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SIC Code Lookup
Search the complete Standard Industrial Classification — 1,004 SIC codes across 11 divisions
All Divisions
Browse by SIC Division
| Code | Division Title |
|---|---|
| 01-09 | SIC 01-09 — Agriculture, Forestry, And Fishing Major groups 01–09 |
| 10-14 | SIC 10-14 — Mining Major groups 10–14 |
| 15-17 | SIC 15-17 — Construction Major groups 15–17 |
| 20-39 | SIC 20-39 — Manufacturing Major groups 20–39 |
| 40-49 | SIC 40-49 — Transportation, Communications, Electric, Gas, And Sanitary Services Major groups 40–49 |
| 50-51 | SIC 50-51 — Wholesale Trade Major groups 50–51 |
| 52-59 | SIC 52-59 — Retail Trade Major groups 52–59 |
| 60-67 | SIC 60-67 — Finance, Insurance, And Real Estate Major groups 60–67 |
| 70-89 | SIC 70-89 — Services Major groups 70–89 |
| 91-97 | SIC 91-97 — Public Administration Major groups 91–97 |
| 99 | SIC 99 — Nonclassifiable Establishments Major groups 99 |
Full index
Every SIC major group and industry group
SIC 01-09 — Agriculture, Forestry, And Fishing
SIC 10-14 — Mining
SIC 15-17 — Construction
- SIC 171 — Plumbing, Heating and Air-Conditioning
- SIC 172 — Painting and Paper Hanging
- SIC 173 — Electrical Work
- SIC 174 — Masonry, Stone Setting, and Other Stone Work
- SIC 175 — Carpentry and Floor Work
- SIC 176 — Roofing, Siding, and Sheet Metal Work
- SIC 177 — Concrete Work
- SIC 178 — Water Well Drilling
- SIC 179 — Misc Special Trade Contractors
SIC 20-39 — Manufacturing
- SIC 221 — Broadwoven Fabric Mills, Cotton
- SIC 222 — Broadwoven Fabric Mills, Manmade Fiber and Silk
- SIC 223 — Broadwoven Fabric Mills, Wool
- SIC 224 — Narrow Fabric and Other Smallware Mills
- SIC 225 — Knitting Mills
- SIC 226 — Dyeing and Finishing Textiles
- SIC 227 — Floor Covering Mills
- SIC 228 — Yarn and Thread Mills
- SIC 229 — Misc Textile Goods
- SIC 231 — Men's and Boy's Suits, Coats and Overcoats
- SIC 232 — Men's and Boy's Furnishings
- SIC 233 — Women's, Misses', and Juniors' Outerwear
- SIC 234 — Women's, Juniors', and Misses' Blouses and Waists
- SIC 235 — Hats, Caps, and Millinery
- SIC 236 — Girls', Children's, and Infants' Outerwear
- SIC 237 — Fur Goods
- SIC 238 — Misc Apparel and Accessories
- SIC 239 — Misc Fabricated Textile Products
- SIC 281 — Industrial Chemicals and Synthetics
- SIC 282 — Plastics Materials and Synthetic Resins
- SIC 283 — Drugs
- SIC 284 — Soap, Detergents, Cleaners, and Toilet Goods
- SIC 285 — Paints, Varnishes, Lacquers, Enamels, and Allied Products
- SIC 286 — Industrial and Other Chemicals
- SIC 287 — Agricultural Chemicals
- SIC 289 — Misc Chemical Products
- SIC 321 — Flat Glass
- SIC 322 — Products of Purchased Glass
- SIC 323 — Products of Purchased Glass
- SIC 324 — Cement, Hydraulic
- SIC 325 — Structural Clay Products
- SIC 326 — Pottery and Related Products
- SIC 327 — Concrete, Gypsum, and Plaster Products
- SIC 328 — Cut Stone and Stone Products
- SIC 329 — Abrasive, Asbestos, and Misc Nonmetallic Mineral Products
- SIC 331 — Steel Works, Blast Furnaces, and Rolling and Finishing Mills
- SIC 332 — Iron and Steel Foundries
- SIC 333 — Primary Smelting and Refining of Nonferrous Metals
- SIC 334 — Secondary Smelting and Refining of Nonferrous Metals
- SIC 335 — Rolling, Drawing, and Extruding of Nonferrous Metals
- SIC 336 — Nonferrous Foundries (Castings)
- SIC 339 — Misc Primary Metal Products
- SIC 341 — Metal Cans and Shipping Containers
- SIC 342 — Cutlery, Handtools and General Hardware
- SIC 343 — Heating Equipment, Except Electric and Warm Air Furnaces
- SIC 344 — Fabricated Structural Metal Manufacturing
- SIC 345 — Screw Machine Products, Bolts, etc.
