411	General Freight Trucking, Local	many-to-one3 SIC codes share this NAICS code
4215	Courier Services, Except by Air	49211	Couriers and Express Delivery Services	many-to-one2 SIC codes share this NAICS code
4221	Farm Product Warehousing and Storage	49311	General Warehousing and Storage	one-to-one
4222	Refrigerated Warehousing and Storage	49312	Refrigerated Warehousing and Storage	one-to-one
4225	General Warehousing and Storage	49319	Other Warehousing and Storage	many-to-one2 SIC codes share this NAICS code
4226	Special Warehousing and Storage, Not Elsewhere Classified	49319	Other Warehousing and Storage	many-to-one2 SIC codes share this NAICS code
4231	Terminal and Joint Terminal Maintenance Facilities for Motor Freight Transportation	49221	Local Messengers and Local Delivery	one-to-one
4311	United States Postal Service	49111	Postal Service	one-to-one
4412	Deep Sea Foreign Transportation of Freight	48311	Deep Sea, Coastal, and Great Lakes Water Transportation	many-to-one3 SIC codes share this NAICS code
4424	Deep Sea Domestic Transportation of Freight	48311	Deep Sea, Coastal, and Great Lakes Water Transportation	many-to-one3 SIC codes share this NAICS code
4481	Deep Sea Transportation of Passengers, Except by Ferry	48321	Inland Water Transportation	many-to-one2 SIC codes share this NAICS code
4482	Ferries	48321	Inland Water Transportation	many-to-one2 SIC codes share this NAICS code
4489	Water Transportation of Passengers, Not Elsewhere Classified	48311	Deep Sea, Coastal, and Great Lakes Water Transportation	many-to-one3 SIC codes share this NAICS code
4491	Marine Cargo Handling	48831	Port and Harbor Operations	one-to-one
4492	Towing and Tugboat Services	48839	Other Support Activities for Water Transportation	many-to-one2 SIC codes share this NAICS code
4493	Marinas	81293	Parking Lots and Garages	one-to-one
4499	Water Transportation Services, Not Elsewhere Classified	48839	Other Support Activities for Water Transportation	many-to-one2 SIC codes share this NAICS code
4512	Air Transportation, Scheduled	48111	Scheduled Air Transportation	one-to-one
4513	Air Courier Services	49211	Couriers and Express Delivery Services	many-to-one2 SIC codes share this NAICS code
4522	Air Transportation, Nonscheduled	48121	Nonscheduled Chartered Passenger Air Transportation	one-to-one
4581	Airports, Flying Fields, and Airport Terminal Services	48819	Other Support Activities for Air Transportation	one-to-one
4612	Crude Petroleum Pipelines	48611	Pipeline Transportation of Crude Oil	one-to-one
4613	Refined Petroleum Pipelines	48691	Other Pipeline Transportation	many-to-one2 SIC codes share this NAICS code
4619	Pipelines, Not Elsewhere Classified	48691	Other Pipeline Transportation	many-to-one2 SIC codes share this NAICS code
4724	Travel Agencies	56151	Travel Agencies	one-to-one
4725	Tour Operators	56152	Tour Operators	one-to-one
4729	Arrangement of Passenger Transportation, Not Elsewhere Classified	48599	Other Transit and Ground Passenger Transportation	one-to-one
4731	Arrangement of Transportation of Freight and Cargo	48849	Other Support Activities for Road Transportation	many-to-one4 SIC codes share this NAICS code
4741	Rental of Railroad Cars	48821	Support Activities for Rail Transportation	one-to-one
4783	Packing and Crating	48849	Other Support Activities for Road Transportation	many-to-one4 SIC codes share this NAICS code
4785	Fixed Facilities and Inspection and Weighing Services for Motor Vehicle Transportation	48849	Other Support Activities for Road Transportation	many-to-one4 SIC codes share this NAICS code
4789	Transportation Services, Not Elsewhere Classified	48849	Other Support Activities for Road Transportation	many-to-one4 SIC codes share this NAICS code
4812	Radiotelephone Communications	51711	Wired Telecommunications Carriers	many-to-one3 SIC codes share this NAICS code
4813	Telephone Communications, Except Radiotelephone	51711	Wired Telecommunications Carriers	many-to-one3 SIC codes share this NAICS code
4822	Telegraph and Other Message Communications	51711	Wired Telecommunications Carriers	many-to-one3 SIC codes share this NAICS code
4832	Radio Broadcasting Stations	51512no page — parent 51	Radio Broadcasting Stations	one-to-one
4833	Television Broadcasting Stations	51521no page — parent 51	Television Broadcasting Stations	one-to-one
4841	Cable and Other Pay Television Services	51511no page — parent 51	Cable and Other Pay Television Services	one-to-one
4899	Communications Services, Not Elsewhere Classified	51799no page — parent 517	Communications Services, Not Elsewhere Classified	one-to-one
4911	Electric Services	22111	Electric Power Generation	many-to-one3 SIC codes share this NAICS code
4922	Natural Gas Transmission	22112	Electric Power Transmission, Control, and Distribution	many-to-one3 SIC codes share this NAICS code
4923	Natural Gas Transmission and Distribution	22112	Electric Power Transmission, Control, and Distribution	many-to-one3 SIC codes share this NAICS code
4924	Natural Gas Distribution	22112	Electric Power Transmission, Control, and Distribution	many-to-one3 SIC codes share this NAICS code
4925	Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or Distribution	22113no page — parent 2211	Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or Distribution	one-to-one
4931	Electric and Other Services Combined	22111	Electric Power Generation	many-to-one3 SIC codes share this NAICS code
4932	Gas and Other Services Combined	22111	Electric Power Generation	many-to-one3 SIC codes share this NAICS code
4939	Combination Utilities, Not Elsewhere Classified	22119no page — parent 2211	Combination Utilities, Not Elsewhere Classified	one-to-one
4941	Water Supply	22131	Water Supply and Irrigation Systems	one-to-one
4952	Sewerage Systems	22132	Sewage Treatment Facilities	one-to-one
4953	Refuse Systems	56292	Materials Recovery Facilities	one-to-one
4959	Sanitary Services, Not Elsewhere Classified	22139no page — parent 2213	Sanitary Services, Not Elsewhere Classified	one-to-one
4961	Steam and Air-Conditioning Supply	22133	Steam and Air-Conditioning Supply	one-to-one
4971	Irrigation Systems	22141no page — parent 221	Irrigation Systems	one-to-one
5012	Automobiles and Other Motor Vehicles	42311	Automobile and Other Motor Vehicle Merchant Wholesalers	many-to-one4 SIC codes share this NAICS code
5013	Motor Vehicle Supplies and New Parts	42311	Automobile and Other Motor Vehicle Merchant Wholesalers	many-to-one4 SIC codes share this NAICS code
5014	Tires and Tubes	42311	Automobile and Other Motor Vehicle Merchant Wholesalers	many-to-one4 SIC codes share this NAICS code
5015	Motor Vehicle Parts, Used	42311	Automobile and Other Motor Vehicle Merchant Wholesalers	many-to-one4 SIC codes share this NAICS code
5021	Furniture	42321	Furniture Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5023	Home Furnishings	42321	Furniture Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5031	Lumber, Plywood, Millwork, and Wood Panels	42331	Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers	one-to-one
5032	Brick, Stone, and Related Construction Materials	42332	Brick, Stone, and Related Construction Material Merchant Wholesalers	one-to-one
5033	Roofing, Siding, and Insulation Materials	42333	Roofing, Siding, and Insulation Material Merchant Wholesalers	one-to-one
5039	Construction Materials, Not Elsewhere Classified	42339	Other Construction Material Merchant Wholesalers	one-to-one
5043	Photographic Equipment and Supplies	42346	Ophthalmic Goods Merchant Wholesalers	one-to-one
5044	Office Equipment	42342	Office Equipment Merchant Wholesalers	one-to-one
5045	Computers and Computer Peripheral Equipment and Software	42343	Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	one-to-one
5046	Commercial Equipment, Not Elsewhere Classified	42349no page — parent 4234	Commercial Equipment, Not Elsewhere Classified	many-to-one3 SIC codes share this NAICS code
5047	Medical, Dental, and Hospital Equipment and Supplies	42345	Medical and Hospital Equipment and Supplies Merchant Wholesalers	one-to-one
5048	Ophthalmic Goods	42349no page — parent 4234	Ophthalmic Goods	many-to-one3 SIC codes share this NAICS code
5049	Professional Equipment and Supplies, Not Elsewhere Classified	42349no page — parent 4234	Professional Equipment and Supplies, Not Elsewhere Classified	many-to-one3 SIC codes share this NAICS code
5051	Metals Service Centers and Offices	42351	Metal Service Centers and Other Metal Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5052	Coal and Other Minerals and Ores	42351	Metal Service Centers and Other Metal Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5063	Electrical Apparatus and Equipment Wiring Supplies, and Construction Materials	42361	Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers	one-to-one
5064	Electrical Appliances, Television and Radio Sets	42362	Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers	one-to-one
5065	Electronic Parts and Equipment, Not Elsewhere Classified	42369no page — parent 4236	Electronic Parts and Equipment, Not Elsewhere Classified	one-to-one
5072	Hardware	42371	Hardware Merchant Wholesalers	one-to-one
5074	Plumbing and Heating Equipment and Supplies (Hydronics)	42372	Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers	one-to-one
5075	Warm Air Heating and Air-Conditioning Equipment and Supplies	42373	Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers	one-to-one
5078	Refrigeration Equipment and Supplies	42379no page — parent 4237	Refrigeration Equipment and Supplies	one-to-one
5082	Construction and Mining (Except Petroleum) Machinery and Equipment	42381	Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers	one-to-one
5083	Farm and Garden Machinery and Equipment	42382	Farm and Garden Machinery and Equipment Merchant Wholesalers	one-to-one
5084	Industrial Machinery and Equipment	42383	Industrial and Personal Service Paper Merchant Wholesalers	one-to-one
5085	Industrial Supplies	42384	Industrial Machinery and Equipment Merchant Wholesalers	one-to-one
5087	Service Establishment Equipment and Supplies	42386	Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers	one-to-one
5088	Transportation Equipment and Supplies, Except Motor Vehicles	42389	Other Industrial Machinery and Equipment Merchant Wholesalers	one-to-one
5091	Sporting and Recreational Goods and Supplies	42391	Sporting and Recreational Goods and Supplies Merchant Wholesalers	one-to-one
5092	Toys and Hobby Goods and Supplies	42392	Toy and Hobby Goods and Supplies Merchant Wholesalers	one-to-one
5093	Scrap and Waste Materials	42393	Recyclable Material Merchant Wholesalers	one-to-one
5094	Jewelry, Watches, Precious Stones, and Precious Metals	42399	Other Miscellaneous Durable Goods Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5099	Durable Goods, Not Elsewhere Classified	42399	Other Miscellaneous Durable Goods Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5111	Printing and Writing Paper	42411	Printing and Writing Paper Merchant Wholesalers	one-to-one
5112	Stationery and Office Supplies	42412	Stationery and Office Supplies Merchant Wholesalers	one-to-one
5113	Industrial and Personal Service Paper	42413	Industrial and Personal Service Paper Merchant Wholesalers	one-to-one
5122	Drugs, Drug Proprietaries, and Druggists' Sundries	42421	Drugs and Druggists' Sundries Merchant Wholesalers	one-to-one
5131	Piece Goods, Notions, and Other Dry Goods	42431	Piece Goods, Notions, and Other Dry Goods Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5136	Men's and Boys' Clothing and Furnishings	42431	Piece Goods, Notions, and Other Dry Goods Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5137	Women's, Children's, and Infants' Clothing and Accessories	42432	Men's and Boys' Clothing and Furnishings Merchant Wholesalers	one-to-one
5139	Footwear	42439no page — parent 4243	Footwear	one-to-one
5141	Groceries, General Line	42441	General Line Grocery Merchant Wholesalers	one-to-one
5142	Packaged Frozen Foods	42442	Packaged Frozen Food Merchant Wholesalers	one-to-one
5143	Dairy Products, Except Dried or Canned	42443	Dairy Product (except Dried or Canned) Merchant Wholesalers	one-to-one
5144	Poultry and Poultry Products	42444	Poultry and Poultry Product Merchant Wholesalers	one-to-one
5145	Confectionery	42445	Confectionery Merchant Wholesalers	one-to-one
5146	Fish and Seafoods	42446	Fish and Seafood Merchant Wholesalers	one-to-one
5147	Meats and Meat Products	42449	Other Grocery and Related Products Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5148	Fresh Fruits and Vegetables	42448	Fresh Fruit and Vegetable Merchant Wholesalers	one-to-one
5149	Groceries and Related Products, Not Elsewhere Classified	42449	Other Grocery and Related Products Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5159	Farm-Product Raw Materials, Not Elsewhere Classified	42459	Other Farm Product Raw Material Merchant Wholesalers	one-to-one
5162	Plastics Materials and Basic Forms and Shapes	42469	Other Chemical and Allied Products Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5169	Chemicals and Allied Products, Not Elsewhere Classified	42469	Other Chemical and Allied Products Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5171	Petroleum Bulk Stations and Terminals	42471	Petroleum Bulk Stations and Terminals	one-to-one
5172	Petroleum and Petroleum Products Wholesalers, Except Bulk Stations and Terminals	42479no page — parent 4247	Petroleum and Petroleum Products Wholesalers, Except Bulk Stations and Terminals	one-to-one
5191	Farm Supplies	42491	Farm Supplies Merchant Wholesalers	one-to-one
5192	Books, Periodicals, and Newspapers	42492	Book, Periodical, and Newspaper Merchant Wholesalers	one-to-one
5193	Flowers, Nursery Stock, and Florists' Supplies	42493	Flower, Nursery Stock, and Florists' Supplies Merchant Wholesalers	one-to-one
5194	Tobacco and Tobacco Products	42494	Tobacco and Tobacco Product Merchant Wholesalers	one-to-one
5198	Paints, Varnishes, and Supplies	42499	Other Miscellaneous Nondurable Goods Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5199	Nondurable Goods, Not Elsewhere Classified	42499	Other Miscellaneous Nondurable Goods Merchant Wholesalers	many-to-one2 SIC codes share this NAICS code
5211	Lumber and Other Building Materials Dealers	44411no page — parent 4441	Lumber and Other Building Materials Dealers	many-to-one2 SIC codes share this NAICS code
5251	Hardware Stores	44411no page — parent 4441	Hardware Stores	many-to-one2 SIC codes share this NAICS code
5261	Retail Nurseries, Lawn and Garden Supply Stores	45111no page — parent 44-45	Retail Nurseries, Lawn and Garden Supply Stores	many-to-one2 SIC codes share this NAICS code
5271	Mobile Home Dealers	45391no page — parent 44-45	Mobile Home Dealers	one-to-one
5311	Department Stores	45211no page — parent 44-45	Department Stores	one-to-one
5331	Variety Stores	45299no page — parent 44-45	Variety Stores	many-to-one2 SIC codes share this NAICS code
5399	Miscellaneous General Merchandise Stores	45299no page — parent 44-45	Miscellaneous General Merchandise Stores	many-to-one2 SIC codes share this NAICS code
5411	Grocery Stores	44511	Supermarkets and Other Grocery Retailers (except Convenience Retailers)	one-to-one
5421	Meat and Fish (Seafood) Markets, Including Freezer Provisioners	44521	Meat Retailers	many-to-one3 SIC codes share this NAICS code
5431	Fruit and Vegetable Markets	44523	Fruit and Vegetable Retailers	one-to-one
5441	Candy, Nut, and Confectionery Stores	44522	Fish and Seafood Retailers	one-to-one
5451	Dairy Products Stores	44521	Meat Retailers	many-to-one3 SIC codes share this NAICS code
5461	Retail Bakeries	31181	Bread and Bakery Product Manufacturing	many-to-one2 SIC codes share this NAICS code
5499	Miscellaneous Food Stores	44529	Other Specialty Food Retailers	one-to-one
5511	Motor Vehicle Dealers (New and Used)	44111	New Car Dealers	many-to-one2 SIC codes share this NAICS code
5521	Motor Vehicle Dealers (Used Only)	44111	New Car Dealers	many-to-one2 SIC codes share this NAICS code
5531	Auto and Home Supply Stores	44131	Automotive Parts and Accessories Retailers	one-to-one
5541	Gasoline Service Stations	44711no page — parent 44-45	Gasoline Service Stations	many-to-one3 SIC codes share this NAICS code
5551	Boat Dealers	44121	Recreational Vehicle Dealers	many-to-one2 SIC codes share this NAICS code
5561	Recreational Vehicle Dealers	44121	Recreational Vehicle Dealers	many-to-one2 SIC codes share this NAICS code
5571	Motorcycle Dealers	44122	Motorcycle, ATV, and All Other Motor Vehicle Dealers	one-to-one
5599	Automotive Dealers, Not Elsewhere Classified	44129no page — parent 4412	Automotive Dealers, Not Elsewhere Classified	one-to-one
5611	Men's and Boys' Clothing and Accessory Stores	44811no page — parent 44-45	Men's and Boys' Clothing and Accessory Stores	one-to-one
5621	Women's Clothing Stores	44812no page — parent 44-45	Women's Clothing Stores	one-to-one
5641	Children's and Infants' Wear Stores	44819no page — parent 44-45	Children's and Infants' Wear Stores	many-to-one4 SIC codes share this NAICS code
5651	Family Clothing Stores	44819no page — parent 44-45	Family Clothing Stores	many-to-one4 SIC codes share this NAICS code
5661	Shoe Stores	44821no page — parent 44-45	Shoe Stores	one-to-one
5699	Miscellaneous Apparel and Accessory Stores	44819no page — parent 44-45	Miscellaneous Apparel and Accessory Stores	many-to-one4 SIC codes share this NAICS code
5712	Furniture Stores	44211no page — parent 44-45	Furniture Stores	many-to-one2 SIC codes share this NAICS code
5713	Floor Covering Stores	44221no page — parent 44-45	Floor Covering Stores	one-to-one
5714	Drapery, Curtain, and Upholstery Stores	44211no page — parent 44-45	Drapery, Curtain, and Upholstery Stores	many-to-one2 SIC codes share this NAICS code
5719	Miscellaneous Home Furnishings Stores	44219no page — parent 44-45	Miscellaneous Home Furnishings Stores	one-to-one
5722	Household Appliance Stores	44311no page — parent 44-45	Household Appliance Stores	many-to-one2 SIC codes share this NAICS code
5731	Radio, Television, and Consumer Electronics Stores	44311no page — parent 44-45	Radio, Television, and Consumer Electronics Stores	many-to-one2 SIC codes share this NAICS code
5734	Computer and Computer Software Stores	44312no page — parent 44-45	Computer and Computer Software Stores	one-to-one
5735	Record and Prerecorded Tape Stores	45122no page — parent 44-45	Record and Prerecorded Tape Stores	many-to-one3 SIC codes share this NAICS code
5736	Musical Instrument Stores	45122no page — parent 44-45	Musical Instrument Stores	many-to-one3 SIC codes share this NAICS code
5812	Eating Places	72211no page — parent 722	Eating Places	one-to-one
5813	Drinking Places (Alcoholic Beverages)	72241	Drinking Places (Alcoholic Beverages)	one-to-one
5912	Drug Stores and Proprietary Stores	44611no page — parent 44-45	Drug Stores and Proprietary Stores	one-to-one
5921	Liquor Stores	44521	Meat Retailers	many-to-one3 SIC codes share this NAICS code
5941	Sporting Goods Stores and Bicycle Shops	45111no page — parent 44-45	Sporting Goods Stores and Bicycle Shops	many-to-one2 SIC codes share this NAICS code
5942	Book Stores	45121no page — parent 44-45	Book Stores	one-to-one
5943	Stationery Stores	45322no page — parent 44-45	Stationery Stores	one-to-one
5944	Jewelry Stores	44831no page — parent 44-45	Jewelry Stores	one-to-one
5945	Hobby, Toy, and Game Shops	45112no page — parent 44-45	Hobby, Toy, and Game Shops	one-to-one
5946	Camera and Photographic Supply Stores	44999no page — parent 449	Camera and Photographic Supply Stores	one-to-one
5947	Gift, Novelty, and Souvenir Shops	81219	Other Personal Care Services	many-to-one3 SIC codes share this NAICS code
5948	Luggage and Leather Goods Stores	44819no page — parent 44-45	Luggage and Leather Goods Stores	many-to-one4 SIC codes share this NAICS code
5961	Catalog and Mail-Order Houses	45411no page — parent 44-45	Catalog and Mail-Order Houses	many-to-one4 SIC codes share this NAICS code
5962	Automatic Merchandising Machine Operators	45411no page — parent 44-45	Automatic Merchandising Machine Operators	many-to-one4 SIC codes share this NAICS code
5963	Direct Selling Establishments	45411no page — parent 44-45	Direct Selling Establishments	many-to-one4 SIC codes share this NAICS code
5983	Fuel Oil Dealers	44711no page — parent 44-45	Fuel Oil Dealers	many-to-one3 SIC codes share this NAICS code
5984	Liquefied Petroleum Gas (Bottled Gas) Dealers	44711no page — parent 44-45	Liquefied Petroleum Gas (Bottled Gas) Dealers	many-to-one3 SIC codes share this NAICS code
5992	Florists	45411no page — parent 44-45	Florists	many-to-one4 SIC codes share this NAICS code
5993	Tobacco Stores and Stands	45991	Florists	one-to-one
5994	News Dealers and Newsstands	45122no page — parent 44-45	News Dealers and Newsstands	many-to-one3 SIC codes share this NAICS code
5995	Optical Goods Stores	44229no page — parent 44-45	Optical Goods Stores	one-to-one
5999	Miscellaneous Retail Stores, Not Elsewhere Classified	45399no page — parent 44-45	Miscellaneous Retail Stores, Not Elsewhere Classified	one-to-one
6011	Federal Reserve Banks	52111	Monetary Authorities — Central Bank	many-to-one2 SIC codes share this NAICS code
6019	Central Reserve Depository Institutions, Not Elsewhere Classified	52119no page — parent 5211	Central Reserve Depository Institutions, Not Elsewhere Classified	one-to-one
6021	National Commercial Banks	52111	Monetary Authorities — Central Bank	many-to-one2 SIC codes share this NAICS code
6022	State Commercial Banks	52219	Other Depository Credit Intermediation	many-to-one8 SIC codes share this NAICS code
6029	Commercial Banks, Not Elsewhere Classified	52219	Other Depository Credit Intermediation	many-to-one8 SIC codes share this NAICS code
6035	Savings Institutions, Federally Chartered	52219	Other Depository Credit Intermediation	many-to-one8 SIC codes share this NAICS code
6036	Savings Institutions, Not Federally Chartered	52219	Other Depository Credit Intermediation	many-to-one8 SIC codes share this NAICS code
6061	Credit Unions, Federally Chartered	52219	Other Depository Credit Intermediation	many-to-one8 SIC codes share this NAICS code
6062	Credit Unions, Not Federally Chartered	52219	Other Depository Credit Intermediation	many-to-one8 SIC codes share this NAICS code
6099	Functions Related to Depository Banking, Not Elsewhere Classified	52219	Other Depository Credit Intermediation	many-to-one8 SIC codes share this NAICS code
6141	Personal Credit Institutions	52291no page — parent 522	Personal Credit Institutions	many-to-one2 SIC codes share this NAICS code
6153	Short-Term Business Credit Institutions, Except Agricultural	52221	Credit Card Issuing	one-to-one
6159	Miscellaneous Business Credit Institutions	52299no page — parent 522	Miscellaneous Business Credit Institutions	one-to-one
6162	Mortgage Bankers and Loan Correspondents	52291no page — parent 522	Mortgage Bankers and Loan Correspondents	many-to-one2 SIC codes share this NAICS code
