Greece— GR

Company data in Greece, by industry

Browse Greece company directories across 56 industries — 1,114,603 businesses in the InfobelPRO database, registry-sourced from GEMI and enriched with firmographics, location, financials and group structure.

1,114,603

Registered companies

HELLENIQ ENERGY HOLDINGS S.A.

Largest company

Restaurants and mobile food service activities

Largest sector

19th

in Europe by count

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Rankings

Largest companies in Greece

By revenue, one row per corporate group — reported (actual) revenue, updated September 2026.

#	Company (group)	Industry	HQ	Revenue (USD)
1	HELLENIQ ENERGY HOLDINGS S.A.	Manufacture of refined petroleum products	Amarousio	$11.4B
2	MOTOR OIL (ELLAS) DIYLISTIRIA KORINTHOU A.E.	Manufacture of refined petroleum products	Amarousio	$8.9B
3	PUBLIC POWER CORPORATION S.A.	Electric power generation, transmission and distribution	Athina	$6.9B
4	METLEN ENERGY & METALS SINGLE MEMBER S.A.	Aluminium production	Amarousio	$5B
5	HELLENIC HYPERMARKETS SKLAVENITIS S.A.	Retail sale in non-specialised stores with food, beverages or tobacco predominating	Peristeri	$4.9B
6	ALPHA BANK S.A.	Other monetary intermediation	Athens	$4.5B
7	EUROBANK S.A.	Other monetary intermediation	Athina	$4B
8	HELLENIC TELECOMMUNICATIONS ORGANIZATION S.A.	Wired telecommunications activities	Amarousio	$3.9B
9	PIRAEUS BANK S.A.	Other monetary intermediation	Athina	$3.1B
10	ELVALHALCOR HELLENIC COPPER & ALUMINIUM INDUSTRY S.A.	Copper production	Schimatari	$2.9B
11	ELINOIL HELLENIC PETROLEUM COMPANY S.A.	Wholesale of solid, liquid and gaseous fuels and related products	Kifisia	$2.6B
12	AEGEAN AIRLINES S.A.	Passenger air transport	Athens	$2.1B
13	DEMO COMPANY 1	Passenger air transport	Ilion Attikis	$2.1B
14	"ALFA-BETA" VASSILOPOULOS SINGLE MEMBER SOCIETE ANONYME	Retail sale in non-specialised stores with food, beverages or tobacco predominating	Paiania	$2B
15	GEK TERNA S.A.	Construction of roads and motorways	Athina	$1.8B

Top 15 of 25 · METRO ANONYMI EMPORIKI KAI VIOMICHANIKI ETAIREIA EIDON DIATROFIS KAI OIKIAKIS CHRISIS, HELLENIC CABLES S.A. HELLENIC CABLE INDUSTRY SINGLE MEMBER S.A., BOEHRINGER INGELHEIM HELLAS SINGLE MEMBER S.A., DIAMANTIS MASOUTIS A.E. SOUPER MARKET, JUMBO ANONYMI EMPORIKI ETAIREIA, AEGEAN OIL S.A., VODAFONE - PANAFON HELLENIC TELECOMMUNICATIONS COMPANY S.A., HELLENIC CORPORATION OF ASSETS AND PARTICIPATIONS, AVAX S.A., KRITIKOS HOLDINGS S.A. follow. Methodology →

HELLENIQ ENERGY HOLDINGS S.A. leads by reported revenue at $11.4B, the largest of 25 ranked corporate groups.

Coverage

Companies by industry

The B2B industries we cover, ranked by number of companies. Each links to the full directory.

Retail companies

182,491

Distribution & wholesale

94,561

Construction companies

91,608

Manufacturing companies

81,814

Hotels

42,303

+ 51 more industries below ↓

Retail companies is the most populated sector we cover, with 182,491 companies — 16% of Greece's 1,114,603 registered.

Distribution

Company size & revenue

By number of employees

1–4

891,724

5–9

26,597

10–19

15,714

20–49

9,530

50–99

2,911

100–199

1,349

200–499

738

500–999

258

1000+

186

The 1–4 band is shown with a broken bar — it is ~34× the next band; the smaller bands are scaled against each other so they stay readable. 178,885 companies have no disclosed headcount (excluded).