- SIC 346 — Metal Forgings and Stampings
- SIC 347 — Services to Buildings and Dwellings
- SIC 348 — Ordnance and Accessories
- SIC 349 — Misc Fabricated Metal Products
- SIC 351 — Engines and Turbines
- SIC 352 — Farm and Garden Machinery and Equipment
- SIC 353 — Construction, Mining, and Materials Handling Equipment
- SIC 354 — Metalworking Machinery and Equipment
- SIC 355 — Special Industry Machinery, Except Metalworking
- SIC 356 — General Industry Machinery and Equipment
- SIC 357 — Computer and Office Equipment
- SIC 358 — Refrigeration and Heating Equipment
- SIC 359 — Misc Industrial and Commercial Machinery and Equipment
- SIC 361 — Electric Transmission and Distribution Equipment
- SIC 362 — Electrical Industrial Apparatus
- SIC 363 — Household Appliances
- SIC 364 — Electric Lighting and Wiring Equipment
- SIC 365 — Household Audio and Video Equipment
- SIC 366 — Communications Equipment
- SIC 367 — Electronic Components and Accessories
- SIC 369 — Misc Electrical Industrial Apparatus
- SIC 381 — Search, Detection, Navigation, Guidance, Aeronautical Systems
- SIC 382 — Laboratory Apparatus and Analytical, Optical, Measuring and Controlling Instruments
- SIC 384 — Surgical and Medical Instruments and Apparatus
- SIC 385 — Ophthalmic Goods
- SIC 386 — Photographic Equipment and Supplies
- SIC 387 — Watches, Clocks, Clockwork Operated Devices and Parts
SIC 40-49 — Transportation, Communications, Electric, Gas, And Sanitary Services
SIC 50-51 — Wholesale Trade
- SIC 501 — Motor Vehicles, Parts, and Supplies
- SIC 502 — Furniture and Homefurnishings
- SIC 503 — Lumber and Construction Materials
- SIC 504 — Professional and Commercial Equipment
- SIC 505 — Metals and Minerals, Except Petroleum
- SIC 506 — Electrical Apparatus and Equipment
- SIC 507 — Hardware, Plumbing, Heating Equipment and Supplies
- SIC 508 — Machinery, Equipment, and Supplies
- SIC 509 — Misc Durable Goods
- SIC 511 — Paper and Paper Products
- SIC 512 — Drugs, Drug Proprietaries and Druggists' Sundries
- SIC 513 — Apparel, Piece Goods, and Notions
- SIC 514 — Groceries and Related Products
- SIC 515 — Farm-Product Raw Materials
- SIC 516 — Chemicals and Allied Products
- SIC 517 — Petroleum and Petroleum Products
- SIC 518 — Industry Group 518
- SIC 519 — Misc Nondurable Goods
SIC 52-59 — Retail Trade
SIC 60-67 — Finance, Insurance, And Real Estate
SIC 70-89 — Services
- SIC 731 — Advertising Services
- SIC 732 — Credit Reporting and Collection
- SIC 733 — Mailing, Reproduction, Commercial Art and Photography
- SIC 734 — Services to Buildings and Dwellings
- SIC 735 — Misc Equipment Rental and Leasing
- SIC 736 — Personnel Supply Services
- SIC 737 — Computer Programming, Data Processing
- SIC 738 — Misc Business Services
- SIC 801 — Offices and Clinics of Doctors of Medicine
- SIC 802 — Offices and Clinics of Dentists
- SIC 803 — Offices and Clinics of Other Health Practitioners
- SIC 804 — Offices and Clinics of Other Health Practitioners
- SIC 805 — Skilled Nursing Care Facilities
- SIC 806 — Hospitals
- SIC 807 — Medical and Dental Laboratories
- SIC 808 — Home Health Care Services
- SIC 809 — Misc Health and Allied Services
SIC 91-97 — Public Administration
- SIC 961 — Administration of General Economic Programs
- SIC 962 — Regulation and Administration of Transportation Programs
- SIC 963 — Regulation and Administration of Communications Programs
- SIC 964 — Regulation of Agricultural Marketing and Commodities
- SIC 965 — Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors
- SIC 966 — Space Research and Technology
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Overview
What is a SIC code?
The Standard Industrial Classification (SIC) is a system of four-digit numeric codes used by the US government to classify business establishments by their primary economic activity. It was created in 1937 and revised several times, with the 1987 revision being the most widely referenced version today. See the NAICS code equivalent for the modern federal standard, the difference between SIC and NAICS for a side-by-side, or use our converter to convert SIC to NAICS. For a full primer, What is a SIC code? walks through the structure end to end.
Although the Census Bureau and most federal agencies replaced SIC with NAICS in 1997, the SEC still requires SIC codes in all EDGAR company filings. State agencies, commercial credit bureaus, and many B2B databases continue to use SIC for business classification and industry targeting.
This SIC code directory covers the complete 1987 SIC hierarchy — all 11 divisions, 83 major groups, 416 industry groups, and 1,004 four-digit industries — with links to the corresponding NAICS code for each industry.