6163	Loan Brokers	52219	Other Depository Credit Intermediation	many-to-one8 SIC codes share this NAICS code
6211	Security Brokers, Dealers, and Flotation Companies	52311	Investment Banking and Securities Dealing	one-to-one
6221	Commodity Contracts Brokers and Dealers	52321	Securities and Commodity Exchanges	one-to-one
6231	Security and Commodity Exchanges	52391	Miscellaneous Intermediation	one-to-one
6282	Investment Advice	52392	Portfolio Management	one-to-one
6311	Life Insurance	52411	Direct Life, Health, and Medical Insurance Carriers	one-to-one
6321	Accident and Health Insurance	52412	Direct Insurance (except Life, Health, and Medical) Carriers	one-to-one
6324	Hospital and Medical Service Plans	52413	Reinsurance Carriers	one-to-one
6331	Fire, Marine, and Casualty Insurance	52421	Insurance Agencies and Brokerages	many-to-one4 SIC codes share this NAICS code
6351	Surety Insurance	52421	Insurance Agencies and Brokerages	many-to-one4 SIC codes share this NAICS code
6361	Title Insurance	52421	Insurance Agencies and Brokerages	many-to-one4 SIC codes share this NAICS code
6371	Pension, Health, and Welfare Funds	52421	Insurance Agencies and Brokerages	many-to-one4 SIC codes share this NAICS code
6399	Insurance Carriers, Not Elsewhere Classified	52429	Other Insurance Related Activities	many-to-one2 SIC codes share this NAICS code
6411	Insurance Agents, Brokers, and Service	52429	Other Insurance Related Activities	many-to-one2 SIC codes share this NAICS code
6512	Operators of Nonresidential Buildings	53111	Lessors of Residential Buildings and Dwellings	many-to-one3 SIC codes share this NAICS code
6513	Operators of Apartment Buildings	53111	Lessors of Residential Buildings and Dwellings	many-to-one3 SIC codes share this NAICS code
6514	Operators of Dwellings Other Than Apartment Buildings	53111	Lessors of Residential Buildings and Dwellings	many-to-one3 SIC codes share this NAICS code
6515	Operators of Residential Mobile Home Sites	53191no page — parent 531	Operators of Residential Mobile Home Sites	one-to-one
6531	Real Estate Agents and Managers	53121	Offices of Real Estate Agents and Brokers	one-to-one
6541	Title Abstract Offices	54191	Marketing Research and Public Opinion Polling	one-to-one
6552	Land Subdividers and Developers, Except Cemeteries	23711	Water and Sewer Line and Related Structures Construction	many-to-one2 SIC codes share this NAICS code
6719	Offices of Holding Companies, Not Elsewhere Classified	55111	Management of Companies and Enterprises	one-to-one
6726	Unit Investment Trusts, Face-Amount Certificate Offices, and Closed-End Management Investment Offices	52599	Other Financial Vehicles	many-to-one5 SIC codes share this NAICS code
6732	Educational, Religious, and Charitable Trusts	52591	Open-End Investment Funds (Mutual Funds)	one-to-one
6733	Trusts, Except Educational, Religious, and Charitable	52399	All Other Financial Investment Activities	one-to-one
6792	Oil Royalty Traders	52599	Other Financial Vehicles	many-to-one5 SIC codes share this NAICS code
6794	Patent Owners and Lessors	52599	Other Financial Vehicles	many-to-one5 SIC codes share this NAICS code
6798	Real Estate Investment Trusts	52599	Other Financial Vehicles	many-to-one5 SIC codes share this NAICS code
6799	Investors, Not Elsewhere Classified	52599	Other Financial Vehicles	many-to-one5 SIC codes share this NAICS code
7011	Hotels and Motels	72111	Hotels (except Casino Hotels) and Motels	one-to-one
7021	Rooming and Boarding Houses	72131	Rooming and Boarding Houses, Dormitories, and Workers' Camps	many-to-one2 SIC codes share this NAICS code
7041	Organization Hotels and Lodging Houses, on Membership Basis	72131	Rooming and Boarding Houses, Dormitories, and Workers' Camps	many-to-one2 SIC codes share this NAICS code
7211	Power Laundries, Family and Commercial	81211	Hair, Nail, and Skin Care Services	many-to-one9 SIC codes share this NAICS code
7212	Garment Pressing, and Agents for Laundries and Drycleaners	81211	Hair, Nail, and Skin Care Services	many-to-one9 SIC codes share this NAICS code
7213	Linen Supply	81211	Hair, Nail, and Skin Care Services	many-to-one9 SIC codes share this NAICS code
7215	Coin-Operated Laundries and Drycleaning	81211	Hair, Nail, and Skin Care Services	many-to-one9 SIC codes share this NAICS code
7216	Drycleaning Plants, Except Rug Cleaning	81211	Hair, Nail, and Skin Care Services	many-to-one9 SIC codes share this NAICS code
7217	Carpet and Upholstery Cleaning	56174	Carpet and Upholstery Cleaning Services	many-to-one4 SIC codes share this NAICS code
7218	Industrial Launderers	56174	Carpet and Upholstery Cleaning Services	many-to-one4 SIC codes share this NAICS code
7219	Laundry and Garment Services, Not Elsewhere Classified	81219	Other Personal Care Services	many-to-one3 SIC codes share this NAICS code
7221	Photographic Studios, Portrait	54192	Photography Studios, Portrait	one-to-one
7231	Beauty Shops	81211	Hair, Nail, and Skin Care Services	many-to-one9 SIC codes share this NAICS code
7241	Barber Shops	81211	Hair, Nail, and Skin Care Services	many-to-one9 SIC codes share this NAICS code
7251	Shoe Repair Shops and Shoeshine Parlors	81211	Hair, Nail, and Skin Care Services	many-to-one9 SIC codes share this NAICS code
7261	Funeral Service and Crematories	81222	Cemeteries and Crematoria	one-to-one
7291	Tax Return Preparation Services	54121	Accounting, Tax Preparation, Bookkeeping, and Payroll Services	many-to-one2 SIC codes share this NAICS code
7299	Miscellaneous Personal Services, Not Elsewhere Classified	81219	Other Personal Care Services	many-to-one3 SIC codes share this NAICS code
7311	Advertising Agencies	54181	Advertising Agencies	many-to-one2 SIC codes share this NAICS code
7312	Outdoor Advertising Services	54185	Indoor and Outdoor Display Advertising	one-to-one
7313	Radio, Television, and Publishers' Advertising Representatives	54189	Other Services Related to Advertising	many-to-one2 SIC codes share this NAICS code
7319	Advertising, Not Elsewhere Classified	54187	Advertising Material Distribution Services	one-to-one
7322	Adjustment and Collection Services	56144	Collection Agencies	many-to-one2 SIC codes share this NAICS code
7323	Credit Reporting Services	56144	Collection Agencies	many-to-one2 SIC codes share this NAICS code
7331	Direct Mail Advertising Services	56141	Document Preparation Services	many-to-one2 SIC codes share this NAICS code
7334	Photocopying and Duplicating Services	56143	Business Service Centers	one-to-one
7335	Commercial Photography	53242	Office Machinery and Equipment Rental and Leasing	many-to-one2 SIC codes share this NAICS code
7336	Commercial Art and Graphic Design	54181	Advertising Agencies	many-to-one2 SIC codes share this NAICS code
7338	Secretarial and Court Reporting Services	56141	Document Preparation Services	many-to-one2 SIC codes share this NAICS code
7342	Disinfecting and Pest Control Services	56174	Carpet and Upholstery Cleaning Services	many-to-one4 SIC codes share this NAICS code
7349	Building Cleaning and Maintenance Services, Not Elsewhere Classified	56174	Carpet and Upholstery Cleaning Services	many-to-one4 SIC codes share this NAICS code
7359	Equipment Rental and Leasing, Not Elsewhere Classified	53249	Other Commercial and Industrial Machinery and Equipment Rental and Leasing	one-to-one
7361	Employment Agencies	56131	Employment Placement Agencies and Executive Search Services	one-to-one
7363	Help Supply Services	56132	Temporary Help Services	one-to-one
7371	Computer Programming Services	51811no page — parent 518	Computer Programming Services	one-to-one
7372	Prepackaged Software	51121no page — parent 51	Prepackaged Software	one-to-one
7373	Computer Integrated Systems Design	51821	Computing Infrastructure Providers, Data Processing, and Related Services	many-to-one5 SIC codes share this NAICS code
7374	Computer Processing and Data Preparation and Processing Services	51821	Computing Infrastructure Providers, Data Processing, and Related Services	many-to-one5 SIC codes share this NAICS code
7375	Information Retrieval Services	51821	Computing Infrastructure Providers, Data Processing, and Related Services	many-to-one5 SIC codes share this NAICS code
7376	Computer Facilities Management Services	51821	Computing Infrastructure Providers, Data Processing, and Related Services	many-to-one5 SIC codes share this NAICS code
7377	Computer Rental and Leasing	53242	Office Machinery and Equipment Rental and Leasing	many-to-one2 SIC codes share this NAICS code
7378	Computer Maintenance and Repair	81143	Footwear and Leather Goods Repair	one-to-one
7379	Computer Related Services, Not Elsewhere Classified	51821	Computing Infrastructure Providers, Data Processing, and Related Services	many-to-one5 SIC codes share this NAICS code
7381	Detective, Guard, and Armored Car Services	56161	Investigation, Guard, and Armored Car Services	many-to-one2 SIC codes share this NAICS code
7382	Security Systems Services	56162	Security Systems Services (except Locksmiths)	one-to-one
7383	News Syndicates	56161	Investigation, Guard, and Armored Car Services	many-to-one2 SIC codes share this NAICS code
7389	Business Services, Not Elsewhere Classified	56199	All Other Support Services	one-to-one
7514	Passenger Car Rental	53211	Passenger Car Rental and Leasing	many-to-one2 SIC codes share this NAICS code
7515	Passenger Car Leasing	53211	Passenger Car Rental and Leasing	many-to-one2 SIC codes share this NAICS code
7521	Automobile Parking	81211	Hair, Nail, and Skin Care Services	many-to-one9 SIC codes share this NAICS code
7532	Top, Body, and Upholstery Repair Shops and Paint Shops	81111	General Automotive Repair	many-to-one6 SIC codes share this NAICS code
7533	Automotive Exhaust System Repair Shops	81111	General Automotive Repair	many-to-one6 SIC codes share this NAICS code
7534	Tire Retreading and Repair Shops	81111	General Automotive Repair	many-to-one6 SIC codes share this NAICS code
7536	Automotive Glass Replacement Shops	81111	General Automotive Repair	many-to-one6 SIC codes share this NAICS code
7537	Automotive Transmission Repair Shops	81111	General Automotive Repair	many-to-one6 SIC codes share this NAICS code
7538	General Automotive Repair Shops	81111	General Automotive Repair	many-to-one6 SIC codes share this NAICS code
7539	Automotive Repair Shops, Not Elsewhere Classified	81119	Automotive Body, Paint, Interior, and Glass Repair	one-to-one
7542	Carwashes	81192no page — parent 811	Carwashes	one-to-one
7549	Automotive Services, Except Repair and Carwashes	81199no page — parent 811	Automotive Services, Except Repair and Carwashes	one-to-one
7622	Radio and Television Repair Shops	81131	Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	many-to-one4 SIC codes share this NAICS code
7629	Electrical and Electronic Repair Shops, Not Elsewhere Classified	81133no page — parent 8113	Electrical and Electronic Repair Shops, Not Elsewhere Classified	one-to-one
7631	Watch, Clock, and Jewelry Repair	81131	Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	many-to-one4 SIC codes share this NAICS code
7641	Reupholstery and Furniture Repair	81131	Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	many-to-one4 SIC codes share this NAICS code
7692	Welding Repair	81311	Religious Organizations	many-to-one3 SIC codes share this NAICS code
7694	Armature Rewinding Shops	81131	Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	many-to-one4 SIC codes share this NAICS code
7699	Repair Shops and Related Services, Not Elsewhere Classified	81139no page — parent 8113	Repair Shops and Related Services, Not Elsewhere Classified	one-to-one
7812	Motion Picture and Video Tape Production	51211	Motion Picture and Video Production	one-to-one
7819	Services Allied to Motion Picture Production	51219	Post-Production Services and Other Motion Picture and Video Industries	many-to-one2 SIC codes share this NAICS code
7822	Motion Picture and Video Tape Distribution	51219	Post-Production Services and Other Motion Picture and Video Industries	many-to-one2 SIC codes share this NAICS code
7832	Motion Picture Theaters, Except Drive-In	51213	Motion Picture and Video Exhibition	many-to-one2 SIC codes share this NAICS code
7833	Drive-In Motion Picture Theaters	51213	Motion Picture and Video Exhibition	many-to-one2 SIC codes share this NAICS code
7841	Video Tape Rental	53231	General Rental Centers	one-to-one
7911	Dance Studios, Schools, and Halls	71321	Casinos (except Casino Hotels)	one-to-one
7922	Theatrical Producers (Except Motion Picture) and Miscellaneous Theatrical Services	71311	Amusement and Theme Parks	one-to-one
7929	Bands, Orchestras, Actors, and Other Entertainers and Entertainment Groups	71319no page — parent 7131	Bands, Orchestras, Actors, and Other Entertainers and Entertainment Groups	one-to-one
7933	Bowling Centers	71399	All Other Amusement and Recreation Industries	many-to-one3 SIC codes share this NAICS code
7941	Professional Sports Clubs and Promoters	71211	Museums	many-to-one2 SIC codes share this NAICS code
7948	Racing, Including Track Operation	71212	Historical Sites	one-to-one
7991	Physical Fitness Facilities	71394	Fitness and Recreational Sports Centers	many-to-one2 SIC codes share this NAICS code
7992	Public Golf Courses	71392	Skiing Facilities	one-to-one
7993	Coin-Operated Amusement Devices	71399	All Other Amusement and Recreation Industries	many-to-one3 SIC codes share this NAICS code
7996	Amusement Parks	71131	Promoters of Performing Arts, Sports, and Similar Events with Facilities	one-to-one
7997	Membership Sports and Recreation Clubs	71394	Fitness and Recreational Sports Centers	many-to-one2 SIC codes share this NAICS code
7999	Amusement and Recreation Services, Not Elsewhere Classified	71399	All Other Amusement and Recreation Industries	many-to-one3 SIC codes share this NAICS code
8011	Offices and Clinics of Doctors of Medicine	62111	Offices of Physicians (except Mental Health Specialists)	many-to-one2 SIC codes share this NAICS code
8021	Offices and Clinics of Dentists	62121	Offices of Dentists	one-to-one
8031	Offices and Clinics of Doctors of Osteopathy	62111	Offices of Physicians (except Mental Health Specialists)	many-to-one2 SIC codes share this NAICS code
8041	Offices and Clinics of Chiropractors	62131	Offices of Chiropractors	many-to-one3 SIC codes share this NAICS code
8042	Offices and Clinics of Optometrists	62131	Offices of Chiropractors	many-to-one3 SIC codes share this NAICS code
8043	Offices and Clinics of Podiatrists	62131	Offices of Chiropractors	many-to-one3 SIC codes share this NAICS code
8049	Offices and Clinics of Health Practitioners, Not Elsewhere Classified	62139	Offices of All Other Health Practitioners	one-to-one
8051	Skilled Nursing Care Facilities	62311	Nursing Care Facilities (Skilled Nursing Facilities)	one-to-one
8059	Nursing and Personal Care Facilities, Not Elsewhere Classified	62319no page — parent 6231	Nursing and Personal Care Facilities, Not Elsewhere Classified	one-to-one
8062	General Medical and Surgical Hospitals	62211	General Medical and Surgical Hospitals	one-to-one
8063	Psychiatric Hospitals	62221	Psychiatric and Substance Abuse Hospitals	one-to-one
8069	Specialty Hospitals, Except Psychiatric	62199	All Other Ambulatory Health Care Services	many-to-one2 SIC codes share this NAICS code
8071	Medical Laboratories	62151	Medical Laboratories	many-to-one2 SIC codes share this NAICS code
8072	Dental Laboratories	62151	Medical Laboratories	many-to-one2 SIC codes share this NAICS code
8082	Home Health Care Services	62161	Home Health Care Services	one-to-one
8099	Health and Allied Services, Not Elsewhere Classified	62199	All Other Ambulatory Health Care Services	many-to-one2 SIC codes share this NAICS code
8111	Legal Services	54111	Offices of Lawyers	one-to-one
8211	Elementary and Secondary Schools	61111	Elementary and Secondary Schools	one-to-one
8221	Colleges, Universities, and Professional Schools	61131	Colleges, Universities, and Professional Schools	many-to-one2 SIC codes share this NAICS code
8222	Junior Colleges and Technical Institutes	61131	Colleges, Universities, and Professional Schools	many-to-one2 SIC codes share this NAICS code
8231	Libraries	51912no page — parent 519	Libraries	one-to-one
8243	Data Processing Schools	61141	Business and Secretarial Schools	many-to-one2 SIC codes share this NAICS code
8244	Business and Secretarial Schools	61141	Business and Secretarial Schools	many-to-one2 SIC codes share this NAICS code
8249	Vocational Schools, Not Elsewhere Classified	61142	Computer Training	one-to-one
8299	Schools and Educational Services, Not Elsewhere Classified	61169	All Other Schools and Instruction	one-to-one
8322	Individual and Family Social Services	62411	Child and Youth Services	many-to-one2 SIC codes share this NAICS code
8331	Job Training and Vocational Rehabilitation Services	62421	Community Food Services	one-to-one
8351	Child Day Care Services	62441	Child Care Services	one-to-one
8361	Residential Care	62411	Child and Youth Services	many-to-one2 SIC codes share this NAICS code
8399	Social Services, Not Elsewhere Classified	62499no page — parent 624	Social Services, Not Elsewhere Classified	one-to-one
8412	Museums and Art Galleries	71211	Museums	many-to-one2 SIC codes share this NAICS code
8422	Arboreta and Botanical or Zoological Gardens	71213	Zoos and Botanical Gardens	one-to-one
8611	Business Associations	81391	Business Associations	many-to-one4 SIC codes share this NAICS code
8621	Professional Membership Organizations	81391	Business Associations	many-to-one4 SIC codes share this NAICS code
8631	Labor Unions and Similar Labor Organizations	81311	Religious Organizations	many-to-one3 SIC codes share this NAICS code
8641	Civic, Social, and Fraternal Associations	81341	Civic and Social Organizations	one-to-one
8651	Political Organizations	81391	Business Associations	many-to-one4 SIC codes share this NAICS code
8661	Religious Organizations	81311	Religious Organizations	many-to-one3 SIC codes share this NAICS code
8699	Membership Organizations, Not Elsewhere Classified	81391	Business Associations	many-to-one4 SIC codes share this NAICS code
8711	Engineering Services	54133	Engineering Services	one-to-one
8712	Architectural Services	54131	Architectural Services	one-to-one
8713	Surveying Services	54138	Interior Design Services	many-to-one2 SIC codes share this NAICS code
8721	Accounting, Auditing, and Bookkeeping Services	54121	Accounting, Tax Preparation, Bookkeeping, and Payroll Services	many-to-one2 SIC codes share this NAICS code
8731	Commercial Physical and Biological Research	54171	Research and Development in the Physical, Engineering, and Life Sciences	many-to-one3 SIC codes share this NAICS code
8732	Commercial Economic, Sociological, and Educational Research	54171	Research and Development in the Physical, Engineering, and Life Sciences	many-to-one3 SIC codes share this NAICS code
8733	Noncommercial Research Organizations	54171	Research and Development in the Physical, Engineering, and Life Sciences	many-to-one3 SIC codes share this NAICS code
8734	Testing Laboratories	54138	Interior Design Services	many-to-one2 SIC codes share this NAICS code
8741	Management Services	56111	Office Administrative Services	one-to-one
8742	Management Consulting Services	54161	Management Consulting Services	one-to-one
8743	Public Relations Services	54189	Other Services Related to Advertising	many-to-one2 SIC codes share this NAICS code
8744	Facilities Support Management Services	56121	Facilities Support Services	one-to-one
8748	Business Consulting Services, Not Elsewhere Classified	54199	All Other Professional, Scientific, and Technical Services	one-to-one
8811	Private Households	81411	Private Households	one-to-one
8999	Services, Not Elsewhere Classified	71219	Nature Parks and Other Similar Institutions	one-to-one
9111	Executive Offices	92111	Executive Offices	many-to-one2 SIC codes share this NAICS code
9121	Legislative Bodies	92111	Executive Offices	many-to-one2 SIC codes share this NAICS code
9131	Executive and Legislative Offices Combined	92211	Courts	many-to-one6 SIC codes share this NAICS code
9199	General Government, Not Elsewhere Classified	92119	Other General Government Support	one-to-one
9211	Courts	92211	Courts	many-to-one6 SIC codes share this NAICS code
9221	Police Protection	92211	Courts	many-to-one6 SIC codes share this NAICS code
9222	Legal Counsel and Prosecution	92211	Courts	many-to-one6 SIC codes share this NAICS code
9223	Correctional Institutions	92211	Courts	many-to-one6 SIC codes share this NAICS code
9224	Fire Protection	92211	Courts	many-to-one6 SIC codes share this NAICS code
9229	Public Order and Safety, Not Elsewhere Classified	92219no page — parent 9221	Public Order and Safety, Not Elsewhere Classified	one-to-one
9311	Public Finance, Taxation, and Monetary Policy	92113	Public Finance Activities	one-to-one
9411	Administration of Educational Programs	92311	Administration of Education Programs	one-to-one
9431	Administration of Public Health Programs	92312	Administration of Public Health Programs	one-to-one
9441	Administration of Social, Human Resource and Income Maintenance Programs	92313	Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Programs)	one-to-one
9451	Administration of Veterans' Affairs, Except Health and Insurance	92314no page — parent 9231	Administration of Veterans' Affairs, Except Health and Insurance	one-to-one
9511	Air and Water Resource and Solid Waste Management	92411	Administration of Air and Water Resource and Solid Waste Management Programs	many-to-one2 SIC codes share this NAICS code
9512	Land, Mineral, Wildlife, and Forest Conservation	92411	Administration of Air and Water Resource and Solid Waste Management Programs	many-to-one2 SIC codes share this NAICS code
9531	Administration of Housing Programs	92412	Administration of Conservation Programs	many-to-one2 SIC codes share this NAICS code
9532	Administration of Urban Planning and Community and Rural Development	92412	Administration of Conservation Programs	many-to-one2 SIC codes share this NAICS code
9611	Administration of General Economic Programs	92511	Administration of Housing Programs, Urban Planning, and Community Development	one-to-one
9621	Regulation and Administration of Transportation Programs	92512no page — parent 9251	Regulation and Administration of Transportation Programs	one-to-one
9631	Regulation and Administration of Communications, Electric, Gas, and Other Utilities	92521no page — parent 925	Regulation and Administration of Communications, Electric, Gas, and Other Utilities	one-to-one
9641	Regulation of Agricultural Marketing and Commodities	92522no page — parent 925	Regulation of Agricultural Marketing and Commodities	one-to-one
9651	Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors	92531no page — parent 925	Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors	one-to-one
9661	Space and Research and Technology	92611	Administration of General Economic Programs	one-to-one
9711	National Security	92811	National Security	one-to-one
9721	International Affairs	92812	International Affairs	one-to-one