Around 94% of companies with disclosed headcount employ fewer than five people, so the market skews heavily toward micro-enterprises.

By revenue (local currency)

1–100K

409,387

100K-499K

437,475

500K-999K

40,541

1M-4.99M

21,218

5M-9.99M

3,708

10M-49.99M

3,353

50M-99.99M

451

100M-499.99M

344

500M-999.99M

1B+

211,357 companies have no disclosed revenue (excluded from the chart).

The most common disclosed-revenue band is 100K-499K, covering 48% of companies with reported revenue.

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1,114,603 companies with firmographics, financials and corporate group structure — filtered by industry, size, region and revenue.

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Geography

Where Greek companies are based

Distribution by region.

Kentrikos Tomeas Athinon

133,707

Thessaloniki

104,983

Voreios Tomeas Athinon

67,803

Notios Tomeas Athinon

57,854

Anatoliki Attiki

48,613

Kentrikos Tomeas Athinon holds the largest regional share, with 22% of companies that have a disclosed region.

Group linkage

Corporate structure in Greece

How much of the market is part of a corporate group vs independent.

18%

Part of a corporate group

82%

Independent

18% of companies belong to a corporate group; the remaining 82% operate independently.

Corporate groups

Largest corporate groups in Greece

Greek-headquartered groups ranked by total group entities worldwide — a measure of corporate reach.

#	Group	Group entities (worldwide)
1	MOTOR OIL (ELLAS) DIYLISTIRIA KORINTHOU A.E.	362
2	PUBLIC POWER CORPORATION S.A.	216
3	AKTOR ANONYMI ETAIREIA SYMMETOCHON TECHNIKON KAI ENERGEIAKON ERGON	183
4	PENTE SA PUBLIC LIMITED COMPANY FOR FOODS, HOUSEHOLD PRODUCTS AND GENERAL CONSUMER GOODS	171
5	GEK TERNA S.A.	144
6	HELLENIQ ENERGY HOLDINGS S.A.	109
7	KRITIKOS HOLDINGS S.A.	106
8	DIETHNIS ATHLITIKI SINGLE MEMBER LTD	94
9	FOURLIS ANONYMI ETAIREIA SYMMETOCHON	90
10	KAFKAS, V., S.A.	86

Group entities = total members of the corporate family worldwide, for groups whose ultimate parent is in Greece.

MOTOR OIL (ELLAS) DIYLISTIRIA KORINTHOU A.E. is the largest corporate group headquartered in Greece, with 362 entities worldwide.

Foreign ownership

Foreign-owned vs domestic

Among Greece's larger companies, the share ultimately controlled from abroad — and the leading countries of ownership.

39%

Foreign-owned

61%

Greek-owned

Leading countries of ownership

Cyprus

19%

Luxemburg

11%

United States of America

10.6%

England

8.5%

Germany

8.5%

Shares calculated on the largest companies by revenue with ownership data available, not an absolute national figure.

Cyprus is the leading country of foreign ownership, at 19%.

FAQ

Greece company data — frequently asked questions

There are 1,114,603 registered companies in Greece across all sectors, from sole traders to large enterprises.

By reported revenue, HELLENIQ ENERGY HOLDINGS S.A. is the largest company in Greece, followed by MOTOR OIL (ELLAS) DIYLISTIRIA KORINTHOU A.E. and PUBLIC POWER CORPORATION S.A..

Restaurants and mobile food service activities, Beverage serving activities, Hotels and similar accommodation have the most registered companies.

You can request a free sample or access the full Greece database, filtered by industry, size, region and revenue, via InfobelPRO.

Sourced from the Infobel DaaS database. The largest-companies ranking is consolidated at corporate-group level (one row per group) and shows reported (actual) revenue in USD; modeled figures are excluded. Distributions cover all registered companies. Industry directories use a NACE-based B2B taxonomy. Last updated September 2026.

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