Hierarchy
How SIC Codes Are Structured
SIC codes use a 4-digit numeric hierarchy. Each additional digit narrows the classification from a broad division to a specific industry.
| Level | Type | Description |
|---|---|---|
| Range | Division | Broadest grouping. 11 divisions cover the entire US economy by numeric code range — from Agriculture (01-09) to Nonclassifiable Establishments (99). |
| 2-digit | Major Group | 83 major groups subdivide each division by type of industry. For example, Division 20-39 (Manufacturing) includes Major Group 20 (Food) through 39 (Misc Manufacturing). |
| 3-digit | Industry Group | 416 industry groups cluster related 4-digit industries. Industry Group 357 groups Computer and Office Equipment under Manufacturing Major Group 35. |
| 4-digit | Industry | The primary SIC code used in filings, databases, and business classification. 1,004 industries each describe a specific type of establishment by its primary activity. |
Comparison
SIC vs NAICS: what's the difference?
SIC (Standard Industrial Classification)was created in 1937 and organized the US economy into 11 broad divisions with 4-digit codes. While it served statistical agencies well for decades, SIC couldn't properly classify the explosion of technology, professional services, and modern healthcare businesses that emerged from the 1970s onward.
NAICS replaced SIC for most federal statistical purposes in 1997, expanding to 20 sectors and introducing dedicated classifications for software, wireless telecom, and other modern industries. The SEC is the main federal agency still using SIC today, requiring it in all EDGAR filings.
Full guide: SIC vs NAICS — Key Differences| SIC | NAICS | |
|---|---|---|
| Created | 1937 | 1997 (revised 2022) |
| Top-level groups | 11 divisions | 20 sectors |
| Code length | 4 digits | 2–6 digits |
| Geographic scope | US only (original) | US, Canada, Mexico |
| US federal stats | Replaced by NAICS | Primary standard |
| SEC / EDGAR | Still active | Not used |
FAQ
Frequently asked questions about SIC codes
A SIC code (Standard Industrial Classification code) is a 4-digit numeric code assigned by the US government to identify the primary business activity of an establishment. SIC codes were created in 1937 by the US Office of Management and Budget and organized the entire economy into 11 major divisions. Although the US Census Bureau replaced SIC with NAICS in 1997, the SEC still requires SIC codes in EDGAR filings, and many state agencies and commercial databases continue to use the SIC system.
The 1987 SIC manual contains 1,004 four-digit industry codes, organized into 415 three-digit industry groups, 83 two-digit major groups, and 11 divisions each identified by a numeric range. Division 20-39 (Manufacturing) is the largest, with 20 major groups covering food processing, chemicals, metals, electronics, and transportation equipment.
Yes. While the US Census Bureau, Bureau of Labor Statistics, and most federal statistical agencies switched to NAICS in 1997, the SEC continues to use SIC codes in EDGAR company filings. State unemployment insurance agencies, some commercial credit databases, and older B2B marketing lists also still use SIC. Many companies maintain both a SIC and a NAICS code for different compliance and data purposes.
SIC (Standard Industrial Classification) uses 4-digit codes organized into 11 divisions, while NAICS (North American Industry Classification System) uses 2-to-6-digit codes organized into 20 sectors. NAICS was designed in 1997 to better reflect the modern service economy, especially technology and professional services that SIC couldn't classify well. NAICS is also shared across the US, Canada, and Mexico. The SEC remains one of the few major federal agencies still using SIC.
Software companies most commonly use SIC 7372 (Prepackaged Software) or SIC 7371 (Computer Programming, Data Processing). Hardware makers fall under Division 20-39 (Manufacturing) — for example, 3571 (Electronic Computers) or 3672 (Printed Circuit Boards). IT consulting and services often use 7373 (Computer Integrated Systems Design) or 7379 (Computer Related Services, NEC). The SEC assigns SIC codes to public companies when they register; private companies self-select.
For public companies, the fastest source is the SEC's EDGAR system — every public company filing includes a SIC code. For private companies, commercial databases like Dun & Bradstreet, InfobelPRO, and Reference USA carry SIC classifications. You can also search this directory by keyword or code to identify the most appropriate SIC classification for any business activity.
Eating and drinking places fall under SIC Major Group 58. The primary codes are 5812 (Eating Places) for restaurants, cafeterias, and fast food establishments, and 5813 (Drinking Places) for bars, taverns, and nightclubs. The equivalent NAICS codes are 722511 (Full-Service Restaurants) and 722513 (Limited-Service Restaurants).
NAICS (North American Industry Classification System) replaced SIC codes for most US federal statistical purposes starting in 1997. NAICS was jointly developed by the statistical agencies of the United States, Canada, and Mexico to provide a consistent classification across North America. It introduced dedicated classifications for modern industries like software, wireless telecom, and Internet services that SIC could not properly classify.
Related
Keep exploring industry codes
convert a SIC code to NAICS
941 SIC 1987 industries paired with NAICS 2022 at the five-digit level, with coverage gaps stated.
NACE to SIC converter
Map European NACE Rev. 2 codes to US SIC 1987 equivalents in seconds.
What is a NAICS code?
Definition, structure, hierarchy, and how to find your NAICS code.
Firmographic data for B2B segmentation
Standardised NAICS, SIC, and NACE codes attached to 380M company records.