0111SIC

Wheat

11114NAICS

Wheat Farming

one-to-one

0112SIC

Rice

11116NAICS

Rice Farming

one-to-one

0115SIC

Corn

11115NAICS

Corn Farming

one-to-one

0116SIC

Soybeans

11111NAICS

Soybean Farming

one-to-one

0119SIC

Cash Grains, Not Elsewhere Classified

11119NAICS

Other Grain Farming

one-to-one

0131SIC

Cotton

11192NAICS

Cotton Farming

one-to-one

0132SIC

Tobacco

11191NAICS

Tobacco Farming

one-to-one

0133SIC

Sugarcane and Sugar Beets

11193NAICS

Sugarcane Farming

one-to-one

0134SIC

Irish Potatoes

11219no page — parent 1121NAICS

Irish Potatoes

many-to-one2 SIC codes share this NAICS code

0139SIC

Field Crops, Except Cash Grains, Not Elsewhere Classified

11199NAICS

All Other Crop Farming

many-to-one2 SIC codes share this NAICS code

0161SIC

Vegetables and Melons

11219no page — parent 1121NAICS

Vegetables and Melons

many-to-one2 SIC codes share this NAICS code

0171SIC

Berry Crops

11133NAICS

Noncitrus Fruit and Tree Nut Farming

many-to-one5 SIC codes share this NAICS code

0172SIC

Grapes

11133NAICS

Noncitrus Fruit and Tree Nut Farming

many-to-one5 SIC codes share this NAICS code

0173SIC

Tree Nuts

11133NAICS

Noncitrus Fruit and Tree Nut Farming

many-to-one5 SIC codes share this NAICS code

0174SIC

Citrus Fruits

11133NAICS

Noncitrus Fruit and Tree Nut Farming

many-to-one5 SIC codes share this NAICS code

0175SIC

Deciduous Tree Fruits

11133NAICS

Noncitrus Fruit and Tree Nut Farming

many-to-one5 SIC codes share this NAICS code

0181SIC

Ornamental Floriculture and Nursery Products

11142NAICS

Nursery and Floriculture Production

one-to-one

0182SIC

Food Crops Grown Under Cover

11141NAICS

Food Crops Grown Under Cover

one-to-one

0191SIC

General Farms, Primarily Crop

11199NAICS

All Other Crop Farming

many-to-one2 SIC codes share this NAICS code

0211SIC

Beef Cattle Feedlots

11211NAICS

Beef Cattle Ranching and Farming, including Feedlots

many-to-one2 SIC codes share this NAICS code

0212SIC

Beef Cattle, Except Feedlots

11211NAICS

Beef Cattle Ranching and Farming, including Feedlots

many-to-one2 SIC codes share this NAICS code

0213SIC

Hogs

11221NAICS

Hog and Pig Farming

one-to-one

0214SIC

Sheep and Goats

11241NAICS

Sheep Farming

one-to-one

0241SIC

Dairy Farms

11212NAICS

Dairy Cattle and Milk Production

one-to-one

0251SIC

Broiler, Fryer, and Roaster Chickens

11232NAICS

Broilers and Other Meat-Type Chicken Production

one-to-one

0252SIC

Chicken Eggs

11231NAICS

Chicken Egg Production

one-to-one

0253SIC

Turkeys and Turkey Eggs

11233NAICS

Turkey Production

one-to-one

0254SIC

Poultry Hatcheries

11234NAICS

Poultry Hatcheries

one-to-one

0259SIC

Poultry and Eggs, Not Elsewhere Classified

11239NAICS

Other Poultry Production

one-to-one

0271SIC

Fur-Bearing Animals and Rabbits

11291NAICS

Apiculture

one-to-one

0272SIC

Horses and Other Equines

11292NAICS

Horses and Other Equine Production

one-to-one

0273SIC

Animal Aquaculture

11251NAICS

Aquaculture

many-to-one2 SIC codes share this NAICS code

0291SIC

General Farms, Primarily Livestock and Animal Specialties

11299NAICS

All Other Animal Production

one-to-one

0711SIC

Soil Preparation Services

11511NAICS

Support Activities for Crop Production

many-to-one7 SIC codes share this NAICS code

0721SIC

Crop Planting, Cultivating, and Protecting

11511NAICS

Support Activities for Crop Production

many-to-one7 SIC codes share this NAICS code

0722SIC

Crop Harvesting, Primarily by Machine

11511NAICS

Support Activities for Crop Production

many-to-one7 SIC codes share this NAICS code

0723SIC

Crop Preparation Services for Market, Except Cotton Ginning

11511NAICS

Support Activities for Crop Production

many-to-one7 SIC codes share this NAICS code

0724SIC

Cotton Ginning

11511NAICS

Support Activities for Crop Production

many-to-one7 SIC codes share this NAICS code

0741SIC

Veterinary Services for Livestock

54194NAICS

Veterinary Services

one-to-one

0742SIC

Veterinary Services for Animal Specialties

81291NAICS

Pet Care (except Veterinary) Services

many-to-one2 SIC codes share this NAICS code

0751SIC

Livestock Services, Except Veterinary

11521NAICS

Support Activities for Animal Production

one-to-one

0752SIC

Animal Specialty Services, Except Veterinary

81291NAICS

Pet Care (except Veterinary) Services

many-to-one2 SIC codes share this NAICS code

0761SIC

Farm Labor Contractors and Crew Leaders

11511NAICS

Support Activities for Crop Production

many-to-one7 SIC codes share this NAICS code

0762SIC

Farm Management Services

11511NAICS

Support Activities for Crop Production

many-to-one7 SIC codes share this NAICS code

0781SIC

Landscape Counseling and Planning

56173NAICS

Landscaping Services

many-to-one3 SIC codes share this NAICS code

0782SIC

Lawn and Garden Services

56173NAICS

Landscaping Services

many-to-one3 SIC codes share this NAICS code

0783SIC

Ornamental Shrub and Tree Services

56173NAICS

Landscaping Services

many-to-one3 SIC codes share this NAICS code

0811SIC

Timber Tracts

11311NAICS

Timber Tract Operations

one-to-one

0831SIC

Forest Nurseries and Gathering of Forest Products

11321NAICS

Forest Nurseries and Gathering of Forest Products

one-to-one

0851SIC

Forestry Services

11531NAICS

Support Activities for Forestry

one-to-one

0912SIC

Finfish

11411NAICS

Fishing

many-to-one3 SIC codes share this NAICS code

0913SIC

Shellfish

11411NAICS

Fishing

many-to-one3 SIC codes share this NAICS code

0919SIC

Miscellaneous Marine Products

11411NAICS

Fishing

many-to-one3 SIC codes share this NAICS code

0921SIC

Fish Hatcheries and Preserves

11251NAICS

Aquaculture

many-to-one2 SIC codes share this NAICS code

0971SIC

Hunting and Trapping, and Game Propagation

11421NAICS

Hunting and Trapping

one-to-one

1011SIC

Iron Ores

21221NAICS

Iron Ore Mining

many-to-one4 SIC codes share this NAICS code

1021SIC

Copper Ores

21223NAICS

Copper, Nickel, Lead, and Zinc Mining

one-to-one

1031SIC

Lead and Zinc Ores

21222NAICS

Gold Ore and Silver Ore Mining

many-to-one2 SIC codes share this NAICS code

1041SIC

Gold Ores

21221NAICS

Iron Ore Mining

many-to-one4 SIC codes share this NAICS code

1044SIC

Silver Ores

21221NAICS

Iron Ore Mining

many-to-one4 SIC codes share this NAICS code

1061SIC

Ferroalloy Ores, Except Vanadium

21221NAICS

Iron Ore Mining

many-to-one4 SIC codes share this NAICS code

1081SIC

Metal Mining Services

21311NAICS

Support Activities for Mining

many-to-one6 SIC codes share this NAICS code

1094SIC

Uranium-Radium-Vanadium Ores

21222NAICS

Gold Ore and Silver Ore Mining

many-to-one2 SIC codes share this NAICS code

1099SIC

Miscellaneous Metal Ores, Not Elsewhere Classified

21229NAICS

Other Metal Ore Mining

one-to-one

1221SIC

Bituminous Coal and Lignite Surface Mining

21211NAICS

Coal Mining

many-to-one3 SIC codes share this NAICS code

1222SIC

Bituminous Coal Underground Mining

21211NAICS

Coal Mining

many-to-one3 SIC codes share this NAICS code

1231SIC

Anthracite Mining

21211NAICS

Coal Mining

many-to-one3 SIC codes share this NAICS code

1241SIC

Coal Mining Services

21311NAICS

Support Activities for Mining

many-to-one6 SIC codes share this NAICS code

1311SIC

Crude Petroleum and Natural Gas

21111no page — parent 2111NAICS

Crude Petroleum and Natural Gas

one-to-one

1321SIC

Natural Gas Liquids

21112NAICS

Crude Petroleum Extraction

one-to-one

1381SIC

Drilling Oil and Gas Wells

21311NAICS

Support Activities for Mining

many-to-one6 SIC codes share this NAICS code

1382SIC

Oil and Gas Field Exploration Services

21311NAICS

Support Activities for Mining

many-to-one6 SIC codes share this NAICS code

1389SIC

Oil and Gas Field Services, Not Elsewhere Classified

21311NAICS

Support Activities for Mining

many-to-one6 SIC codes share this NAICS code

1411SIC

Dimension Stone

21231NAICS

Stone Mining and Quarrying

many-to-one6 SIC codes share this NAICS code

1422SIC

Crushed and Broken Limestone

21231NAICS

Stone Mining and Quarrying

many-to-one6 SIC codes share this NAICS code

1423SIC

Crushed and Broken Granite

21231NAICS

Stone Mining and Quarrying

many-to-one6 SIC codes share this NAICS code

1429SIC

Crushed and Broken Stone, Not Elsewhere Classified

21231NAICS

Stone Mining and Quarrying

many-to-one6 SIC codes share this NAICS code

1442SIC

Construction Sand and Gravel

21231NAICS

Stone Mining and Quarrying

many-to-one6 SIC codes share this NAICS code

1446SIC

Industrial Sand

21231NAICS

Stone Mining and Quarrying

many-to-one6 SIC codes share this NAICS code

1455SIC

Kaolin and Ball Clay

21232NAICS

Sand, Gravel, Clay, and Ceramic and Refractory Minerals Mining and Quarrying

one-to-one

1459SIC

Clay, Ceramic, and Refractory Minerals, Not Elsewhere Classified

21239NAICS

Other Nonmetallic Mineral Mining and Quarrying

many-to-one5 SIC codes share this NAICS code

1474SIC

Potash, Soda, and Borate Minerals

21239NAICS

Other Nonmetallic Mineral Mining and Quarrying

many-to-one5 SIC codes share this NAICS code

1475SIC

Phosphate Rock

21239NAICS

Other Nonmetallic Mineral Mining and Quarrying

many-to-one5 SIC codes share this NAICS code

1479SIC

Chemical and Fertilizer Mineral Mining, Not Elsewhere Classified

21239NAICS

Other Nonmetallic Mineral Mining and Quarrying

many-to-one5 SIC codes share this NAICS code

1481SIC

Nonmetallic Minerals Services, Except Fuels

21311NAICS

Support Activities for Mining

many-to-one6 SIC codes share this NAICS code

1499SIC

Miscellaneous Nonmetallic Minerals, Except Fuels

21239NAICS

Other Nonmetallic Mineral Mining and Quarrying

many-to-one5 SIC codes share this NAICS code

1521SIC

General Contractors-Single-Family Houses

23611NAICS

Residential Building Construction

many-to-one3 SIC codes share this NAICS code

1522SIC

General Contractors-Residential Buildings, Other Than Single-Family

23611NAICS

Residential Building Construction

many-to-one3 SIC codes share this NAICS code

1531SIC

Operative Builders

23611NAICS

Residential Building Construction

many-to-one3 SIC codes share this NAICS code

1541SIC

General Contractors-Industrial Buildings and Warehouses

23621NAICS

Industrial Building Construction

one-to-one

1542SIC

General Contractors-Nonresidential Buildings, Other Than Industrial Buildings and Warehouses

23622NAICS

Commercial and Institutional Building Construction

one-to-one

1611SIC

Highway and Street Construction, Except Elevated Highways

23731NAICS

Highway, Street, and Bridge Construction

many-to-one2 SIC codes share this NAICS code

1622SIC

Bridge, Tunnel, and Elevated Highway Construction

23731NAICS

Highway, Street, and Bridge Construction

many-to-one2 SIC codes share this NAICS code

1623SIC

Water, Sewer, Pipeline, and Communications and Power Line Construction

23711NAICS

Water and Sewer Line and Related Structures Construction

many-to-one2 SIC codes share this NAICS code

1629SIC

Heavy Construction, Not Elsewhere Classified

23799NAICS

All Other Heavy and Civil Engineering Construction

one-to-one

1711SIC

Plumbing, Heating and Air-Conditioning

23822NAICS

Plumbing, Heating, and Air-Conditioning Contractors

one-to-one

1721SIC

Painting and Paper Hanging

23832NAICS

Painting and Wall Covering Contractors

one-to-one

1731SIC

Electrical Work

23821NAICS

Electrical Contractors and Other Wiring Installation Contractors

one-to-one

1741SIC

Masonry, Stone Setting, and Other Stone Work

23814NAICS

Masonry Contractors

one-to-one

1751SIC

Carpentry Work

23831NAICS

Drywall and Insulation Contractors

one-to-one

1752SIC

Floor Laying and Other Floor Work, Not Elsewhere Classified

23833NAICS

Flooring Contractors

one-to-one

1761SIC

Roofing, Siding, and Sheet Metal Work

23816NAICS

Roofing Contractors

one-to-one

1771SIC

Concrete Work

23813NAICS

Framing Contractors

one-to-one

1781SIC

Water Well Drilling

23891NAICS

Site Preparation Contractors

many-to-one3 SIC codes share this NAICS code

1791SIC

Structural Steel Erection

23815NAICS

Glass and Glazing Contractors

one-to-one

1794SIC

Excavation Work

23891NAICS

Site Preparation Contractors

many-to-one3 SIC codes share this NAICS code

1795SIC

Wrecking and Demolition Work

23891NAICS

Site Preparation Contractors

many-to-one3 SIC codes share this NAICS code

1796SIC

Installation or Erection of Building Equipment, Not Elsewhere Classified

23829NAICS

Other Building Equipment Contractors

one-to-one

1799SIC

Special Trade Contractors, Not Elsewhere Classified

23899NAICS

All Other Specialty Trade Contractors

one-to-one

2011SIC

Meat Packing Plants

31161NAICS

Animal Slaughtering and Processing

many-to-one4 SIC codes share this NAICS code

2013SIC

Sausages and Other Prepared Meat Products

31161NAICS

Animal Slaughtering and Processing

many-to-one4 SIC codes share this NAICS code

2015SIC

Poultry Slaughtering and Processing

31161NAICS

Animal Slaughtering and Processing

many-to-one4 SIC codes share this NAICS code

2021SIC

Creamery Butter

31151NAICS

Dairy Product (except Frozen) Manufacturing

many-to-one4 SIC codes share this NAICS code

2022SIC

Natural, Processed, and Imitation Cheese

31151NAICS

Dairy Product (except Frozen) Manufacturing

many-to-one4 SIC codes share this NAICS code

2023SIC

Dry, Condensed, and Evaporated Dairy Products

31151NAICS

Dairy Product (except Frozen) Manufacturing

many-to-one4 SIC codes share this NAICS code

2024SIC

Ice Cream and Frozen Desserts

31152NAICS

Ice Cream and Frozen Dessert Manufacturing

one-to-one

2026SIC

Fluid Milk

31151NAICS

Dairy Product (except Frozen) Manufacturing

many-to-one4 SIC codes share this NAICS code

2032SIC

Canned Specialties

31141NAICS

Frozen Food Manufacturing

many-to-one5 SIC codes share this NAICS code

2033SIC

Canned Fruits, Vegetables, Preserves, Jams, and Jellies

31141NAICS

Frozen Food Manufacturing

many-to-one5 SIC codes share this NAICS code

2034SIC

Dried and Dehydrated Fruits, Vegetables, and Soup Mixes

31142NAICS

Fruit and Vegetable Canning, Pickling, and Drying

one-to-one

2035SIC

Pickled Fruits and Vegetables, Vegetable Sauces and Seasonings, and Salad Dressings

31141NAICS

Frozen Food Manufacturing

many-to-one5 SIC codes share this NAICS code

2037SIC

Frozen Fruits, Fruit Juices, and Vegetables

31141NAICS

Frozen Food Manufacturing

many-to-one5 SIC codes share this NAICS code

2038SIC

Frozen Specialties, Not Elsewhere Classified

31141NAICS

Frozen Food Manufacturing

many-to-one5 SIC codes share this NAICS code

2041SIC

Flour and Other Grain Mill Products

31121NAICS

Flour Milling and Malt Manufacturing

many-to-one2 SIC codes share this NAICS code

2043SIC

Cereal Breakfast Foods

31123NAICS

Breakfast Cereal Manufacturing

many-to-one2 SIC codes share this NAICS code

2044SIC

Rice Milling

31121NAICS

Flour Milling and Malt Manufacturing

many-to-one2 SIC codes share this NAICS code

2046SIC

Wet Corn Milling

31122NAICS

Starch and Vegetable Fats and Oils Manufacturing

many-to-one4 SIC codes share this NAICS code

2047SIC

Dog and Cat Food

31111NAICS

Animal Food Manufacturing

many-to-one2 SIC codes share this NAICS code

2048SIC

Prepared Feed and Feed Ingredients for Animals and Fowls, Except Dogs and Cats

31111NAICS

Animal Food Manufacturing

many-to-one2 SIC codes share this NAICS code

2051SIC

Bread and Other Bakery Products, Except Cookies and Crackers

31181NAICS

Bread and Bakery Product Manufacturing

many-to-one2 SIC codes share this NAICS code

2052SIC

Cookies and Crackers

31182NAICS

Cookie, Cracker, Pasta, and Tortilla Manufacturing

many-to-one3 SIC codes share this NAICS code

2053SIC

Frozen Bakery Products, Except Bread

31182NAICS

Cookie, Cracker, Pasta, and Tortilla Manufacturing

many-to-one3 SIC codes share this NAICS code

2061SIC

Cane Sugar, Except Refining

31131NAICS

Sugar Manufacturing

many-to-one3 SIC codes share this NAICS code

2062SIC

Cane Sugar Refining

31131NAICS

Sugar Manufacturing

many-to-one3 SIC codes share this NAICS code

2063SIC

Beet Sugar

31131NAICS

Sugar Manufacturing

many-to-one3 SIC codes share this NAICS code

2064SIC

Candy and Other Confectionery Products

31134NAICS

Non-Chocolate Confectionery Manufacturing

many-to-one4 SIC codes share this NAICS code

2066SIC

Chocolate and Cocoa Products

31134NAICS

Non-Chocolate Confectionery Manufacturing

many-to-one4 SIC codes share this NAICS code

2067SIC

Chewing Gum

31134NAICS

Non-Chocolate Confectionery Manufacturing

many-to-one4 SIC codes share this NAICS code

2068SIC

Salted and Roasted Nuts and Seeds

31134NAICS

Non-Chocolate Confectionery Manufacturing

many-to-one4 SIC codes share this NAICS code

2074SIC

Cottonseed Oil Mills

31122NAICS

Starch and Vegetable Fats and Oils Manufacturing

many-to-one4 SIC codes share this NAICS code

2075SIC

Soybean Oil Mills

31122NAICS

Starch and Vegetable Fats and Oils Manufacturing

many-to-one4 SIC codes share this NAICS code

2076SIC

Vegetable Oil Mills, Except Corn, Cottonseed, and Soybean

31122NAICS

Starch and Vegetable Fats and Oils Manufacturing

many-to-one4 SIC codes share this NAICS code

2077SIC

Animal and Marine Fats and Oils

31161NAICS

Animal Slaughtering and Processing

many-to-one4 SIC codes share this NAICS code

2079SIC

Shortening, Table Oils, Margarine, and Other Edible Fats and Oils, Not Elsewhere Classified

31123NAICS

Breakfast Cereal Manufacturing

many-to-one2 SIC codes share this NAICS code

2082SIC

Malt Beverages

31212NAICS

Breweries

one-to-one

2083SIC

Malt

31213NAICS

Wineries

one-to-one

2084SIC

Wines, Brandy, and Brandy Spirits

31214NAICS

Distilleries

many-to-one2 SIC codes share this NAICS code

2085SIC

Distilled and Blended Liquors

31214NAICS

Distilleries

many-to-one2 SIC codes share this NAICS code

2086SIC

Bottled and Canned Soft Drinks and Carbonated Waters

31211NAICS

Soft Drink and Ice Manufacturing

one-to-one

2087SIC

Flavoring Extracts and Flavoring Syrups, Not Elsewhere Classified

31193NAICS

Flavoring Syrup and Concentrate Manufacturing

one-to-one

2091SIC

Canned and Cured Fish and Seafoods

31171NAICS

Seafood Product Preparation and Packaging

many-to-one2 SIC codes share this NAICS code

2092SIC

Prepared Fresh or Frozen Fish and Seafoods

31171NAICS

Seafood Product Preparation and Packaging

many-to-one2 SIC codes share this NAICS code

2095SIC

Roasted Coffee

31192NAICS

Coffee and Tea Manufacturing

one-to-one

2096SIC

Potato Chips, Corn Chips, and Similar Snacks

31191NAICS

Snack Food Manufacturing

many-to-one2 SIC codes share this NAICS code

2097SIC

Manufactured Ice

31191NAICS

Snack Food Manufacturing

many-to-one2 SIC codes share this NAICS code

2098SIC

Macaroni, Spaghetti, Vermicelli, and Noodles

31182NAICS

Cookie, Cracker, Pasta, and Tortilla Manufacturing

many-to-one3 SIC codes share this NAICS code

2099SIC

Food Preparations, Not Elsewhere Classified

31199NAICS

All Other Food Manufacturing

one-to-one

2111SIC

Cigarettes

31222no page — parent 3122NAICS

Cigarettes

many-to-one2 SIC codes share this NAICS code

2121SIC

Cigars

31221no page — parent 3122NAICS

Cigars

one-to-one

2131SIC

Chewing and Smoking Tobacco and Snuff

31222no page — parent 3122NAICS

Chewing and Smoking Tobacco and Snuff

many-to-one2 SIC codes share this NAICS code

2211SIC

Broadwoven Fabric Mills, Cotton

31321NAICS

Broadwoven Fabric Mills

many-to-one3 SIC codes share this NAICS code

2221SIC

Broadwoven Fabric Mills, Manmade Fiber and Silk

31321NAICS

Broadwoven Fabric Mills

many-to-one3 SIC codes share this NAICS code

2231SIC

Broadwoven Fabric Mills

31311NAICS

Fiber, Yarn, and Thread Mills

many-to-one7 SIC codes share this NAICS code

2241SIC

Narrow Fabric and Other Smallware Mills: Cotton, Wool, Silk, and Manmade Fiber

31321NAICS

Broadwoven Fabric Mills

many-to-one3 SIC codes share this NAICS code

2251SIC

Women's Full-Length and Knee-Length Hosiery, Except Socks

31511NAICS

Hosiery and Sock Mills

many-to-one6 SIC codes share this NAICS code

2252SIC

Hosiery, Not Elsewhere Classified

31511NAICS

Hosiery and Sock Mills

many-to-one6 SIC codes share this NAICS code

2253SIC

Knit Outerwear Mills

31511NAICS

Hosiery and Sock Mills

many-to-one6 SIC codes share this NAICS code

2254SIC

Knit Underwear and Nightwear Mills

31511NAICS

Hosiery and Sock Mills

many-to-one6 SIC codes share this NAICS code

2257SIC

Weft Knit Fabric Mills

31511NAICS

Hosiery and Sock Mills

many-to-one6 SIC codes share this NAICS code

2258SIC

Lace and Warp Knit Fabric Mills

31511NAICS

Hosiery and Sock Mills

many-to-one6 SIC codes share this NAICS code

2259SIC

Knitting Mills, Not Elsewhere Classified

31519NAICS

Other Apparel Knitting Mills

one-to-one

2261SIC

Finishers of Broadwoven Fabrics of Cotton

31311NAICS

Fiber, Yarn, and Thread Mills

many-to-one7 SIC codes share this NAICS code

2262SIC

Finishers of Broadwoven Fabrics of Manmade Fiber and Silk

31311NAICS

Fiber, Yarn, and Thread Mills

many-to-one7 SIC codes share this NAICS code

2269SIC

Finishers of Textiles, Not Elsewhere Classified

31311NAICS

Fiber, Yarn, and Thread Mills

many-to-one7 SIC codes share this NAICS code

2273SIC

Carpets and Rugs

31411NAICS

Carpet and Rug Mills

one-to-one

2281SIC

Yarn Spinning Mills

31311NAICS

Fiber, Yarn, and Thread Mills

many-to-one7 SIC codes share this NAICS code

2282SIC

Yarn Texturizing, Throwing, Twisting, and Winding Mills

31311NAICS

Fiber, Yarn, and Thread Mills

many-to-one7 SIC codes share this NAICS code

2284SIC

Thread Mills

31311NAICS

Fiber, Yarn, and Thread Mills

many-to-one7 SIC codes share this NAICS code

2295SIC

Coated Fabrics, Not Rubberized

31332no page — parent 3133NAICS

Coated Fabrics, Not Rubberized

many-to-one4 SIC codes share this NAICS code

2296SIC

Tire Cord and Fabrics

31332no page — parent 3133NAICS

Tire Cord and Fabrics

many-to-one4 SIC codes share this NAICS code

2297SIC

Non-woven Fabrics

31332no page — parent 3133NAICS

Non-woven Fabrics

many-to-one4 SIC codes share this NAICS code

2298SIC

Cordage and Twine

31332no page — parent 3133NAICS

Cordage and Twine

many-to-one4 SIC codes share this NAICS code

2299SIC

Textile Goods, Not Elsewhere Classified

31322NAICS

Narrow Fabric Mills and Schiffli Machine Embroidery

one-to-one

2311SIC

Men's and Boys' Suits, Coats, and Overcoats

31521NAICS

Cut and Sew Apparel Contractors

many-to-one5 SIC codes share this NAICS code

2321SIC

Men's and Boys' Shirts, Except Work Shirts

31522NAICS

Men's and Boys' Cut and Sew Apparel Manufacturing

many-to-one3 SIC codes share this NAICS code

2322SIC

Men's and Boys' Underwear and Nightwear

31522NAICS

Men's and Boys' Cut and Sew Apparel Manufacturing

many-to-one3 SIC codes share this NAICS code

2323SIC

Men's and Boys' Neckwear

31523no page — parent 3152NAICS

Men's and Boys' Neckwear

many-to-one5 SIC codes share this NAICS code

2325SIC

Men's and Boys' Separate Trousers and Slacks

31521NAICS

Cut and Sew Apparel Contractors

many-to-one5 SIC codes share this NAICS code

2326SIC

Men's and Boys' Work Clothing

31521NAICS

Cut and Sew Apparel Contractors

many-to-one5 SIC codes share this NAICS code

2329SIC

Men's and Boys' Clothing, Not Elsewhere Classified

31529no page — parent 3152NAICS

Men's and Boys' Clothing, Not Elsewhere Classified

many-to-one2 SIC codes share this NAICS code

2331SIC

Women's, Misses', and Juniors' Blouses and Shirts

31523no page — parent 3152NAICS

Women's, Misses', and Juniors' Blouses and Shirts

many-to-one5 SIC codes share this NAICS code

2335SIC

Women's, Misses', and Juniors' Dresses

31523no page — parent 3152NAICS

Women's, Misses', and Juniors' Dresses

many-to-one5 SIC codes share this NAICS code

2337SIC

Women's, Misses', and Juniors' Suits, Skirts, and Coats

31523no page — parent 3152NAICS

Women's, Misses', and Juniors' Suits, Skirts, and Coats

many-to-one5 SIC codes share this NAICS code

2339SIC

Women's, Misses', and Juniors' Outerwear, Not Elsewhere Classified

31529no page — parent 3152NAICS

Women's, Misses', and Juniors' Outerwear, Not Elsewhere Classified

many-to-one2 SIC codes share this NAICS code

2341SIC

Women's, Misses', Children's, and Infants' Underwear and Nightwear

31523no page — parent 3152NAICS

Women's, Misses', Children's, and Infants' Underwear and Nightwear

many-to-one5 SIC codes share this NAICS code

2353SIC

Hats, Caps, and Millinery

31599NAICS

Apparel Accessories and Other Apparel Manufacturing

many-to-one7 SIC codes share this NAICS code

2361SIC

Girls', Children's, and Infants' Dresses, Blouses, and Shirts

31521NAICS

Cut and Sew Apparel Contractors

many-to-one5 SIC codes share this NAICS code

2369SIC

Girls', Children's, and Infants' Outerwear, Not Elsewhere Classified

31521NAICS

Cut and Sew Apparel Contractors

many-to-one5 SIC codes share this NAICS code

2371SIC

Fur Goods

31599NAICS

Apparel Accessories and Other Apparel Manufacturing

many-to-one7 SIC codes share this NAICS code

2381SIC

Dress and Work Gloves, Except Knit and All-Leather

31522NAICS

Men's and Boys' Cut and Sew Apparel Manufacturing

many-to-one3 SIC codes share this NAICS code

2384SIC

Robes and Dressing Gowns

31599NAICS

Apparel Accessories and Other Apparel Manufacturing

many-to-one7 SIC codes share this NAICS code

2385SIC

Waterproof Outerwear

31599NAICS

Apparel Accessories and Other Apparel Manufacturing

many-to-one7 SIC codes share this NAICS code

2386SIC

Leather and Sheep-Lined Clothing

31599NAICS

Apparel Accessories and Other Apparel Manufacturing

many-to-one7 SIC codes share this NAICS code

2387SIC

Apparel Belts

31599NAICS

Apparel Accessories and Other Apparel Manufacturing

many-to-one7 SIC codes share this NAICS code

2389SIC

Apparel and Accessories, Not Elsewhere Classified

31599NAICS

Apparel Accessories and Other Apparel Manufacturing

many-to-one7 SIC codes share this NAICS code

2391SIC

Curtains and Draperies

31491NAICS

Textile Bag and Canvas Mills

many-to-one6 SIC codes share this NAICS code

2392SIC

House Furnishings, Except Curtains and Draperies

31491NAICS

Textile Bag and Canvas Mills

many-to-one6 SIC codes share this NAICS code

2393SIC

Textile Bags

31491NAICS

Textile Bag and Canvas Mills

many-to-one6 SIC codes share this NAICS code

2394SIC

Canvas and Related Products

31491NAICS

Textile Bag and Canvas Mills

many-to-one6 SIC codes share this NAICS code

2395SIC

Pleating, Decorative and Novelty Stitching, and Tucking for the Trade

31491NAICS

Textile Bag and Canvas Mills

many-to-one6 SIC codes share this NAICS code

2396SIC

Automotive Trimmings, Apparel Findings, and Related Products

31499NAICS

All Other Textile Product Mills

many-to-one2 SIC codes share this NAICS code

2397SIC

Schiffli Machine Embroideries

31491NAICS

Textile Bag and Canvas Mills

many-to-one6 SIC codes share this NAICS code

2399SIC

Fabricated Textile Products, Not Elsewhere Classified

31499NAICS

All Other Textile Product Mills

many-to-one2 SIC codes share this NAICS code

2411SIC

Logging

11331NAICS

Logging

one-to-one

2421SIC

Sawmills and Planing Mills, General

32111NAICS

Sawmills and Wood Preservation

one-to-one

2426SIC

Hardwood Dimension and Flooring Mills

32191NAICS

Millwork

many-to-one3 SIC codes share this NAICS code

2429SIC

Special Product Sawmills, Not Elsewhere Classified

32199NAICS

All Other Wood Product Manufacturing

many-to-one5 SIC codes share this NAICS code

2431SIC

Millwork

32191NAICS

Millwork

many-to-one3 SIC codes share this NAICS code

2434SIC

Wood Kitchen Cabinets

33711NAICS

Wood Kitchen Cabinet and Countertop Manufacturing

many-to-one6 SIC codes share this NAICS code

2435SIC

Hardwood Veneer and Plywood

32121NAICS

Veneer, Plywood, and Engineered Wood Product Manufacturing

many-to-one4 SIC codes share this NAICS code

2436SIC

Softwood Veneer and Plywood

32121NAICS

Veneer, Plywood, and Engineered Wood Product Manufacturing

many-to-one4 SIC codes share this NAICS code

2439SIC

Structural Wood Members, Not Elsewhere Classified

32121NAICS

Veneer, Plywood, and Engineered Wood Product Manufacturing

many-to-one4 SIC codes share this NAICS code

2441SIC

Nailed and Lock Corner Wood Boxes and Shook

32192NAICS

Wood Container and Pallet Manufacturing

many-to-one2 SIC codes share this NAICS code

2448SIC

Wood Pallets and Skids

32192NAICS

Wood Container and Pallet Manufacturing

many-to-one2 SIC codes share this NAICS code

2449SIC

Wood Containers, Not Elsewhere Classified

32199NAICS

All Other Wood Product Manufacturing

many-to-one5 SIC codes share this NAICS code

2451SIC

Mobile Homes

32199NAICS

All Other Wood Product Manufacturing

many-to-one5 SIC codes share this NAICS code

2452SIC

Prefabricated Wood Buildings and Components

32199NAICS

All Other Wood Product Manufacturing

many-to-one5 SIC codes share this NAICS code

2491SIC

Wood Preserving

32191NAICS

Millwork

many-to-one3 SIC codes share this NAICS code

2493SIC

Reconstituted Wood Products

32121NAICS

Veneer, Plywood, and Engineered Wood Product Manufacturing

many-to-one4 SIC codes share this NAICS code

2499SIC

Wood Products, Not Elsewhere Classified

32199NAICS

All Other Wood Product Manufacturing

many-to-one5 SIC codes share this NAICS code

2511SIC

Wood Household Furniture, Except Upholstered

33711NAICS

Wood Kitchen Cabinet and Countertop Manufacturing

many-to-one6 SIC codes share this NAICS code

2514SIC

Metal Household Furniture

33712NAICS

Household and Institutional Furniture Manufacturing

many-to-one2 SIC codes share this NAICS code

2515SIC

Mattresses, Foundations, and Convertible Beds

33712NAICS

Household and Institutional Furniture Manufacturing

many-to-one2 SIC codes share this NAICS code

2521SIC

Wood Office Furniture

33711NAICS

Wood Kitchen Cabinet and Countertop Manufacturing

many-to-one6 SIC codes share this NAICS code

2522SIC

Office Furniture, Except Wood

33711NAICS

Wood Kitchen Cabinet and Countertop Manufacturing

many-to-one6 SIC codes share this NAICS code

2531SIC

Public Building and Related Furniture

33711NAICS

Wood Kitchen Cabinet and Countertop Manufacturing

many-to-one6 SIC codes share this NAICS code

2541SIC

Wood Office and Store Fixtures, Partitions, Shelving, and Lockers

33711NAICS

Wood Kitchen Cabinet and Countertop Manufacturing

many-to-one6 SIC codes share this NAICS code

2591SIC

Drapery Hardware and Window Blinds and Shades

33721NAICS

Office Furniture (including Fixtures) Manufacturing

one-to-one

2599SIC

Furniture and Fixtures, Not Elsewhere Classified

33729no page — parent 3372NAICS

Furniture and Fixtures, Not Elsewhere Classified

one-to-one

2611SIC

Pulp Mills

32211NAICS

Pulp Mills

one-to-one

2621SIC

Paper Mills

32212NAICS

Paper Mills

one-to-one

2631SIC

Paperboard Mills

32213NAICS

Paperboard Mills

one-to-one

2652SIC

Setup Paperboard Boxes

32221NAICS

Paperboard Container Manufacturing

many-to-one5 SIC codes share this NAICS code

2653SIC

Corrugated and Solid Fiber Boxes

32221NAICS

Paperboard Container Manufacturing

many-to-one5 SIC codes share this NAICS code

2655SIC

Fiber Cans, Tubes, Drums, and Similar Products

32221NAICS

Paperboard Container Manufacturing

many-to-one5 SIC codes share this NAICS code

2656SIC

Sanitary Food Containers, Except Folding

32221NAICS

Paperboard Container Manufacturing

many-to-one5 SIC codes share this NAICS code

2657SIC

Folding Paperboard Boxes, Including Sanitary

32221NAICS

Paperboard Container Manufacturing

many-to-one5 SIC codes share this NAICS code

2671SIC

Packaging Paper and Plastics Film, Coated and Laminated

32222NAICS

Paper Bag and Coated and Treated Paper Manufacturing

many-to-one9 SIC codes share this NAICS code

2672SIC

Coated and Laminated Paper, Not Elsewhere Classified

32222NAICS

Paper Bag and Coated and Treated Paper Manufacturing

many-to-one9 SIC codes share this NAICS code

2673SIC

Plastics, Foil, and Coated Paper Bags

32222NAICS

Paper Bag and Coated and Treated Paper Manufacturing

many-to-one9 SIC codes share this NAICS code

2674SIC

Uncoated Paper and Multiwall Bags

32222NAICS

Paper Bag and Coated and Treated Paper Manufacturing

many-to-one9 SIC codes share this NAICS code

2675SIC

Die-Cut Paper and Paperboard and Cardboard

32222NAICS

Paper Bag and Coated and Treated Paper Manufacturing

many-to-one9 SIC codes share this NAICS code

2676SIC

Sanitary Paper Products

32222NAICS

Paper Bag and Coated and Treated Paper Manufacturing

many-to-one9 SIC codes share this NAICS code

2677SIC

Envelopes

32222NAICS

Paper Bag and Coated and Treated Paper Manufacturing

many-to-one9 SIC codes share this NAICS code

2678SIC

Stationery, Tablets, and Related Products

32222NAICS

Paper Bag and Coated and Treated Paper Manufacturing

many-to-one9 SIC codes share this NAICS code

2679SIC

Converted Paper and Paperboard Products, Not Elsewhere Classified

32222NAICS

Paper Bag and Coated and Treated Paper Manufacturing

many-to-one9 SIC codes share this NAICS code

2711SIC

Newspapers: Publishing, or Publishing and Printing

51111no page — parent 51NAICS

Newspapers: Publishing, or Publishing and Printing

one-to-one

2721SIC

Periodicals: Publishing, or Publishing and Printing

51112no page — parent 51NAICS

Periodicals: Publishing, or Publishing and Printing

one-to-one

2731SIC

Books: Publishing, or Publishing and Printing

51113no page — parent 51NAICS

Books: Publishing, or Publishing and Printing

one-to-one

2732SIC

Book Printing

51119no page — parent 51NAICS

Book Printing

one-to-one

2741SIC

Miscellaneous Publishing

51114no page — parent 51NAICS

Miscellaneous Publishing

one-to-one

2752SIC

Commercial Printing, Lithographic

32311NAICS

Printing

many-to-one9 SIC codes share this NAICS code

2759SIC

Commercial Printing, Not Elsewhere Classified

32311NAICS

Printing

many-to-one9 SIC codes share this NAICS code

2761SIC

Manifold Business Forms

32311NAICS

Printing

many-to-one9 SIC codes share this NAICS code

2771SIC

Greeting Cards

32311NAICS

Printing

many-to-one9 SIC codes share this NAICS code

2782SIC

Blankbooks

32311NAICS

Printing

many-to-one9 SIC codes share this NAICS code

2789SIC

Bookbinding and Related Work

32311NAICS

Printing

many-to-one9 SIC codes share this NAICS code

2791SIC

Typesetting

32311NAICS

Printing

many-to-one9 SIC codes share this NAICS code

2796SIC

Platemaking and Related Services

32311NAICS

Printing

many-to-one9 SIC codes share this NAICS code

2812SIC

Alkalies and Chlorine

32518NAICS

Other Basic Inorganic Chemical Manufacturing

many-to-one5 SIC codes share this NAICS code

2813SIC

Industrial Gases

32512NAICS

Industrial Gas Manufacturing

one-to-one

2816SIC

Inorganic Pigments

32518NAICS

Other Basic Inorganic Chemical Manufacturing

many-to-one5 SIC codes share this NAICS code

2819SIC

Industrial Inorganic Chemicals, Not Elsewhere Classified

32518NAICS

Other Basic Inorganic Chemical Manufacturing

many-to-one5 SIC codes share this NAICS code

2821SIC

Plastics Materials, Synthetic Resins, and Nonvulcanizable Elastomers

32521NAICS

Plastics Material and Resin Manufacturing

many-to-one3 SIC codes share this NAICS code

2822SIC

Synthetic Rubber (Vulcanizable Elastomers)

32521NAICS

Plastics Material and Resin Manufacturing

many-to-one3 SIC codes share this NAICS code

2824SIC

Manmade Organic Fibers, Except Cellulosic

32521NAICS

Plastics Material and Resin Manufacturing

many-to-one3 SIC codes share this NAICS code

2833SIC

Medicinal Chemicals and Botanical Products

32541NAICS

Pharmaceutical and Medicine Manufacturing

many-to-one3 SIC codes share this NAICS code

2835SIC

In Vitro and In Vivo Diagnostic Substances

32541NAICS

Pharmaceutical and Medicine Manufacturing

many-to-one3 SIC codes share this NAICS code

2836SIC

Biological Products, Except Diagnostic Substances

32541NAICS

Pharmaceutical and Medicine Manufacturing

many-to-one3 SIC codes share this NAICS code

2841SIC

Soap and Other Detergents, Except Specialty Cleaners

32561NAICS

Soap and Other Detergent Manufacturing

one-to-one

2842SIC

Specialty Cleaning, Polishing, and Sanitation Preparations

32562NAICS

Polish and Other Sanitation Good Manufacturing

many-to-one3 SIC codes share this NAICS code

2843SIC

Surface Active Agents, Finishing Agents, Sulfonated Oils, and Assistants

32562NAICS

Polish and Other Sanitation Good Manufacturing

many-to-one3 SIC codes share this NAICS code

2844SIC

Perfumes, Cosmetics, and Other Toilet Preparations

32562NAICS

Polish and Other Sanitation Good Manufacturing

many-to-one3 SIC codes share this NAICS code

2851SIC

Paints, Varnishes, Lacquers, Enamels, and Allied Products

32551NAICS

Paint and Coating Manufacturing

one-to-one

2861SIC

Gum and Wood Chemicals

32519NAICS

Other Basic Organic Chemical Manufacturing

many-to-one2 SIC codes share this NAICS code

2865SIC

Cyclic Organic Crudes and Intermediates, and Organic Dyes and Pigments

32518NAICS

Other Basic Inorganic Chemical Manufacturing

many-to-one5 SIC codes share this NAICS code

2869SIC

Industrial Organic Chemicals, Not Elsewhere Classified

32518NAICS

Other Basic Inorganic Chemical Manufacturing

many-to-one5 SIC codes share this NAICS code

2873SIC

Nitrogenous Fertilizers

32531NAICS

Fertilizer Manufacturing

many-to-one4 SIC codes share this NAICS code

2874SIC

Phosphatic Fertilizers

32531NAICS

Fertilizer Manufacturing

many-to-one4 SIC codes share this NAICS code

2875SIC

Fertilizers, Mixing Only

32531NAICS

Fertilizer Manufacturing

many-to-one4 SIC codes share this NAICS code

2879SIC

Pesticides and Agricultural Chemicals, Not Elsewhere Classified

32532NAICS

Pesticide and Other Agricultural Chemical Manufacturing

one-to-one

2891SIC

Adhesives and Sealants

32552NAICS

Adhesive Manufacturing

one-to-one

2892SIC

Explosives

32592NAICS

Explosives Manufacturing

one-to-one

2893SIC

Printing Ink

32591NAICS

Printing Ink Manufacturing

one-to-one

2895SIC

Carbon Black

32519NAICS

Other Basic Organic Chemical Manufacturing

many-to-one2 SIC codes share this NAICS code

2899SIC

Chemicals and Chemical Preparations, Not Elsewhere Classified

32599NAICS

All Other Chemical Product and Preparation Manufacturing

one-to-one

2911SIC

Petroleum Refining

32411NAICS

Petroleum Refineries

one-to-one

2951SIC

Asphalt Paving Mixtures and Blocks

32412no page — parent 3241NAICS

Asphalt Paving Mixtures and Blocks

many-to-one2 SIC codes share this NAICS code

2952SIC

Asphalt Felts and Coatings

32412no page — parent 3241NAICS

Asphalt Felts and Coatings

many-to-one2 SIC codes share this NAICS code

2992SIC

Lubricating Oils and Greases

32419NAICS

Other Petroleum and Coal Products Manufacturing

many-to-one2 SIC codes share this NAICS code

2999SIC

Products of Petroleum and Coal, Not Elsewhere Classified

32419NAICS

Other Petroleum and Coal Products Manufacturing

many-to-one2 SIC codes share this NAICS code

3011SIC

Tires and Inner Tubes

32621NAICS

Tire Manufacturing

many-to-one2 SIC codes share this NAICS code

3021SIC

Rubber and Plastics Footwear

32621NAICS

Tire Manufacturing

many-to-one2 SIC codes share this NAICS code

3052SIC

Rubber and Plastics Hose and Belting

32629NAICS

Other Rubber Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3053SIC

Gaskets, Packing, and Sealing Devices

32629NAICS

Other Rubber Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3061SIC

Molded, Extruded, and Lathe-Cut Mechanical Rubber Goods

32629NAICS

Other Rubber Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3069SIC

Fabricated Rubber Products, Not Elsewhere Classified

32629NAICS

Other Rubber Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3081SIC

Unsupported Plastics Film and Sheet

32619NAICS

Other Plastics Product Manufacturing

many-to-one9 SIC codes share this NAICS code

3082SIC

Unsupported Plastics Profile Shapes

32619NAICS

Other Plastics Product Manufacturing

many-to-one9 SIC codes share this NAICS code

3083SIC

Laminated Plastics Plate, Sheet, and Profile Shapes

32619NAICS

Other Plastics Product Manufacturing

many-to-one9 SIC codes share this NAICS code

3084SIC

Plastics Pipe

32619NAICS

Other Plastics Product Manufacturing

many-to-one9 SIC codes share this NAICS code

3085SIC

Plastics Bottles

32619NAICS

Other Plastics Product Manufacturing

many-to-one9 SIC codes share this NAICS code

3086SIC

Plastics Foam Products

32619NAICS

Other Plastics Product Manufacturing

many-to-one9 SIC codes share this NAICS code

3087SIC

Custom Compounding of Purchased Plastics Resins

32619NAICS

Other Plastics Product Manufacturing

many-to-one9 SIC codes share this NAICS code

3088SIC

Plastics Plumbing Fixtures

32619NAICS

Other Plastics Product Manufacturing

many-to-one9 SIC codes share this NAICS code

3089SIC

Plastics Products, Not Elsewhere Classified

32619NAICS

Other Plastics Product Manufacturing

many-to-one9 SIC codes share this NAICS code

3111SIC

Leather Tanning and Finishing

31611NAICS

Leather and Hide Tanning and Finishing

many-to-one2 SIC codes share this NAICS code

3131SIC

Boot and Shoe Cut Stock and Findings

31621NAICS

Footwear Manufacturing

many-to-one4 SIC codes share this NAICS code

3142SIC

House Slippers

31621NAICS

Footwear Manufacturing

many-to-one4 SIC codes share this NAICS code

3143SIC

Men's Footwear, Except Athletic

31621NAICS

Footwear Manufacturing

many-to-one4 SIC codes share this NAICS code

3144SIC

Women's Footwear, Except Athletic

31621NAICS

Footwear Manufacturing

many-to-one4 SIC codes share this NAICS code

3149SIC

Footwear, Except Rubber, Not Elsewhere Classified

31629no page — parent 3162NAICS

Footwear, Except Rubber, Not Elsewhere Classified

one-to-one

3151SIC

Leather Gloves and Mittens

31611NAICS

Leather and Hide Tanning and Finishing

many-to-one2 SIC codes share this NAICS code

3161SIC

Luggage

31699NAICS

Other Leather and Allied Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3171SIC

Women's Handbags and Purses

31699NAICS

Other Leather and Allied Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3172SIC

Personal Leather Goods, Except Women's Handbags and Purses

31699NAICS

Other Leather and Allied Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3199SIC

Leather Goods, Not Elsewhere Classified

31699NAICS

Other Leather and Allied Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3211SIC

Flat Glass

32721NAICS

Glass and Glass Product Manufacturing

many-to-one2 SIC codes share this NAICS code

3221SIC

Glass Containers

32713no page — parent 3271NAICS

Glass Containers

one-to-one

3229SIC

Pressed and Blown Glass and Glassware, Not Elsewhere Classified

32719no page — parent 3271NAICS

Pressed and Blown Glass and Glassware, Not Elsewhere Classified

one-to-one

3231SIC

Glass Products, Made of Purchased Glass

32721NAICS

Glass and Glass Product Manufacturing

many-to-one2 SIC codes share this NAICS code

3241SIC

Cement, Hydraulic

32731NAICS

Cement Manufacturing

many-to-one2 SIC codes share this NAICS code

3251SIC

Brick and Structural Clay Tile

32741NAICS

Lime Manufacturing

many-to-one6 SIC codes share this NAICS code

3253SIC

Ceramic Wall and Floor Tile

32741NAICS

Lime Manufacturing

many-to-one6 SIC codes share this NAICS code

3255SIC

Clay Refractories

32741NAICS

Lime Manufacturing

many-to-one6 SIC codes share this NAICS code

3259SIC

Structural Clay Products, Not Elsewhere Classified

32741NAICS

Lime Manufacturing

many-to-one6 SIC codes share this NAICS code

3261SIC

Vitreous China Plumbing Fixtures and China and Earthenware Fittings and Bathroom Accessories

32711NAICS

Pottery, Ceramics, and Plumbing Fixture Manufacturing

many-to-one5 SIC codes share this NAICS code

3262SIC

Vitreous China Table and Kitchen Articles

32711NAICS

Pottery, Ceramics, and Plumbing Fixture Manufacturing

many-to-one5 SIC codes share this NAICS code

3263SIC

Fine Earthenware (Whiteware) Table and Kitchen Articles

32711NAICS

Pottery, Ceramics, and Plumbing Fixture Manufacturing

many-to-one5 SIC codes share this NAICS code

3264SIC

Porcelain Electrical Supplies

32711NAICS

Pottery, Ceramics, and Plumbing Fixture Manufacturing

many-to-one5 SIC codes share this NAICS code

3269SIC

Pottery Products, Not Elsewhere Classified

32711NAICS

Pottery, Ceramics, and Plumbing Fixture Manufacturing

many-to-one5 SIC codes share this NAICS code

3271SIC

Concrete Block and Brick

32732NAICS

Ready-Mix Concrete Manufacturing

one-to-one

3272SIC

Concrete Products, Except Block and Brick

32733NAICS

Concrete Pipe, Brick, and Block Manufacturing

many-to-one2 SIC codes share this NAICS code

3273SIC

Ready-Mixed Concrete

32733NAICS

Concrete Pipe, Brick, and Block Manufacturing

many-to-one2 SIC codes share this NAICS code

3274SIC

Lime

32741NAICS

Lime Manufacturing

many-to-one6 SIC codes share this NAICS code

3275SIC

Gypsum Products

32741NAICS

Lime Manufacturing

many-to-one6 SIC codes share this NAICS code

3281SIC

Cut Stone and Stone Products

32739NAICS

Other Concrete Product Manufacturing

one-to-one

3291SIC

Abrasive Products

32791NAICS

Abrasive Product Manufacturing

many-to-one2 SIC codes share this NAICS code

3292SIC

Asbestos Products

32791NAICS

Abrasive Product Manufacturing

many-to-one2 SIC codes share this NAICS code

3295SIC

Minerals and Earths, Ground or Otherwise Treated

32731NAICS

Cement Manufacturing

many-to-one2 SIC codes share this NAICS code

3296SIC

Mineral Wool

32799NAICS

All Other Nonmetallic Mineral Product Manufacturing

many-to-one3 SIC codes share this NAICS code

3297SIC

Nonclay Refractories

32799NAICS

All Other Nonmetallic Mineral Product Manufacturing

many-to-one3 SIC codes share this NAICS code

3299SIC

Nonmetallic Mineral Products, Not Elsewhere Classified

32799NAICS

All Other Nonmetallic Mineral Product Manufacturing

many-to-one3 SIC codes share this NAICS code

3312SIC

Steel Works, Blast Furnaces (Including Coke Ovens), and Rolling Mills

33111NAICS

Iron and Steel Mills and Ferroalloy Manufacturing

many-to-one2 SIC codes share this NAICS code

3313SIC

Electrometallurgical Products, Except Steel

33111NAICS

Iron and Steel Mills and Ferroalloy Manufacturing

many-to-one2 SIC codes share this NAICS code

3315SIC

Steel Wiredrawing and Steel Nails and Spikes

33122NAICS

Rolling and Drawing of Purchased Steel

many-to-one3 SIC codes share this NAICS code

3316SIC

Cold-Rolled Steel Sheet, Strip, and Bars

33122NAICS

Rolling and Drawing of Purchased Steel

many-to-one3 SIC codes share this NAICS code

3317SIC

Steel Pipe and Tubes

33122NAICS

Rolling and Drawing of Purchased Steel

many-to-one3 SIC codes share this NAICS code

3321SIC

Gray and Ductile Iron Foundries

33151NAICS

Ferrous Metal Foundries

many-to-one6 SIC codes share this NAICS code

3322SIC

Malleable Iron Foundries

33151NAICS

Ferrous Metal Foundries

many-to-one6 SIC codes share this NAICS code

3325SIC

Steel Foundries, Not Elsewhere Classified

33159no page — parent 3315NAICS

Steel Foundries, Not Elsewhere Classified

many-to-one3 SIC codes share this NAICS code

3334SIC

Primary Production of Aluminum

33131NAICS

Alumina Refining and Primary Aluminum Production

one-to-one

3339SIC

Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum

33139no page — parent 3313NAICS

Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum

one-to-one

3341SIC

Secondary Smelting and Refining of Nonferrous Metals

33141NAICS

Nonferrous Metal (except Aluminum) Smelting and Refining

one-to-one

3351SIC

Rolling, Drawing, and Extruding of Copper

33142NAICS

Copper Rolling, Drawing, Extruding, and Alloying

many-to-one4 SIC codes share this NAICS code

3353SIC

Aluminum Sheet

33142NAICS

Copper Rolling, Drawing, Extruding, and Alloying

many-to-one4 SIC codes share this NAICS code

3354SIC

Aluminum Extruded Products

33142NAICS

Copper Rolling, Drawing, Extruding, and Alloying

many-to-one4 SIC codes share this NAICS code

3355SIC

Aluminum Rolling and Drawing, Not Elsewhere Classified

33142NAICS

Copper Rolling, Drawing, Extruding, and Alloying

many-to-one4 SIC codes share this NAICS code

3356SIC

Rolling, Drawing, and Extruding of Nonferrous Metals, Except Copper and Aluminum

33149NAICS

Nonferrous Metal Rolling, Drawing, Extruding, and Alloying

one-to-one

3357SIC

Drawing and Insulating of Nonferrous Wire

33592NAICS

Communication and Energy Wire and Cable Manufacturing

many-to-one2 SIC codes share this NAICS code

3363SIC

Aluminum Die-Castings

33151NAICS

Ferrous Metal Foundries

many-to-one6 SIC codes share this NAICS code

3364SIC

Nonferrous Die-Castings, Except Aluminum

33151NAICS

Ferrous Metal Foundries

many-to-one6 SIC codes share this NAICS code

3365SIC

Aluminum Foundries

33151NAICS

Ferrous Metal Foundries

many-to-one6 SIC codes share this NAICS code

3366SIC

Copper Foundries

33151NAICS

Ferrous Metal Foundries

many-to-one6 SIC codes share this NAICS code

3369SIC

Nonferrous Foundries, Except Aluminum and Copper

33159no page — parent 3315NAICS

Nonferrous Foundries, Except Aluminum and Copper

many-to-one3 SIC codes share this NAICS code

3398SIC

Metal Heat Treating

33199no page — parent 331NAICS

Metal Heat Treating

many-to-one2 SIC codes share this NAICS code

3399SIC

Primary Metal Products, Not Elsewhere Classified

33199no page — parent 331NAICS

Primary Metal Products, Not Elsewhere Classified

many-to-one2 SIC codes share this NAICS code

3411SIC

Metal Cans

33241NAICS

Power Boiler and Heat Exchanger Manufacturing

many-to-one2 SIC codes share this NAICS code

3412SIC

Metal Shipping Barrels, Drums, Kegs, and Pails

33241NAICS

Power Boiler and Heat Exchanger Manufacturing

many-to-one2 SIC codes share this NAICS code

3423SIC

Hand and Edge Tools, Except Machine Tools and Handsaws

33221NAICS

Cutlery and Handtool Manufacturing

many-to-one3 SIC codes share this NAICS code

3425SIC

Saw Blades and Handsaws

33221NAICS

Cutlery and Handtool Manufacturing

many-to-one3 SIC codes share this NAICS code

3429SIC

Hardware, Not Elsewhere Classified

33259no page — parent 3325NAICS

Hardware, Not Elsewhere Classified

many-to-one6 SIC codes share this NAICS code

3433SIC

Heating Equipment, Except Electric and Warm Air Furnaces

33231NAICS

Plate Work and Fabricated Structural Product Manufacturing

many-to-one5 SIC codes share this NAICS code

3441SIC

Fabricated Structural Metal

33231NAICS

Plate Work and Fabricated Structural Product Manufacturing

many-to-one5 SIC codes share this NAICS code

3442SIC

Metal Doors, Sash, Frames, Molding, and Trim Manufacturing

33231NAICS

Plate Work and Fabricated Structural Product Manufacturing

many-to-one5 SIC codes share this NAICS code

3443SIC

Fabricated Plate Work (Boiler Shops)

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3444SIC

Sheet Metal Work

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3446SIC

Architectural and Ornamental Metal Work

33231NAICS

Plate Work and Fabricated Structural Product Manufacturing

many-to-one5 SIC codes share this NAICS code

3448SIC

Prefabricated Metal Buildings and Components

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3449SIC

Miscellaneous Structural Metal Work

33231NAICS

Plate Work and Fabricated Structural Product Manufacturing

many-to-one5 SIC codes share this NAICS code

3462SIC

Iron and Steel Forgings

33261NAICS

Spring and Wire Product Manufacturing

many-to-one2 SIC codes share this NAICS code

3463SIC

Nonferrous Forgings

33261NAICS

Spring and Wire Product Manufacturing

many-to-one2 SIC codes share this NAICS code

3465SIC

Automotive Stampings

33271NAICS

Machine Shops

many-to-one3 SIC codes share this NAICS code

3466SIC

Crowns and Closures

33271NAICS

Machine Shops

many-to-one3 SIC codes share this NAICS code

3469SIC

Metal Stampings, Not Elsewhere Classified

33271NAICS

Machine Shops

many-to-one3 SIC codes share this NAICS code

3471SIC

Electroplating, Plating, Polishing, Anodizing, and Coloring

33281NAICS

Coating, Engraving, Heat Treating, and Allied Activities

many-to-one2 SIC codes share this NAICS code

3479SIC

Coating, Engraving, and Allied Services, Not Elsewhere Classified

33281NAICS

Coating, Engraving, Heat Treating, and Allied Activities

many-to-one2 SIC codes share this NAICS code

3482SIC

Small Arms Ammunition

33299NAICS

All Other Fabricated Metal Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3483SIC

Ammunition, Except for Small Arms

33299NAICS

All Other Fabricated Metal Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3484SIC

Small Arms

33292no page — parent 3329NAICS

Small Arms

many-to-one2 SIC codes share this NAICS code

3489SIC

Ordnance and Accessories, Not Elsewhere Classified

33299NAICS

All Other Fabricated Metal Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3492SIC

Fluid Power Valves and Hose Fittings

33259no page — parent 3325NAICS

Fluid Power Valves and Hose Fittings

many-to-one6 SIC codes share this NAICS code

3493SIC

Steel Springs, Except Wire

33259no page — parent 3325NAICS

Steel Springs, Except Wire

many-to-one6 SIC codes share this NAICS code

3494SIC

Valves and Pipe Fittings, Not Elsewhere Classified

33259no page — parent 3325NAICS

Valves and Pipe Fittings, Not Elsewhere Classified

many-to-one6 SIC codes share this NAICS code

3495SIC

Wire Springs

33259no page — parent 3325NAICS

Wire Springs

many-to-one6 SIC codes share this NAICS code

3496SIC

Miscellaneous Fabricated Wire Products

33159no page — parent 3315NAICS

Miscellaneous Fabricated Wire Products

many-to-one3 SIC codes share this NAICS code

3497SIC

Metal Foil and Leaf

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3498SIC

Fabricated Pipe and Pipe Fittings

33291NAICS

Metal Valve Manufacturing

many-to-one4 SIC codes share this NAICS code

3499SIC

Fabricated Metal Products, Not Elsewhere Classified

33299NAICS

All Other Fabricated Metal Product Manufacturing

many-to-one4 SIC codes share this NAICS code

3511SIC

Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units

33361NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing

many-to-one3 SIC codes share this NAICS code

3519SIC

Internal Combustion Engines, Not Elsewhere Classified

33361NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing

many-to-one3 SIC codes share this NAICS code

3523SIC

Farm Machinery and Equipment

33311NAICS

Agricultural Implement Manufacturing

many-to-one2 SIC codes share this NAICS code

3524SIC

Lawn and Garden Tractors and Home Lawn and Garden Equipment

33311NAICS

Agricultural Implement Manufacturing

many-to-one2 SIC codes share this NAICS code

3531SIC

Construction Machinery and Equipment

33312NAICS

Construction Machinery Manufacturing

one-to-one

3532SIC

Mining Machinery and Equipment, Except Oil and Gas Field Machinery and Equipment

33313NAICS

Mining and Oil and Gas Field Machinery Manufacturing

many-to-one2 SIC codes share this NAICS code

3533SIC

Oil and Gas Field Machinery and Equipment

33313NAICS

Mining and Oil and Gas Field Machinery Manufacturing

many-to-one2 SIC codes share this NAICS code

3534SIC

Elevators and Moving Stairways

33331NAICS

Commercial and Service Industry Machinery Manufacturing

many-to-one4 SIC codes share this NAICS code

3535SIC

Conveyors and Conveying Equipment

33331NAICS

Commercial and Service Industry Machinery Manufacturing

many-to-one4 SIC codes share this NAICS code

3536SIC

Overhead Traveling Cranes, Hoists, and Monorail Systems

33331NAICS

Commercial and Service Industry Machinery Manufacturing

many-to-one4 SIC codes share this NAICS code

3537SIC

Industrial Trucks, Tractors, Trailers, and Stackers

33331NAICS

Commercial and Service Industry Machinery Manufacturing

many-to-one4 SIC codes share this NAICS code

3541SIC

Machine Tools, Metal Cutting Types

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3542SIC

Machine Tools, Metal Forming Types

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3543SIC

Industrial Patterns

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3544SIC

Special Dies and Tools, Die Sets, Jigs and Fixtures, and Industrial Molds

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3545SIC

Cutting Tools, Machine Tool Accessories, and Machinists' Precision Measuring Devices

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3546SIC

Power-Driven Handtools

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3547SIC

Rolling Mill Machinery and Equipment

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3548SIC

Electric and Gas Welding and Soldering Equipment

33251NAICS

Hardware Manufacturing

many-to-one12 SIC codes share this NAICS code

3549SIC

Metalworking Machinery, Not Elsewhere Classified

33259no page — parent 3325NAICS

Metalworking Machinery, Not Elsewhere Classified

many-to-one6 SIC codes share this NAICS code

3552SIC

Textile Machinery

33292no page — parent 3329NAICS

Textile Machinery

many-to-one2 SIC codes share this NAICS code

3553SIC

Woodworking Machinery

33211NAICS

Forging and Stamping

one-to-one

3554SIC

Paper Industries Machinery

33291NAICS

Metal Valve Manufacturing

many-to-one4 SIC codes share this NAICS code

3555SIC

Printing Trades Machinery and Equipment

33291NAICS

Metal Valve Manufacturing

many-to-one4 SIC codes share this NAICS code

3556SIC

Food Products Machinery

33291NAICS

Metal Valve Manufacturing

many-to-one4 SIC codes share this NAICS code

3559SIC

Special Industry Machinery, Not Elsewhere Classified

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3561SIC

Pumps and Pumping Equipment

33391NAICS

Pump and Compressor Manufacturing

many-to-one5 SIC codes share this NAICS code

3562SIC

Ball and Roller Bearings

33591NAICS

Battery Manufacturing

many-to-one3 SIC codes share this NAICS code

3563SIC

Air and Gas Compressors

33391NAICS

Pump and Compressor Manufacturing

many-to-one5 SIC codes share this NAICS code

3564SIC

Industrial and Commercial Fans and Blowers and Air Purification Equipment

33391NAICS

Pump and Compressor Manufacturing

many-to-one5 SIC codes share this NAICS code

3565SIC

Packaging Machinery

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3566SIC

Speed Changers, Industrial High-Speed Drives, and Gears

33361NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing

many-to-one3 SIC codes share this NAICS code

3567SIC

Industrial Process Furnaces and Ovens

33391NAICS

Pump and Compressor Manufacturing

many-to-one5 SIC codes share this NAICS code

3568SIC

Mechanical Power Transmission Equipment, Not Elsewhere Classified

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3569SIC

General Industrial Machinery and Equipment, Not Elsewhere Classified

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3571SIC

Electronic Computers

33411NAICS

Computer and Peripheral Equipment Manufacturing

many-to-one5 SIC codes share this NAICS code

3572SIC

Computer Storage Devices

33411NAICS

Computer and Peripheral Equipment Manufacturing

many-to-one5 SIC codes share this NAICS code

3575SIC

Computer Terminals

33411NAICS

Computer and Peripheral Equipment Manufacturing

many-to-one5 SIC codes share this NAICS code

3577SIC

Computer Peripheral Equipment, Not Elsewhere Classified

33411NAICS

Computer and Peripheral Equipment Manufacturing

many-to-one5 SIC codes share this NAICS code

3578SIC

Calculating and Accounting Machines, Except Electronic Computers

33411NAICS

Computer and Peripheral Equipment Manufacturing

many-to-one5 SIC codes share this NAICS code

3579SIC

Office Machines, Not Elsewhere Classified

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3581SIC

Automatic Vending Machines

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3585SIC

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment

33341NAICS

HVAC and Commercial Refrigeration Equipment Manufacturing

one-to-one

3586SIC

Measuring and Dispensing Pumps

33391NAICS

Pump and Compressor Manufacturing

many-to-one5 SIC codes share this NAICS code

3589SIC

Service Industry Machinery, Not Elsewhere Classified

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3592SIC

Carburetors, Pistons, Piston Rings, and Valves

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3593SIC

Fluid Power Cylinders and Actuators

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3594SIC

Fluid Power Pumps and Motors

33392NAICS

Material Handling Equipment Manufacturing

many-to-one2 SIC codes share this NAICS code

3596SIC

Scales and Balances, Except Laboratory

33392NAICS

Material Handling Equipment Manufacturing

many-to-one2 SIC codes share this NAICS code

3599SIC

Industrial and Commercial Machinery and Equipment, Not Elsewhere Classified

33399NAICS

All Other General Purpose Machinery Manufacturing

many-to-one10 SIC codes share this NAICS code

3612SIC

Power, Distribution, and Specialty Transformers

33511NAICS

Electric Lamp Bulb and Part Manufacturing

many-to-one6 SIC codes share this NAICS code

3613SIC

Switchgear and Switchboard Apparatus

33511NAICS

Electric Lamp Bulb and Part Manufacturing

many-to-one6 SIC codes share this NAICS code

3621SIC

Motors and Generators

33512NAICS

Lighting Equipment Manufacturing

many-to-one4 SIC codes share this NAICS code

3625SIC

Relays and Industrial Controls

33511NAICS

Electric Lamp Bulb and Part Manufacturing

many-to-one6 SIC codes share this NAICS code

3629SIC

Electrical Industrial Apparatus, Not Elsewhere Classified

33519no page — parent 3351NAICS

Electrical Industrial Apparatus, Not Elsewhere Classified

one-to-one

3631SIC

Household Cooking Equipment

33521NAICS

Small Electrical Appliance Manufacturing

many-to-one5 SIC codes share this NAICS code

3632SIC

Household Refrigerators and Home and Farm Freezers

33521NAICS

Small Electrical Appliance Manufacturing

many-to-one5 SIC codes share this NAICS code

3633SIC

Household Laundry Equipment

33521NAICS

Small Electrical Appliance Manufacturing

many-to-one5 SIC codes share this NAICS code

3634SIC

Electric Housewares and Fans

33521NAICS

Small Electrical Appliance Manufacturing

many-to-one5 SIC codes share this NAICS code

3635SIC

Household Vacuum Cleaners

33521NAICS

Small Electrical Appliance Manufacturing

many-to-one5 SIC codes share this NAICS code

3639SIC

Household Appliances, Not Elsewhere Classified

33529no page — parent 3352NAICS

Household Appliances, Not Elsewhere Classified

one-to-one

3641SIC

Electric Lamp Bulbs and Tubes

33511NAICS

Electric Lamp Bulb and Part Manufacturing

many-to-one6 SIC codes share this NAICS code

3643SIC

Current-Carrying Wiring Devices

33511NAICS

Electric Lamp Bulb and Part Manufacturing

many-to-one6 SIC codes share this NAICS code

3644SIC

Noncurrent-Carrying Wiring Devices

33511NAICS

Electric Lamp Bulb and Part Manufacturing

many-to-one6 SIC codes share this NAICS code

3645SIC

Residential Electric Lighting Fixtures

33512NAICS

Lighting Equipment Manufacturing

many-to-one4 SIC codes share this NAICS code

3646SIC

Commercial, Industrial, and Institutional Electric Lighting Fixtures

33512NAICS

Lighting Equipment Manufacturing

many-to-one4 SIC codes share this NAICS code

3647SIC

Vehicular Lighting Equipment

33592NAICS

Communication and Energy Wire and Cable Manufacturing

many-to-one2 SIC codes share this NAICS code

3648SIC

Lighting Equipment, Not Elsewhere Classified

33512NAICS

Lighting Equipment Manufacturing

many-to-one4 SIC codes share this NAICS code

3651SIC

Household Audio and Video Equipment

33431NAICS

Audio and Video Equipment Manufacturing

one-to-one

3652SIC

Phonograph Records and Prerecorded Audio Tapes and Disks

33461NAICS

Manufacturing and Reproducing Magnetic and Optical Media

many-to-one2 SIC codes share this NAICS code

3661SIC

Telephone and Telegraph Apparatus

33421NAICS

Telephone Apparatus Manufacturing

many-to-one2 SIC codes share this NAICS code

3663SIC

Radio and Television Broadcasting and Communications Equipment

33421NAICS

Telephone Apparatus Manufacturing

many-to-one2 SIC codes share this NAICS code

3669SIC

Communications Equipment, Not Elsewhere Classified

33429no page — parent 3342NAICS

Communications Equipment, Not Elsewhere Classified

one-to-one

3671SIC

Electron Tubes

33441NAICS

Semiconductor and Other Electronic Component Manufacturing

many-to-one7 SIC codes share this NAICS code

3672SIC

Printed Circuit Boards

33441NAICS

Semiconductor and Other Electronic Component Manufacturing

many-to-one7 SIC codes share this NAICS code

3674SIC

Semiconductors and Related Devices

33441NAICS

Semiconductor and Other Electronic Component Manufacturing

many-to-one7 SIC codes share this NAICS code

3675SIC

Electronic Capacitors

33441NAICS

Semiconductor and Other Electronic Component Manufacturing

many-to-one7 SIC codes share this NAICS code

3676SIC

Electronic Resistors

33441NAICS

Semiconductor and Other Electronic Component Manufacturing

many-to-one7 SIC codes share this NAICS code

3677SIC

Electronic Coils, Transformers, and Other Inductors

33441NAICS

Semiconductor and Other Electronic Component Manufacturing

many-to-one7 SIC codes share this NAICS code

3678SIC

Electronic Connectors

33441NAICS

Semiconductor and Other Electronic Component Manufacturing

many-to-one7 SIC codes share this NAICS code

3679SIC

Electronic Components, Not Elsewhere Classified

33449no page — parent 3344NAICS

Electronic Components, Not Elsewhere Classified

one-to-one

3691SIC

Storage Batteries

33591NAICS

Battery Manufacturing

many-to-one3 SIC codes share this NAICS code

3692SIC

Primary Batteries, Dry and Wet

33591NAICS

Battery Manufacturing

many-to-one3 SIC codes share this NAICS code

3694SIC

Electrical Equipment for Internal Combustion Engines

33599NAICS

All Other Electrical Equipment and Component Manufacturing

many-to-one2 SIC codes share this NAICS code

3695SIC

Magnetic and Optical Recording Media

33461NAICS

Manufacturing and Reproducing Magnetic and Optical Media

many-to-one2 SIC codes share this NAICS code

3699SIC

Electrical Machinery, Equipment, and Supplies, Not Elsewhere Classified

33599NAICS

All Other Electrical Equipment and Component Manufacturing

many-to-one2 SIC codes share this NAICS code

3711SIC

Motor Vehicles and Passenger Car Bodies

33611NAICS

Automobile and Light Duty Motor Vehicle Manufacturing

one-to-one

3713SIC

Truck and Bus Bodies

33612NAICS

Heavy Duty Truck Manufacturing

many-to-one3 SIC codes share this NAICS code

3714SIC

Motor Vehicle Parts and Accessories

33636NAICS

Motor Vehicle Seating and Interior Trim Manufacturing

one-to-one

3715SIC

Truck Trailers

33612NAICS

Heavy Duty Truck Manufacturing

many-to-one3 SIC codes share this NAICS code

3716SIC

Motor Homes

33612NAICS

Heavy Duty Truck Manufacturing

many-to-one3 SIC codes share this NAICS code

3721SIC

Aircraft

33641NAICS

Aerospace Product and Parts Manufacturing

many-to-one3 SIC codes share this NAICS code

3724SIC

Aircraft Engines and Engine Parts

33641NAICS

Aerospace Product and Parts Manufacturing

many-to-one3 SIC codes share this NAICS code

3728SIC

Aircraft Parts and Auxiliary Equipment, Not Elsewhere Classified

33641NAICS

Aerospace Product and Parts Manufacturing

many-to-one3 SIC codes share this NAICS code

3731SIC

Ship Building and Repairing

33661NAICS

Ship Building and Repairing

many-to-one2 SIC codes share this NAICS code

3732SIC

Boat Building and Repairing

33661NAICS

Ship Building and Repairing

many-to-one2 SIC codes share this NAICS code

3743SIC

Railroad Equipment

33651NAICS

Railroad Rolling Stock Manufacturing

one-to-one

3751SIC

Motorcycles, Bicycles, and Parts

33699NAICS

Other Transportation Equipment Manufacturing

many-to-one3 SIC codes share this NAICS code

3792SIC

Travel Trailers and Campers

33621NAICS

Motor Vehicle Body and Trailer Manufacturing

one-to-one

3795SIC

Tanks and Tank Components

33699NAICS

Other Transportation Equipment Manufacturing

many-to-one3 SIC codes share this NAICS code

3799SIC

Transportation Equipment, Not Elsewhere Classified

33699NAICS

Other Transportation Equipment Manufacturing

many-to-one3 SIC codes share this NAICS code

3812SIC

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical Systems and Instruments

33451NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

many-to-one9 SIC codes share this NAICS code

3821SIC

Laboratory Apparatus and Furniture

33451NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

many-to-one9 SIC codes share this NAICS code

3822SIC

Automatic Controls for Regulating Residential and Commercial Environments and Appliances

33451NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

many-to-one9 SIC codes share this NAICS code

3824SIC

Totalizing Fluid Meters and Counting Devices

33451NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

many-to-one9 SIC codes share this NAICS code

3825SIC

Instruments for Measuring and Testing of Electricity and Electrical Signals

33451NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

many-to-one9 SIC codes share this NAICS code

3826SIC

Laboratory Analytical Instruments

33451NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

many-to-one9 SIC codes share this NAICS code

3827SIC

Optical Instruments and Lenses

33451NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

many-to-one9 SIC codes share this NAICS code

3829SIC

Measuring and Controlling Devices, Not Elsewhere Classified

33459no page — parent 3345NAICS

Measuring and Controlling Devices, Not Elsewhere Classified

one-to-one

3841SIC

Surgical and Medical Instruments and Apparatus

33911NAICS

Medical Equipment and Supplies Manufacturing

many-to-one4 SIC codes share this NAICS code

3842SIC

Orthopedic, Prosthetic, and Surgical Appliances and Supplies

33911NAICS

Medical Equipment and Supplies Manufacturing

many-to-one4 SIC codes share this NAICS code

3843SIC

Dental Equipment and Supplies

33911NAICS

Medical Equipment and Supplies Manufacturing

many-to-one4 SIC codes share this NAICS code

3844SIC

X-Ray Apparatus and Tubes and Related Irradiation Apparatus

33451NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

many-to-one9 SIC codes share this NAICS code

3845SIC

Electromedical and Electrotherapeutic Apparatus

33451NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

many-to-one9 SIC codes share this NAICS code

3851SIC

Ophthalmic Goods

33911NAICS

Medical Equipment and Supplies Manufacturing

many-to-one4 SIC codes share this NAICS code

3861SIC

Photographic Equipment and Supplies

32531NAICS

Fertilizer Manufacturing

many-to-one4 SIC codes share this NAICS code

3873SIC

Watches, Clocks, Clockwork Operated Devices, and Parts

33491no page — parent 334NAICS

Watches, Clocks, Clockwork Operated Devices, and Parts

one-to-one

3911SIC

Jewelry, Precious Metal

33991NAICS

Jewelry and Silverware Manufacturing

many-to-one2 SIC codes share this NAICS code

3914SIC

Silverware, Plated Ware, and Stainless Steel Ware

33221NAICS

Cutlery and Handtool Manufacturing

many-to-one3 SIC codes share this NAICS code

3915SIC

Jewelers' Findings and Materials, and Lapidary Work

33999NAICS

All Other Miscellaneous Manufacturing

many-to-one6 SIC codes share this NAICS code

3931SIC

Musical Instruments

33992NAICS

Sporting and Athletic Goods Manufacturing

one-to-one

3942SIC

Dolls and Stuffed Toys

33993NAICS

Doll, Toy, and Game Manufacturing

many-to-one2 SIC codes share this NAICS code

3944SIC

Games, Toys, and Children's Vehicles, Except Dolls and Bicycles

33993NAICS

Doll, Toy, and Game Manufacturing

many-to-one2 SIC codes share this NAICS code

3949SIC

Sporting and Athletic Goods, Not Elsewhere Classified

33999NAICS

All Other Miscellaneous Manufacturing

many-to-one6 SIC codes share this NAICS code

3951SIC

Pens, Mechanical Pencils, and Parts

33994NAICS

Office Supplies (except Paper) Manufacturing

many-to-one4 SIC codes share this NAICS code

3952SIC

Lead Pencils, Crayons, and Artists' Materials

33994NAICS

Office Supplies (except Paper) Manufacturing

many-to-one4 SIC codes share this NAICS code

3953SIC

Marking Devices

32311NAICS

Printing

many-to-one9 SIC codes share this NAICS code

3955SIC

Carbon Paper and Inked Ribbons

33994NAICS

Office Supplies (except Paper) Manufacturing

many-to-one4 SIC codes share this NAICS code

3961SIC

Costume Jewelry and Costume Novelties, Except Precious Metal

33991NAICS

Jewelry and Silverware Manufacturing

many-to-one2 SIC codes share this NAICS code

3965SIC

Fasteners, Buttons, Needles, and Pins

33999NAICS

All Other Miscellaneous Manufacturing

many-to-one6 SIC codes share this NAICS code

3991SIC

Brooms and Brushes

33994NAICS

Office Supplies (except Paper) Manufacturing

many-to-one4 SIC codes share this NAICS code

3993SIC

Signs and Advertising Specialties

33999NAICS

All Other Miscellaneous Manufacturing

many-to-one6 SIC codes share this NAICS code

3995SIC

Burial Caskets

33999NAICS

All Other Miscellaneous Manufacturing

many-to-one6 SIC codes share this NAICS code

3996SIC

Linoleum, Asphalted-Felt-Base, and Other Hard Surface Floor Coverings, Not Elsewhere Classified

33499no page — parent 334NAICS

Linoleum, Asphalted-Felt-Base, and Other Hard Surface Floor Coverings, Not Elsewhere Classified

one-to-one

3999SIC

Manufacturing Industries, Not Elsewhere Classified

33999NAICS

All Other Miscellaneous Manufacturing

many-to-one6 SIC codes share this NAICS code

4011SIC

Railroads, Line-Haul Operating

48211NAICS

Rail Transportation

many-to-one2 SIC codes share this NAICS code

4013SIC

Railroad Switching and Terminal Establishments

48211NAICS

Rail Transportation

many-to-one2 SIC codes share this NAICS code

4111SIC

Local and Suburban Transit

48511NAICS

Urban Transit Systems

many-to-one3 SIC codes share this NAICS code

4119SIC

Local Passenger Transportation, Not Elsewhere Classified

48521NAICS

Interurban and Rural Bus Transportation

many-to-one4 SIC codes share this NAICS code

4121SIC

Taxicabs

48521NAICS

Interurban and Rural Bus Transportation

many-to-one4 SIC codes share this NAICS code

4131SIC

Intercity and Rural Bus Transportation

48511NAICS

Urban Transit Systems

many-to-one3 SIC codes share this NAICS code

4141SIC

Local Bus Charter Service

48521NAICS

Interurban and Rural Bus Transportation

many-to-one4 SIC codes share this NAICS code

4142SIC

Bus Charter Service, Except Local

48521NAICS

Interurban and Rural Bus Transportation

many-to-one4 SIC codes share this NAICS code

4151SIC

School Buses

48511NAICS

Urban Transit Systems

many-to-one3 SIC codes share this NAICS code

4173SIC

Terminal and Service Facilities for Motor Vehicle Passenger Transportation

48541NAICS

School and Employee Bus Transportation

one-to-one

4212SIC

Local Trucking Without Storage

48411NAICS

General Freight Trucking, Local

many-to-one3 SIC codes share this NAICS code

4213SIC

Trucking, Except Local

48411NAICS

General Freight Trucking, Local

many-to-one3 SIC codes share this NAICS code

4214SIC

Local Trucking With Storage

48411NAICS

General Freight Trucking, Local

many-to-one3 SIC codes share this NAICS code

4215SIC

Courier Services, Except by Air

49211NAICS

Couriers and Express Delivery Services

many-to-one2 SIC codes share this NAICS code

4221SIC

Farm Product Warehousing and Storage

49311NAICS

General Warehousing and Storage

one-to-one

4222SIC

Refrigerated Warehousing and Storage

49312NAICS

Refrigerated Warehousing and Storage

one-to-one

4225SIC

General Warehousing and Storage

49319NAICS

Other Warehousing and Storage

many-to-one2 SIC codes share this NAICS code

4226SIC

Special Warehousing and Storage, Not Elsewhere Classified

49319NAICS

Other Warehousing and Storage

many-to-one2 SIC codes share this NAICS code

4231SIC

Terminal and Joint Terminal Maintenance Facilities for Motor Freight Transportation

49221NAICS

Local Messengers and Local Delivery

one-to-one

4311SIC

United States Postal Service

49111NAICS

Postal Service

one-to-one

4412SIC

Deep Sea Foreign Transportation of Freight

48311NAICS

Deep Sea, Coastal, and Great Lakes Water Transportation

many-to-one3 SIC codes share this NAICS code

4424SIC

Deep Sea Domestic Transportation of Freight

48311NAICS

Deep Sea, Coastal, and Great Lakes Water Transportation

many-to-one3 SIC codes share this NAICS code

4481SIC

Deep Sea Transportation of Passengers, Except by Ferry

48321NAICS

Inland Water Transportation

many-to-one2 SIC codes share this NAICS code

4482SIC

Ferries

48321NAICS

Inland Water Transportation

many-to-one2 SIC codes share this NAICS code

4489SIC

Water Transportation of Passengers, Not Elsewhere Classified

48311NAICS

Deep Sea, Coastal, and Great Lakes Water Transportation

many-to-one3 SIC codes share this NAICS code

4491SIC

Marine Cargo Handling

48831NAICS

Port and Harbor Operations

one-to-one

4492SIC

Towing and Tugboat Services

48839NAICS

Other Support Activities for Water Transportation

many-to-one2 SIC codes share this NAICS code

4493SIC

Marinas

81293NAICS

Parking Lots and Garages

one-to-one

4499SIC

Water Transportation Services, Not Elsewhere Classified

48839NAICS

Other Support Activities for Water Transportation

many-to-one2 SIC codes share this NAICS code

4512SIC

Air Transportation, Scheduled

48111NAICS

Scheduled Air Transportation

one-to-one

4513SIC

Air Courier Services

49211NAICS

Couriers and Express Delivery Services

many-to-one2 SIC codes share this NAICS code

4522SIC

Air Transportation, Nonscheduled

48121NAICS

Nonscheduled Chartered Passenger Air Transportation

one-to-one

4581SIC

Airports, Flying Fields, and Airport Terminal Services

48819NAICS

Other Support Activities for Air Transportation

one-to-one

4612SIC

Crude Petroleum Pipelines

48611NAICS

Pipeline Transportation of Crude Oil

one-to-one

4613SIC

Refined Petroleum Pipelines

48691NAICS

Other Pipeline Transportation

many-to-one2 SIC codes share this NAICS code

4619SIC

Pipelines, Not Elsewhere Classified

48691NAICS

Other Pipeline Transportation

many-to-one2 SIC codes share this NAICS code

4724SIC

Travel Agencies

56151NAICS

Travel Agencies

one-to-one

4725SIC

Tour Operators

56152NAICS

Tour Operators

one-to-one

4729SIC

Arrangement of Passenger Transportation, Not Elsewhere Classified

48599NAICS

Other Transit and Ground Passenger Transportation

one-to-one

4731SIC

Arrangement of Transportation of Freight and Cargo

48849NAICS

Other Support Activities for Road Transportation

many-to-one4 SIC codes share this NAICS code

4741SIC

Rental of Railroad Cars

48821NAICS

Support Activities for Rail Transportation

one-to-one

4783SIC

Packing and Crating

48849NAICS

Other Support Activities for Road Transportation

many-to-one4 SIC codes share this NAICS code

4785SIC

Fixed Facilities and Inspection and Weighing Services for Motor Vehicle Transportation

48849NAICS

Other Support Activities for Road Transportation

many-to-one4 SIC codes share this NAICS code

4789SIC

Transportation Services, Not Elsewhere Classified

48849NAICS

Other Support Activities for Road Transportation

many-to-one4 SIC codes share this NAICS code

4812SIC

Radiotelephone Communications

51711NAICS

Wired Telecommunications Carriers

many-to-one3 SIC codes share this NAICS code

4813SIC

Telephone Communications, Except Radiotelephone

51711NAICS

Wired Telecommunications Carriers

many-to-one3 SIC codes share this NAICS code

4822SIC

Telegraph and Other Message Communications

51711NAICS

Wired Telecommunications Carriers

many-to-one3 SIC codes share this NAICS code

4832SIC

Radio Broadcasting Stations

51512no page — parent 51NAICS

Radio Broadcasting Stations

one-to-one

4833SIC

Television Broadcasting Stations

51521no page — parent 51NAICS

Television Broadcasting Stations

one-to-one

4841SIC

Cable and Other Pay Television Services

51511no page — parent 51NAICS

Cable and Other Pay Television Services

one-to-one

4899SIC

Communications Services, Not Elsewhere Classified

51799no page — parent 517NAICS

Communications Services, Not Elsewhere Classified

one-to-one

4911SIC

Electric Services

22111NAICS

Electric Power Generation

many-to-one3 SIC codes share this NAICS code

4922SIC

Natural Gas Transmission

22112NAICS

Electric Power Transmission, Control, and Distribution

many-to-one3 SIC codes share this NAICS code

4923SIC

Natural Gas Transmission and Distribution

22112NAICS

Electric Power Transmission, Control, and Distribution

many-to-one3 SIC codes share this NAICS code

4924SIC

Natural Gas Distribution

22112NAICS

Electric Power Transmission, Control, and Distribution

many-to-one3 SIC codes share this NAICS code

4925SIC

Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or Distribution

22113no page — parent 2211NAICS

Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or Distribution

one-to-one

4931SIC

Electric and Other Services Combined

22111NAICS

Electric Power Generation

many-to-one3 SIC codes share this NAICS code

4932SIC

Gas and Other Services Combined

22111NAICS

Electric Power Generation

many-to-one3 SIC codes share this NAICS code

4939SIC

Combination Utilities, Not Elsewhere Classified

22119no page — parent 2211NAICS

Combination Utilities, Not Elsewhere Classified

one-to-one

4941SIC

Water Supply

22131NAICS

Water Supply and Irrigation Systems

one-to-one

4952SIC

Sewerage Systems

22132NAICS

Sewage Treatment Facilities

one-to-one

4953SIC

Refuse Systems

56292NAICS

Materials Recovery Facilities

one-to-one

4959SIC

Sanitary Services, Not Elsewhere Classified

22139no page — parent 2213NAICS

Sanitary Services, Not Elsewhere Classified

one-to-one

4961SIC

Steam and Air-Conditioning Supply

22133NAICS

Steam and Air-Conditioning Supply

one-to-one

4971SIC

Irrigation Systems

22141no page — parent 221NAICS

Irrigation Systems

one-to-one

5012SIC

Automobiles and Other Motor Vehicles

42311NAICS

Automobile and Other Motor Vehicle Merchant Wholesalers

many-to-one4 SIC codes share this NAICS code

5013SIC

Motor Vehicle Supplies and New Parts

42311NAICS

Automobile and Other Motor Vehicle Merchant Wholesalers

many-to-one4 SIC codes share this NAICS code

5014SIC

Tires and Tubes

42311NAICS

Automobile and Other Motor Vehicle Merchant Wholesalers

many-to-one4 SIC codes share this NAICS code

5015SIC

Motor Vehicle Parts, Used

42311NAICS

Automobile and Other Motor Vehicle Merchant Wholesalers

many-to-one4 SIC codes share this NAICS code

5021SIC

Furniture

42321NAICS

Furniture Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5023SIC

Home Furnishings

42321NAICS

Furniture Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5031SIC

Lumber, Plywood, Millwork, and Wood Panels

42331NAICS

Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers

one-to-one

5032SIC

Brick, Stone, and Related Construction Materials

42332NAICS

Brick, Stone, and Related Construction Material Merchant Wholesalers

one-to-one

5033SIC

Roofing, Siding, and Insulation Materials

42333NAICS

Roofing, Siding, and Insulation Material Merchant Wholesalers

one-to-one

5039SIC

Construction Materials, Not Elsewhere Classified

42339NAICS

Other Construction Material Merchant Wholesalers

one-to-one

5043SIC

Photographic Equipment and Supplies

42346NAICS

Ophthalmic Goods Merchant Wholesalers

one-to-one

5044SIC

Office Equipment

42342NAICS

Office Equipment Merchant Wholesalers

one-to-one

5045SIC

Computers and Computer Peripheral Equipment and Software

42343NAICS

Computer and Computer Peripheral Equipment and Software Merchant Wholesalers

one-to-one

5046SIC

Commercial Equipment, Not Elsewhere Classified

42349no page — parent 4234NAICS

Commercial Equipment, Not Elsewhere Classified

many-to-one3 SIC codes share this NAICS code

5047SIC

Medical, Dental, and Hospital Equipment and Supplies

42345NAICS

Medical and Hospital Equipment and Supplies Merchant Wholesalers

one-to-one

5048SIC

Ophthalmic Goods

42349no page — parent 4234NAICS

Ophthalmic Goods

many-to-one3 SIC codes share this NAICS code

5049SIC

Professional Equipment and Supplies, Not Elsewhere Classified

42349no page — parent 4234NAICS

Professional Equipment and Supplies, Not Elsewhere Classified

many-to-one3 SIC codes share this NAICS code

5051SIC

Metals Service Centers and Offices

42351NAICS

Metal Service Centers and Other Metal Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5052SIC

Coal and Other Minerals and Ores

42351NAICS

Metal Service Centers and Other Metal Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5063SIC

Electrical Apparatus and Equipment Wiring Supplies, and Construction Materials

42361NAICS

Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

one-to-one

5064SIC

Electrical Appliances, Television and Radio Sets

42362NAICS

Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers

one-to-one

5065SIC

Electronic Parts and Equipment, Not Elsewhere Classified

42369no page — parent 4236NAICS

Electronic Parts and Equipment, Not Elsewhere Classified

one-to-one

5072SIC

Hardware

42371NAICS

Hardware Merchant Wholesalers

one-to-one

5074SIC

Plumbing and Heating Equipment and Supplies (Hydronics)

42372NAICS

Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

one-to-one

5075SIC

Warm Air Heating and Air-Conditioning Equipment and Supplies

42373NAICS

Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers

one-to-one

5078SIC

Refrigeration Equipment and Supplies

42379no page — parent 4237NAICS

Refrigeration Equipment and Supplies

one-to-one

5082SIC

Construction and Mining (Except Petroleum) Machinery and Equipment

42381NAICS

Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers

one-to-one

5083SIC

Farm and Garden Machinery and Equipment

42382NAICS

Farm and Garden Machinery and Equipment Merchant Wholesalers

one-to-one

5084SIC

Industrial Machinery and Equipment

42383NAICS

Industrial and Personal Service Paper Merchant Wholesalers

one-to-one

5085SIC

Industrial Supplies

42384NAICS

Industrial Machinery and Equipment Merchant Wholesalers

one-to-one

5087SIC

Service Establishment Equipment and Supplies

42386NAICS

Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers

one-to-one

5088SIC

Transportation Equipment and Supplies, Except Motor Vehicles

42389NAICS

Other Industrial Machinery and Equipment Merchant Wholesalers

one-to-one

5091SIC

Sporting and Recreational Goods and Supplies

42391NAICS

Sporting and Recreational Goods and Supplies Merchant Wholesalers

one-to-one

5092SIC

Toys and Hobby Goods and Supplies

42392NAICS

Toy and Hobby Goods and Supplies Merchant Wholesalers

one-to-one

5093SIC

Scrap and Waste Materials

42393NAICS

Recyclable Material Merchant Wholesalers

one-to-one

5094SIC

Jewelry, Watches, Precious Stones, and Precious Metals

42399NAICS

Other Miscellaneous Durable Goods Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5099SIC

Durable Goods, Not Elsewhere Classified

42399NAICS

Other Miscellaneous Durable Goods Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5111SIC

Printing and Writing Paper

42411NAICS

Printing and Writing Paper Merchant Wholesalers

one-to-one

5112SIC

Stationery and Office Supplies

42412NAICS

Stationery and Office Supplies Merchant Wholesalers

one-to-one

5113SIC

Industrial and Personal Service Paper

42413NAICS

Industrial and Personal Service Paper Merchant Wholesalers

one-to-one

5122SIC

Drugs, Drug Proprietaries, and Druggists' Sundries

42421NAICS

Drugs and Druggists' Sundries Merchant Wholesalers

one-to-one

5131SIC

Piece Goods, Notions, and Other Dry Goods

42431NAICS

Piece Goods, Notions, and Other Dry Goods Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5136SIC

Men's and Boys' Clothing and Furnishings

42431NAICS

Piece Goods, Notions, and Other Dry Goods Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5137SIC

Women's, Children's, and Infants' Clothing and Accessories

42432NAICS

Men's and Boys' Clothing and Furnishings Merchant Wholesalers

one-to-one

5139SIC

Footwear

42439no page — parent 4243NAICS

Footwear

one-to-one

5141SIC

Groceries, General Line

42441NAICS

General Line Grocery Merchant Wholesalers

one-to-one

5142SIC

Packaged Frozen Foods

42442NAICS

Packaged Frozen Food Merchant Wholesalers

one-to-one

5143SIC

Dairy Products, Except Dried or Canned

42443NAICS

Dairy Product (except Dried or Canned) Merchant Wholesalers

one-to-one

5144SIC

Poultry and Poultry Products

42444NAICS

Poultry and Poultry Product Merchant Wholesalers

one-to-one

5145SIC

Confectionery

42445NAICS

Confectionery Merchant Wholesalers

one-to-one

5146SIC

Fish and Seafoods

42446NAICS

Fish and Seafood Merchant Wholesalers

one-to-one

5147SIC

Meats and Meat Products

42449NAICS

Other Grocery and Related Products Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5148SIC

Fresh Fruits and Vegetables

42448NAICS

Fresh Fruit and Vegetable Merchant Wholesalers

one-to-one

5149SIC

Groceries and Related Products, Not Elsewhere Classified

42449NAICS

Other Grocery and Related Products Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5159SIC

Farm-Product Raw Materials, Not Elsewhere Classified

42459NAICS

Other Farm Product Raw Material Merchant Wholesalers

one-to-one

5162SIC

Plastics Materials and Basic Forms and Shapes

42469NAICS

Other Chemical and Allied Products Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5169SIC

Chemicals and Allied Products, Not Elsewhere Classified

42469NAICS

Other Chemical and Allied Products Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5171SIC

Petroleum Bulk Stations and Terminals

42471NAICS

Petroleum Bulk Stations and Terminals

one-to-one

5172SIC

Petroleum and Petroleum Products Wholesalers, Except Bulk Stations and Terminals

42479no page — parent 4247NAICS

Petroleum and Petroleum Products Wholesalers, Except Bulk Stations and Terminals

one-to-one

5191SIC

Farm Supplies

42491NAICS

Farm Supplies Merchant Wholesalers

one-to-one

5192SIC

Books, Periodicals, and Newspapers

42492NAICS

Book, Periodical, and Newspaper Merchant Wholesalers

one-to-one

5193SIC

Flowers, Nursery Stock, and Florists' Supplies

42493NAICS

Flower, Nursery Stock, and Florists' Supplies Merchant Wholesalers

one-to-one

5194SIC

Tobacco and Tobacco Products

42494NAICS

Tobacco and Tobacco Product Merchant Wholesalers

one-to-one

5198SIC

Paints, Varnishes, and Supplies

42499NAICS

Other Miscellaneous Nondurable Goods Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5199SIC

Nondurable Goods, Not Elsewhere Classified

42499NAICS

Other Miscellaneous Nondurable Goods Merchant Wholesalers

many-to-one2 SIC codes share this NAICS code

5211SIC

Lumber and Other Building Materials Dealers

44411no page — parent 4441NAICS

Lumber and Other Building Materials Dealers

many-to-one2 SIC codes share this NAICS code

5251SIC

Hardware Stores

44411no page — parent 4441NAICS

Hardware Stores

many-to-one2 SIC codes share this NAICS code

5261SIC

Retail Nurseries, Lawn and Garden Supply Stores

45111no page — parent 44-45NAICS

Retail Nurseries, Lawn and Garden Supply Stores

many-to-one2 SIC codes share this NAICS code

5271SIC

Mobile Home Dealers

45391no page — parent 44-45NAICS

Mobile Home Dealers

one-to-one

5311SIC

Department Stores

45211no page — parent 44-45NAICS

Department Stores

one-to-one

5331SIC

Variety Stores

45299no page — parent 44-45NAICS

Variety Stores

many-to-one2 SIC codes share this NAICS code

5399SIC

Miscellaneous General Merchandise Stores

45299no page — parent 44-45NAICS

Miscellaneous General Merchandise Stores

many-to-one2 SIC codes share this NAICS code

5411SIC

Grocery Stores

44511NAICS

Supermarkets and Other Grocery Retailers (except Convenience Retailers)

one-to-one

5421SIC

Meat and Fish (Seafood) Markets, Including Freezer Provisioners

44521NAICS

Meat Retailers

many-to-one3 SIC codes share this NAICS code

5431SIC

Fruit and Vegetable Markets

44523NAICS

Fruit and Vegetable Retailers

one-to-one

5441SIC

Candy, Nut, and Confectionery Stores

44522NAICS

Fish and Seafood Retailers

one-to-one

5451SIC

Dairy Products Stores

44521NAICS

Meat Retailers

many-to-one3 SIC codes share this NAICS code

5461SIC

Retail Bakeries

31181NAICS

Bread and Bakery Product Manufacturing

many-to-one2 SIC codes share this NAICS code

5499SIC

Miscellaneous Food Stores

44529NAICS

Other Specialty Food Retailers

one-to-one

5511SIC

Motor Vehicle Dealers (New and Used)

44111NAICS

New Car Dealers

many-to-one2 SIC codes share this NAICS code

5521SIC

Motor Vehicle Dealers (Used Only)

44111NAICS

New Car Dealers

many-to-one2 SIC codes share this NAICS code

5531SIC

Auto and Home Supply Stores

44131NAICS

Automotive Parts and Accessories Retailers

one-to-one

5541SIC

Gasoline Service Stations

44711no page — parent 44-45NAICS

Gasoline Service Stations

many-to-one3 SIC codes share this NAICS code

5551SIC

Boat Dealers

44121NAICS

Recreational Vehicle Dealers

many-to-one2 SIC codes share this NAICS code

5561SIC

Recreational Vehicle Dealers

44121NAICS

Recreational Vehicle Dealers

many-to-one2 SIC codes share this NAICS code

5571SIC

Motorcycle Dealers

44122NAICS

Motorcycle, ATV, and All Other Motor Vehicle Dealers

one-to-one

5599SIC

Automotive Dealers, Not Elsewhere Classified

44129no page — parent 4412NAICS

Automotive Dealers, Not Elsewhere Classified

one-to-one

5611SIC

Men's and Boys' Clothing and Accessory Stores

44811no page — parent 44-45NAICS

Men's and Boys' Clothing and Accessory Stores

one-to-one

5621SIC

Women's Clothing Stores

44812no page — parent 44-45NAICS

Women's Clothing Stores

one-to-one

5641SIC

Children's and Infants' Wear Stores

44819no page — parent 44-45NAICS

Children's and Infants' Wear Stores

many-to-one4 SIC codes share this NAICS code

5651SIC

Family Clothing Stores

44819no page — parent 44-45NAICS

Family Clothing Stores

many-to-one4 SIC codes share this NAICS code

5661SIC

Shoe Stores

44821no page — parent 44-45NAICS

Shoe Stores

one-to-one

5699SIC

Miscellaneous Apparel and Accessory Stores

44819no page — parent 44-45NAICS

Miscellaneous Apparel and Accessory Stores

many-to-one4 SIC codes share this NAICS code

5712SIC

Furniture Stores

44211no page — parent 44-45NAICS

Furniture Stores

many-to-one2 SIC codes share this NAICS code

5713SIC

Floor Covering Stores

44221no page — parent 44-45NAICS

Floor Covering Stores

one-to-one

5714SIC

Drapery, Curtain, and Upholstery Stores

44211no page — parent 44-45NAICS

Drapery, Curtain, and Upholstery Stores

many-to-one2 SIC codes share this NAICS code

5719SIC

Miscellaneous Home Furnishings Stores

44219no page — parent 44-45NAICS

Miscellaneous Home Furnishings Stores

one-to-one

5722SIC

Household Appliance Stores

44311no page — parent 44-45NAICS

Household Appliance Stores

many-to-one2 SIC codes share this NAICS code

5731SIC

Radio, Television, and Consumer Electronics Stores

44311no page — parent 44-45NAICS

Radio, Television, and Consumer Electronics Stores

many-to-one2 SIC codes share this NAICS code

5734SIC

Computer and Computer Software Stores

44312no page — parent 44-45NAICS

Computer and Computer Software Stores

one-to-one

5735SIC

Record and Prerecorded Tape Stores

45122no page — parent 44-45NAICS

Record and Prerecorded Tape Stores

many-to-one3 SIC codes share this NAICS code

5736SIC

Musical Instrument Stores

45122no page — parent 44-45NAICS

Musical Instrument Stores

many-to-one3 SIC codes share this NAICS code

5812SIC

Eating Places

72211no page — parent 722NAICS

Eating Places

one-to-one

5813SIC

Drinking Places (Alcoholic Beverages)

72241NAICS

Drinking Places (Alcoholic Beverages)

one-to-one

5912SIC

Drug Stores and Proprietary Stores

44611no page — parent 44-45NAICS

Drug Stores and Proprietary Stores

one-to-one

5921SIC

Liquor Stores

44521NAICS

Meat Retailers

many-to-one3 SIC codes share this NAICS code

5941SIC

Sporting Goods Stores and Bicycle Shops

45111no page — parent 44-45NAICS

Sporting Goods Stores and Bicycle Shops

many-to-one2 SIC codes share this NAICS code

5942SIC

Book Stores

45121no page — parent 44-45NAICS

Book Stores

one-to-one

5943SIC

Stationery Stores

45322no page — parent 44-45NAICS

Stationery Stores

one-to-one

5944SIC

Jewelry Stores

44831no page — parent 44-45NAICS

Jewelry Stores

one-to-one

5945SIC

Hobby, Toy, and Game Shops

45112no page — parent 44-45NAICS

Hobby, Toy, and Game Shops

one-to-one

5946SIC

Camera and Photographic Supply Stores

44999no page — parent 449NAICS

Camera and Photographic Supply Stores

one-to-one

5947SIC

Gift, Novelty, and Souvenir Shops

81219NAICS

Other Personal Care Services

many-to-one3 SIC codes share this NAICS code

5948SIC

Luggage and Leather Goods Stores

44819no page — parent 44-45NAICS

Luggage and Leather Goods Stores

many-to-one4 SIC codes share this NAICS code

5961SIC

Catalog and Mail-Order Houses

45411no page — parent 44-45NAICS

Catalog and Mail-Order Houses

many-to-one4 SIC codes share this NAICS code

5962SIC

Automatic Merchandising Machine Operators

45411no page — parent 44-45NAICS

Automatic Merchandising Machine Operators

many-to-one4 SIC codes share this NAICS code

5963SIC

Direct Selling Establishments

45411no page — parent 44-45NAICS

Direct Selling Establishments

many-to-one4 SIC codes share this NAICS code

5983SIC

Fuel Oil Dealers

44711no page — parent 44-45NAICS

Fuel Oil Dealers

many-to-one3 SIC codes share this NAICS code

5984SIC

Liquefied Petroleum Gas (Bottled Gas) Dealers

44711no page — parent 44-45NAICS

Liquefied Petroleum Gas (Bottled Gas) Dealers

many-to-one3 SIC codes share this NAICS code

5992SIC

Florists

45411no page — parent 44-45NAICS

Florists

many-to-one4 SIC codes share this NAICS code

5993SIC

Tobacco Stores and Stands

45991NAICS

Florists

one-to-one

5994SIC

News Dealers and Newsstands

45122no page — parent 44-45NAICS

News Dealers and Newsstands

many-to-one3 SIC codes share this NAICS code

5995SIC

Optical Goods Stores

44229no page — parent 44-45NAICS

Optical Goods Stores

one-to-one

5999SIC

Miscellaneous Retail Stores, Not Elsewhere Classified

45399no page — parent 44-45NAICS

Miscellaneous Retail Stores, Not Elsewhere Classified

one-to-one

6011SIC

Federal Reserve Banks

52111NAICS

Monetary Authorities — Central Bank

many-to-one2 SIC codes share this NAICS code

6019SIC

Central Reserve Depository Institutions, Not Elsewhere Classified

52119no page — parent 5211NAICS

Central Reserve Depository Institutions, Not Elsewhere Classified

one-to-one

6021SIC

National Commercial Banks

52111NAICS

Monetary Authorities — Central Bank

many-to-one2 SIC codes share this NAICS code

6022SIC

State Commercial Banks

52219NAICS

Other Depository Credit Intermediation

many-to-one8 SIC codes share this NAICS code

6029SIC

Commercial Banks, Not Elsewhere Classified

52219NAICS

Other Depository Credit Intermediation

many-to-one8 SIC codes share this NAICS code

6035SIC

Savings Institutions, Federally Chartered

52219NAICS

Other Depository Credit Intermediation

many-to-one8 SIC codes share this NAICS code

6036SIC

Savings Institutions, Not Federally Chartered

52219NAICS

Other Depository Credit Intermediation

many-to-one8 SIC codes share this NAICS code

6061SIC

Credit Unions, Federally Chartered

52219NAICS

Other Depository Credit Intermediation

many-to-one8 SIC codes share this NAICS code

6062SIC

Credit Unions, Not Federally Chartered

52219NAICS

Other Depository Credit Intermediation

many-to-one8 SIC codes share this NAICS code

6099SIC

Functions Related to Depository Banking, Not Elsewhere Classified

52219NAICS

Other Depository Credit Intermediation

many-to-one8 SIC codes share this NAICS code

6141SIC

Personal Credit Institutions

52291no page — parent 522NAICS

Personal Credit Institutions

many-to-one2 SIC codes share this NAICS code

6153SIC

Short-Term Business Credit Institutions, Except Agricultural

52221NAICS

Credit Card Issuing

one-to-one

6159SIC

Miscellaneous Business Credit Institutions

52299no page — parent 522NAICS

Miscellaneous Business Credit Institutions

one-to-one

6162SIC

Mortgage Bankers and Loan Correspondents

52291no page — parent 522NAICS

Mortgage Bankers and Loan Correspondents

many-to-one2 SIC codes share this NAICS code

6163SIC

Loan Brokers

52219NAICS

Other Depository Credit Intermediation

many-to-one8 SIC codes share this NAICS code

6211SIC

Security Brokers, Dealers, and Flotation Companies

52311NAICS

Investment Banking and Securities Dealing

one-to-one

6221SIC

Commodity Contracts Brokers and Dealers

52321NAICS

Securities and Commodity Exchanges

one-to-one

6231SIC

Security and Commodity Exchanges

52391NAICS

Miscellaneous Intermediation

one-to-one

6282SIC

Investment Advice

52392NAICS

Portfolio Management

one-to-one

6311SIC

Life Insurance

52411NAICS

Direct Life, Health, and Medical Insurance Carriers

one-to-one

6321SIC

Accident and Health Insurance

52412NAICS

Direct Insurance (except Life, Health, and Medical) Carriers

one-to-one

6324SIC

Hospital and Medical Service Plans

52413NAICS

Reinsurance Carriers

one-to-one

6331SIC

Fire, Marine, and Casualty Insurance

52421NAICS

Insurance Agencies and Brokerages

many-to-one4 SIC codes share this NAICS code

6351SIC

Surety Insurance

52421NAICS

Insurance Agencies and Brokerages

many-to-one4 SIC codes share this NAICS code

6361SIC

Title Insurance

52421NAICS

Insurance Agencies and Brokerages

many-to-one4 SIC codes share this NAICS code

6371SIC

Pension, Health, and Welfare Funds

52421NAICS

Insurance Agencies and Brokerages

many-to-one4 SIC codes share this NAICS code

6399SIC

Insurance Carriers, Not Elsewhere Classified

52429NAICS

Other Insurance Related Activities

many-to-one2 SIC codes share this NAICS code

6411SIC

Insurance Agents, Brokers, and Service

52429NAICS

Other Insurance Related Activities

many-to-one2 SIC codes share this NAICS code

6512SIC

Operators of Nonresidential Buildings

53111NAICS

Lessors of Residential Buildings and Dwellings

many-to-one3 SIC codes share this NAICS code

6513SIC

Operators of Apartment Buildings

53111NAICS

Lessors of Residential Buildings and Dwellings

many-to-one3 SIC codes share this NAICS code

6514SIC

Operators of Dwellings Other Than Apartment Buildings

53111NAICS

Lessors of Residential Buildings and Dwellings

many-to-one3 SIC codes share this NAICS code

6515SIC

Operators of Residential Mobile Home Sites

53191no page — parent 531NAICS

Operators of Residential Mobile Home Sites

one-to-one

6531SIC

Real Estate Agents and Managers

53121NAICS

Offices of Real Estate Agents and Brokers

one-to-one

6541SIC

Title Abstract Offices

54191NAICS

Marketing Research and Public Opinion Polling

one-to-one

6552SIC

Land Subdividers and Developers, Except Cemeteries

23711NAICS

Water and Sewer Line and Related Structures Construction

many-to-one2 SIC codes share this NAICS code

6719SIC

Offices of Holding Companies, Not Elsewhere Classified

55111NAICS

Management of Companies and Enterprises

one-to-one

6726SIC

Unit Investment Trusts, Face-Amount Certificate Offices, and Closed-End Management Investment Offices

52599NAICS

Other Financial Vehicles

many-to-one5 SIC codes share this NAICS code

6732SIC

Educational, Religious, and Charitable Trusts

52591NAICS

Open-End Investment Funds (Mutual Funds)

one-to-one

6733SIC

Trusts, Except Educational, Religious, and Charitable

52399NAICS

All Other Financial Investment Activities

one-to-one

6792SIC

Oil Royalty Traders

52599NAICS

Other Financial Vehicles

many-to-one5 SIC codes share this NAICS code

6794SIC

Patent Owners and Lessors

52599NAICS

Other Financial Vehicles

many-to-one5 SIC codes share this NAICS code

6798SIC

Real Estate Investment Trusts

52599NAICS

Other Financial Vehicles

many-to-one5 SIC codes share this NAICS code

6799SIC

Investors, Not Elsewhere Classified

52599NAICS

Other Financial Vehicles

many-to-one5 SIC codes share this NAICS code

7011SIC

Hotels and Motels

72111NAICS

Hotels (except Casino Hotels) and Motels

one-to-one

7021SIC

Rooming and Boarding Houses

72131NAICS

Rooming and Boarding Houses, Dormitories, and Workers' Camps

many-to-one2 SIC codes share this NAICS code

7041SIC

Organization Hotels and Lodging Houses, on Membership Basis

72131NAICS

Rooming and Boarding Houses, Dormitories, and Workers' Camps

many-to-one2 SIC codes share this NAICS code

7211SIC

Power Laundries, Family and Commercial

81211NAICS

Hair, Nail, and Skin Care Services

many-to-one9 SIC codes share this NAICS code

7212SIC

Garment Pressing, and Agents for Laundries and Drycleaners

81211NAICS

Hair, Nail, and Skin Care Services

many-to-one9 SIC codes share this NAICS code

7213SIC

Linen Supply

81211NAICS

Hair, Nail, and Skin Care Services

many-to-one9 SIC codes share this NAICS code

7215SIC

Coin-Operated Laundries and Drycleaning

81211NAICS

Hair, Nail, and Skin Care Services

many-to-one9 SIC codes share this NAICS code

7216SIC

Drycleaning Plants, Except Rug Cleaning

81211NAICS

Hair, Nail, and Skin Care Services

many-to-one9 SIC codes share this NAICS code

7217SIC

Carpet and Upholstery Cleaning

56174NAICS

Carpet and Upholstery Cleaning Services

many-to-one4 SIC codes share this NAICS code

7218SIC

Industrial Launderers

56174NAICS

Carpet and Upholstery Cleaning Services

many-to-one4 SIC codes share this NAICS code

7219SIC

Laundry and Garment Services, Not Elsewhere Classified

81219NAICS

Other Personal Care Services

many-to-one3 SIC codes share this NAICS code

7221SIC

Photographic Studios, Portrait

54192NAICS

Photography Studios, Portrait

one-to-one

7231SIC

Beauty Shops

81211NAICS

Hair, Nail, and Skin Care Services

many-to-one9 SIC codes share this NAICS code

7241SIC

Barber Shops

81211NAICS

Hair, Nail, and Skin Care Services

many-to-one9 SIC codes share this NAICS code

7251SIC

Shoe Repair Shops and Shoeshine Parlors

81211NAICS

Hair, Nail, and Skin Care Services

many-to-one9 SIC codes share this NAICS code

7261SIC

Funeral Service and Crematories

81222NAICS

Cemeteries and Crematoria

one-to-one

7291SIC

Tax Return Preparation Services

54121NAICS

Accounting, Tax Preparation, Bookkeeping, and Payroll Services

many-to-one2 SIC codes share this NAICS code

7299SIC

Miscellaneous Personal Services, Not Elsewhere Classified

81219NAICS

Other Personal Care Services

many-to-one3 SIC codes share this NAICS code

7311SIC

Advertising Agencies

54181NAICS

Advertising Agencies

many-to-one2 SIC codes share this NAICS code

7312SIC

Outdoor Advertising Services

54185NAICS

Indoor and Outdoor Display Advertising

one-to-one

7313SIC

Radio, Television, and Publishers' Advertising Representatives

54189NAICS

Other Services Related to Advertising

many-to-one2 SIC codes share this NAICS code

7319SIC

Advertising, Not Elsewhere Classified

54187NAICS

Advertising Material Distribution Services

one-to-one

7322SIC

Adjustment and Collection Services

56144NAICS

Collection Agencies

many-to-one2 SIC codes share this NAICS code

7323SIC

Credit Reporting Services

56144NAICS

Collection Agencies

many-to-one2 SIC codes share this NAICS code

7331SIC

Direct Mail Advertising Services

56141NAICS

Document Preparation Services

many-to-one2 SIC codes share this NAICS code

7334SIC

Photocopying and Duplicating Services

56143NAICS

Business Service Centers

one-to-one

7335SIC

Commercial Photography

53242NAICS

Office Machinery and Equipment Rental and Leasing

many-to-one2 SIC codes share this NAICS code

7336SIC

Commercial Art and Graphic Design

54181NAICS

Advertising Agencies

many-to-one2 SIC codes share this NAICS code

7338SIC

Secretarial and Court Reporting Services

56141NAICS

Document Preparation Services

many-to-one2 SIC codes share this NAICS code

7342SIC

Disinfecting and Pest Control Services

56174NAICS

Carpet and Upholstery Cleaning Services

many-to-one4 SIC codes share this NAICS code

7349SIC

Building Cleaning and Maintenance Services, Not Elsewhere Classified

56174NAICS

Carpet and Upholstery Cleaning Services

many-to-one4 SIC codes share this NAICS code

7359SIC

Equipment Rental and Leasing, Not Elsewhere Classified

53249NAICS

Other Commercial and Industrial Machinery and Equipment Rental and Leasing

one-to-one

7361SIC

Employment Agencies

56131NAICS

Employment Placement Agencies and Executive Search Services

one-to-one

7363SIC

Help Supply Services

56132NAICS

Temporary Help Services

one-to-one

7371SIC

Computer Programming Services

51811no page — parent 518NAICS

Computer Programming Services

one-to-one

7372SIC

Prepackaged Software

51121no page — parent 51NAICS

Prepackaged Software

one-to-one

7373SIC

Computer Integrated Systems Design

51821NAICS

Computing Infrastructure Providers, Data Processing, and Related Services

many-to-one5 SIC codes share this NAICS code

7374SIC

Computer Processing and Data Preparation and Processing Services

51821NAICS

Computing Infrastructure Providers, Data Processing, and Related Services

many-to-one5 SIC codes share this NAICS code

7375SIC

Information Retrieval Services

51821NAICS

Computing Infrastructure Providers, Data Processing, and Related Services

many-to-one5 SIC codes share this NAICS code

7376SIC

Computer Facilities Management Services

51821NAICS

Computing Infrastructure Providers, Data Processing, and Related Services

many-to-one5 SIC codes share this NAICS code

7377SIC

Computer Rental and Leasing

53242NAICS

Office Machinery and Equipment Rental and Leasing

many-to-one2 SIC codes share this NAICS code

7378SIC

Computer Maintenance and Repair

81143NAICS

Footwear and Leather Goods Repair

one-to-one

7379SIC

Computer Related Services, Not Elsewhere Classified

51821NAICS

Computing Infrastructure Providers, Data Processing, and Related Services

many-to-one5 SIC codes share this NAICS code

7381SIC

Detective, Guard, and Armored Car Services

56161NAICS

Investigation, Guard, and Armored Car Services

many-to-one2 SIC codes share this NAICS code

7382SIC

Security Systems Services

56162NAICS

Security Systems Services (except Locksmiths)

one-to-one

7383SIC

News Syndicates

56161NAICS

Investigation, Guard, and Armored Car Services

many-to-one2 SIC codes share this NAICS code

7389SIC

Business Services, Not Elsewhere Classified

56199NAICS

All Other Support Services

one-to-one

7514SIC

Passenger Car Rental

53211NAICS

Passenger Car Rental and Leasing

many-to-one2 SIC codes share this NAICS code

7515SIC

Passenger Car Leasing

53211NAICS

Passenger Car Rental and Leasing

many-to-one2 SIC codes share this NAICS code

7521SIC

Automobile Parking

81211NAICS

Hair, Nail, and Skin Care Services

many-to-one9 SIC codes share this NAICS code

7532SIC

Top, Body, and Upholstery Repair Shops and Paint Shops

81111NAICS

General Automotive Repair

many-to-one6 SIC codes share this NAICS code

7533SIC

Automotive Exhaust System Repair Shops

81111NAICS

General Automotive Repair

many-to-one6 SIC codes share this NAICS code

7534SIC

Tire Retreading and Repair Shops

81111NAICS

General Automotive Repair

many-to-one6 SIC codes share this NAICS code

7536SIC

Automotive Glass Replacement Shops

81111NAICS

General Automotive Repair

many-to-one6 SIC codes share this NAICS code

7537SIC

Automotive Transmission Repair Shops

81111NAICS

General Automotive Repair

many-to-one6 SIC codes share this NAICS code

7538SIC

General Automotive Repair Shops

81111NAICS

General Automotive Repair

many-to-one6 SIC codes share this NAICS code

7539SIC

Automotive Repair Shops, Not Elsewhere Classified

81119NAICS

Automotive Body, Paint, Interior, and Glass Repair

one-to-one

7542SIC

Carwashes

81192no page — parent 811NAICS

Carwashes

one-to-one

7549SIC

Automotive Services, Except Repair and Carwashes

81199no page — parent 811NAICS

Automotive Services, Except Repair and Carwashes

one-to-one

7622SIC

Radio and Television Repair Shops

81131NAICS

Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance

many-to-one4 SIC codes share this NAICS code

7629SIC

Electrical and Electronic Repair Shops, Not Elsewhere Classified

81133no page — parent 8113NAICS

Electrical and Electronic Repair Shops, Not Elsewhere Classified

one-to-one

7631SIC

Watch, Clock, and Jewelry Repair

81131NAICS

Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance

many-to-one4 SIC codes share this NAICS code

7641SIC

Reupholstery and Furniture Repair

81131NAICS

Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance

many-to-one4 SIC codes share this NAICS code

7692SIC

Welding Repair

81311NAICS

Religious Organizations

many-to-one3 SIC codes share this NAICS code

7694SIC

Armature Rewinding Shops

81131NAICS

Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance

many-to-one4 SIC codes share this NAICS code

7699SIC

Repair Shops and Related Services, Not Elsewhere Classified

81139no page — parent 8113NAICS

Repair Shops and Related Services, Not Elsewhere Classified

one-to-one

7812SIC

Motion Picture and Video Tape Production

51211NAICS

Motion Picture and Video Production

one-to-one

7819SIC

Services Allied to Motion Picture Production

51219NAICS

Post-Production Services and Other Motion Picture and Video Industries

many-to-one2 SIC codes share this NAICS code

7822SIC

Motion Picture and Video Tape Distribution

51219NAICS

Post-Production Services and Other Motion Picture and Video Industries

many-to-one2 SIC codes share this NAICS code

7832SIC

Motion Picture Theaters, Except Drive-In

51213NAICS

Motion Picture and Video Exhibition

many-to-one2 SIC codes share this NAICS code

7833SIC

Drive-In Motion Picture Theaters

51213NAICS

Motion Picture and Video Exhibition

many-to-one2 SIC codes share this NAICS code

7841SIC

Video Tape Rental

53231NAICS

General Rental Centers

one-to-one

7911SIC

Dance Studios, Schools, and Halls

71321NAICS

Casinos (except Casino Hotels)

one-to-one

7922SIC

Theatrical Producers (Except Motion Picture) and Miscellaneous Theatrical Services

71311NAICS

Amusement and Theme Parks

one-to-one

7929SIC

Bands, Orchestras, Actors, and Other Entertainers and Entertainment Groups

71319no page — parent 7131NAICS

Bands, Orchestras, Actors, and Other Entertainers and Entertainment Groups

one-to-one

7933SIC

Bowling Centers

71399NAICS

All Other Amusement and Recreation Industries

many-to-one3 SIC codes share this NAICS code

7941SIC

Professional Sports Clubs and Promoters

71211NAICS

Museums

many-to-one2 SIC codes share this NAICS code

7948SIC

Racing, Including Track Operation

71212NAICS

Historical Sites

one-to-one

7991SIC

Physical Fitness Facilities

71394NAICS

Fitness and Recreational Sports Centers

many-to-one2 SIC codes share this NAICS code

7992SIC

Public Golf Courses

71392NAICS

Skiing Facilities

one-to-one

7993SIC

Coin-Operated Amusement Devices

71399NAICS

All Other Amusement and Recreation Industries

many-to-one3 SIC codes share this NAICS code

7996SIC

Amusement Parks

71131NAICS

Promoters of Performing Arts, Sports, and Similar Events with Facilities

one-to-one

7997SIC

Membership Sports and Recreation Clubs

71394NAICS

Fitness and Recreational Sports Centers

many-to-one2 SIC codes share this NAICS code

7999SIC

Amusement and Recreation Services, Not Elsewhere Classified

71399NAICS

All Other Amusement and Recreation Industries

many-to-one3 SIC codes share this NAICS code

8011SIC

Offices and Clinics of Doctors of Medicine

62111NAICS

Offices of Physicians (except Mental Health Specialists)

many-to-one2 SIC codes share this NAICS code

8021SIC

Offices and Clinics of Dentists

62121NAICS

Offices of Dentists

one-to-one

8031SIC

Offices and Clinics of Doctors of Osteopathy

62111NAICS

Offices of Physicians (except Mental Health Specialists)

many-to-one2 SIC codes share this NAICS code

8041SIC

Offices and Clinics of Chiropractors

62131NAICS

Offices of Chiropractors

many-to-one3 SIC codes share this NAICS code

8042SIC

Offices and Clinics of Optometrists

62131NAICS

Offices of Chiropractors

many-to-one3 SIC codes share this NAICS code

8043SIC

Offices and Clinics of Podiatrists

62131NAICS

Offices of Chiropractors

many-to-one3 SIC codes share this NAICS code

8049SIC

Offices and Clinics of Health Practitioners, Not Elsewhere Classified

62139NAICS

Offices of All Other Health Practitioners

one-to-one

8051SIC

Skilled Nursing Care Facilities

62311NAICS

Nursing Care Facilities (Skilled Nursing Facilities)

one-to-one

8059SIC

Nursing and Personal Care Facilities, Not Elsewhere Classified

62319no page — parent 6231NAICS

Nursing and Personal Care Facilities, Not Elsewhere Classified

one-to-one

8062SIC

General Medical and Surgical Hospitals

62211NAICS

General Medical and Surgical Hospitals

one-to-one

8063SIC

Psychiatric Hospitals

62221NAICS

Psychiatric and Substance Abuse Hospitals

one-to-one

8069SIC

Specialty Hospitals, Except Psychiatric

62199NAICS

All Other Ambulatory Health Care Services

many-to-one2 SIC codes share this NAICS code

8071SIC

Medical Laboratories

62151NAICS

Medical Laboratories

many-to-one2 SIC codes share this NAICS code

8072SIC

Dental Laboratories

62151NAICS

Medical Laboratories

many-to-one2 SIC codes share this NAICS code

8082SIC

Home Health Care Services

62161NAICS

Home Health Care Services

one-to-one

8099SIC

Health and Allied Services, Not Elsewhere Classified

62199NAICS

All Other Ambulatory Health Care Services

many-to-one2 SIC codes share this NAICS code

8111SIC

Legal Services

54111NAICS

Offices of Lawyers

one-to-one

8211SIC

Elementary and Secondary Schools

61111NAICS

Elementary and Secondary Schools

one-to-one

8221SIC

Colleges, Universities, and Professional Schools

61131NAICS

Colleges, Universities, and Professional Schools

many-to-one2 SIC codes share this NAICS code

8222SIC

Junior Colleges and Technical Institutes

61131NAICS

Colleges, Universities, and Professional Schools

many-to-one2 SIC codes share this NAICS code

8231SIC

Libraries

51912no page — parent 519NAICS

Libraries

one-to-one

8243SIC

Data Processing Schools

61141NAICS

Business and Secretarial Schools

many-to-one2 SIC codes share this NAICS code

8244SIC

Business and Secretarial Schools

61141NAICS

Business and Secretarial Schools

many-to-one2 SIC codes share this NAICS code

8249SIC

Vocational Schools, Not Elsewhere Classified

61142NAICS

Computer Training

one-to-one

8299SIC

Schools and Educational Services, Not Elsewhere Classified

61169NAICS

All Other Schools and Instruction

one-to-one

8322SIC

Individual and Family Social Services

62411NAICS

Child and Youth Services

many-to-one2 SIC codes share this NAICS code

8331SIC

Job Training and Vocational Rehabilitation Services

62421NAICS

Community Food Services

one-to-one

8351SIC

Child Day Care Services

62441NAICS

Child Care Services

one-to-one

8361SIC

Residential Care

62411NAICS

Child and Youth Services

many-to-one2 SIC codes share this NAICS code

8399SIC

Social Services, Not Elsewhere Classified

62499no page — parent 624NAICS

Social Services, Not Elsewhere Classified

one-to-one

8412SIC

Museums and Art Galleries

71211NAICS

Museums

many-to-one2 SIC codes share this NAICS code

8422SIC

Arboreta and Botanical or Zoological Gardens

71213NAICS

Zoos and Botanical Gardens

one-to-one

8611SIC

Business Associations

81391NAICS

Business Associations

many-to-one4 SIC codes share this NAICS code

8621SIC

Professional Membership Organizations

81391NAICS

Business Associations

many-to-one4 SIC codes share this NAICS code

8631SIC

Labor Unions and Similar Labor Organizations

81311NAICS

Religious Organizations

many-to-one3 SIC codes share this NAICS code

8641SIC

Civic, Social, and Fraternal Associations

81341NAICS

Civic and Social Organizations

one-to-one

8651SIC

Political Organizations

81391NAICS

Business Associations

many-to-one4 SIC codes share this NAICS code

8661SIC

Religious Organizations

81311NAICS

Religious Organizations

many-to-one3 SIC codes share this NAICS code

8699SIC

Membership Organizations, Not Elsewhere Classified

81391NAICS

Business Associations

many-to-one4 SIC codes share this NAICS code

8711SIC

Engineering Services

54133NAICS

Engineering Services

one-to-one

8712SIC

Architectural Services

54131NAICS

Architectural Services

one-to-one

8713SIC

Surveying Services

54138NAICS

Interior Design Services

many-to-one2 SIC codes share this NAICS code

8721SIC

Accounting, Auditing, and Bookkeeping Services

54121NAICS

Accounting, Tax Preparation, Bookkeeping, and Payroll Services

many-to-one2 SIC codes share this NAICS code

8731SIC

Commercial Physical and Biological Research

54171NAICS

Research and Development in the Physical, Engineering, and Life Sciences

many-to-one3 SIC codes share this NAICS code

8732SIC

Commercial Economic, Sociological, and Educational Research

54171NAICS

Research and Development in the Physical, Engineering, and Life Sciences

many-to-one3 SIC codes share this NAICS code

8733SIC

Noncommercial Research Organizations

54171NAICS

Research and Development in the Physical, Engineering, and Life Sciences

many-to-one3 SIC codes share this NAICS code

8734SIC

Testing Laboratories

54138NAICS

Interior Design Services

many-to-one2 SIC codes share this NAICS code

8741SIC

Management Services

56111NAICS

Office Administrative Services

one-to-one

8742SIC

Management Consulting Services

54161NAICS

Management Consulting Services

one-to-one

8743SIC

Public Relations Services

54189NAICS

Other Services Related to Advertising

many-to-one2 SIC codes share this NAICS code

8744SIC

Facilities Support Management Services

56121NAICS

Facilities Support Services

one-to-one

8748SIC

Business Consulting Services, Not Elsewhere Classified

54199NAICS

All Other Professional, Scientific, and Technical Services

one-to-one

8811SIC

Private Households

81411NAICS

Private Households

one-to-one

8999SIC

Services, Not Elsewhere Classified

71219NAICS

Nature Parks and Other Similar Institutions

one-to-one

9111SIC

Executive Offices

92111NAICS

Executive Offices

many-to-one2 SIC codes share this NAICS code

9121SIC

Legislative Bodies

92111NAICS

Executive Offices

many-to-one2 SIC codes share this NAICS code

9131SIC

Executive and Legislative Offices Combined

92211NAICS

Courts

many-to-one6 SIC codes share this NAICS code

9199SIC

General Government, Not Elsewhere Classified

92119NAICS

Other General Government Support

one-to-one

9211SIC

Courts

92211NAICS

Courts

many-to-one6 SIC codes share this NAICS code

9221SIC

Police Protection

92211NAICS

Courts

many-to-one6 SIC codes share this NAICS code

9222SIC

Legal Counsel and Prosecution

92211NAICS

Courts

many-to-one6 SIC codes share this NAICS code

9223SIC

Correctional Institutions

92211NAICS

Courts

many-to-one6 SIC codes share this NAICS code

9224SIC

Fire Protection

92211NAICS

Courts

many-to-one6 SIC codes share this NAICS code

9229SIC

Public Order and Safety, Not Elsewhere Classified

92219no page — parent 9221NAICS

Public Order and Safety, Not Elsewhere Classified

one-to-one

9311SIC

Public Finance, Taxation, and Monetary Policy

92113NAICS

Public Finance Activities

one-to-one

9411SIC

Administration of Educational Programs

92311NAICS

Administration of Education Programs

one-to-one

9431SIC

Administration of Public Health Programs

92312NAICS

Administration of Public Health Programs

one-to-one

9441SIC

Administration of Social, Human Resource and Income Maintenance Programs

92313NAICS

Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Programs)

one-to-one

9451SIC

Administration of Veterans' Affairs, Except Health and Insurance

92314no page — parent 9231NAICS

Administration of Veterans' Affairs, Except Health and Insurance

one-to-one

9511SIC

Air and Water Resource and Solid Waste Management

92411NAICS

Administration of Air and Water Resource and Solid Waste Management Programs

many-to-one2 SIC codes share this NAICS code

9512SIC

Land, Mineral, Wildlife, and Forest Conservation

92411NAICS

Administration of Air and Water Resource and Solid Waste Management Programs

many-to-one2 SIC codes share this NAICS code

9531SIC

Administration of Housing Programs

92412NAICS

Administration of Conservation Programs

many-to-one2 SIC codes share this NAICS code

9532SIC

Administration of Urban Planning and Community and Rural Development

92412NAICS

Administration of Conservation Programs

many-to-one2 SIC codes share this NAICS code

9611SIC

Administration of General Economic Programs

92511NAICS

Administration of Housing Programs, Urban Planning, and Community Development

one-to-one

9621SIC

Regulation and Administration of Transportation Programs

92512no page — parent 9251NAICS

Regulation and Administration of Transportation Programs

one-to-one

9631SIC

Regulation and Administration of Communications, Electric, Gas, and Other Utilities

92521no page — parent 925NAICS

Regulation and Administration of Communications, Electric, Gas, and Other Utilities

one-to-one

9641SIC

Regulation of Agricultural Marketing and Commodities

92522no page — parent 925NAICS

Regulation of Agricultural Marketing and Commodities

one-to-one

9651SIC

Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors

92531no page — parent 925NAICS

Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors

one-to-one

9661SIC

Space and Research and Technology

92611NAICS

Administration of General Economic Programs

one-to-one

9711SIC

National Security

92811NAICS

National Security

one-to-one

9721SIC

International Affairs

92812NAICS

International Affairs

one-to-one

Guide

How to Convert SIC Codes to NAICS Codes

The Standard Industrial Classification (SIC) is the older US system for grouping businesses by primary activity, last revised in 1987. NAICS — the North American Industry Classification System — replaced it for federal statistics in 1997 and is now shared across the United States, Canada, and Mexico. Despite the switch, SIC never disappeared: financial filings, OSHA records, UK Companies House data, and many B2B databases still use it, which is why a reliable sic to naics crosswalk matters.

Crosswalking is most useful in three situations. First, when integrating legacy data: an acquired company's CRM, a long- running internal warehouse, or an external dataset stamped with SIC codes needs to line up with NAICS-classified records before you can run analytics on it. Second, in regulatory and compliance work: filings often require both codes, and healthcare, finance, and tax authorities sometimes ask for one system even when your records carry the other. Third, in M&A integration, where two firms classified under different systems must be merged into a single segmentation model.

The trickiest part of the mapping is granularity. NAICS uses a more detailed hierarchy than SIC, and at its six-digit national industry level a single SIC code can expand into several NAICS codes. The table on this page resolves to the five-digit NAICS industry level, one tier above that, so those splits are not visible here — each SIC code shows exactly one NAICS match. Work that depends on the six-digit split needs the US Census Bureau concordance. What this table does surface is the opposite direction: many SIC codes converge on a single NAICS code, and every such row is flagged many-to-one with the number of SIC codes sharing it.

When should you use each system? NAICS is the right default for any new dataset, government reporting, or analysis aimed at the North American market. SIC remains useful when you're working with historical data, financial-services systems, or international datasets that haven't been re-coded — and any time you need to talk to a system that has not yet adopted NAICS. A clean naics to sic conversion keeps both worlds compatible without forcing you to abandon either.

FAQ

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