# Multinational companies headquartered in Greece
Tamtam tracks 217 multinational companies headquartered in Greece. This list ranks the 50 largest by number of employees on LinkedIn, led by Consolidated Contractors Company, OTE Group of Companies (HTO) and Eurobank. Their median headcount is 1,355. Half of them were founded in 1976 or later. The most common headquarters are Athens (22) and Marousi (6).
This selection of large multinational companies in Greece showcases a blend of established financial institutions, telecommunications providers, and diverse industrial groups. Notable examples include Eurobank, a strong financial organization, OTE Group of Companies, a major technology firm, and Consolidated Contractors Company, an international construction and engineering specialist. Metlen stands out as a global industrial and energy provider, while Kaizen Gaming represents a rapidly growing GameTech company. The presence of multiple universities, such as the University of Patras and the National & Kapodistrian University of Athens, also points to a significant higher education sector.
A clear pattern among these companies is their strong concentration in the Athens metropolitan area, including Maroussi and Kifisia. This indicates the capital city as a primary hub for large-scale corporate operations and headquarters within Greece. The companies span various sectors from financial services and construction to utilities and entertainment, reflecting a diversified economic landscape.
๐ฌ๐ท Greece ยท 50 companies ยท Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Consolidated Contractors Company](https://www.tamtam.ai/c/consolidated-contractors-company) (ccc.net)
A leading international entity specializing in construction, engineering, procurement, development, and investment, committed to providing reliable services while prioritizing client satisfaction and environmental responsibility | Construction | ๐ฌ๐ท Athens | 17,253 | |
| 2 | [OTE Group of Companies (HTO)](https://www.tamtam.ai/c/ote-group-of-companies-hto) (cosmote.gr)
A leading technology company in Greece, part of Deutsche Telekom Group, providing a wide range of telecom services and ICT solutions for digital transformation and growth | Telecommunications | ๐ฌ๐ท Athens | 7,648 | |
| 3 | [Eurobank](https://www.tamtam.ai/c/eurobank) (eurobank.gr)
A strong financial organization offering a wide range of products and services in banking and financial sectors, focusing on social responsibility and sustainability | Financial Services | ๐ฌ๐ท Athens | 6,916 | 1990 |
| 4 | [National Bank of Greece](https://www.tamtam.ai/c/national-bank-of-greece) (nbg.gr)
A bank with a rich history and a promising future, offering stability, expertise, digital services, and a strong presence in Greece and abroad | Banking | ๐ฌ๐ท Athens | 5,473 | 1841 |
| 5 | [Alpha Bank](https://www.tamtam.ai/c/alpha-bank) (alpha.gr)
Enabling progress in life and business through integrated finance, supporting businesses in the green and digital economy, fostering inclusive progress for people and communities. | Banking | ๐ฌ๐ท Athens | 5,173 | 1879 |
| 6 | [Metlen](https://www.tamtam.ai/c/metlen) (metlengroup.com)
Global industrial and energy provider leading the energy transition with integrated utility services and competitive green metallurgy operations on a European and global scale | Metal Ore Mining | ๐ฌ๐ท Maroussi - Athens | 4,179 | 1990 |
| 7 | [Kaizen Gaming](https://www.tamtam.ai/c/kaizen-gaming) (careers.kaizengaming.com)
A rapidly growing GameTech company operating in 13 countries, focused on technology and providing trusted online gaming experiences to customers worldwide | Entertainment Providers | ๐ฌ๐ท Athens | 3,249 | |
| 8 | [University of Patras](https://www.tamtam.ai/c/university-of-patras) (upatras.gr)
Public university offering diverse academic programs, extensive research facilities, and recognized excellence in science, technology, health, and environment. | Higher Education | ๐ฌ๐ท Patra | 3,116 | 1964 |
| 9 | [PPC S.A.](https://www.tamtam.ai/c/ppc-s-a) (ppcgroup.com)
Leading Greek electric utility in power generation, distribution, and supply, focusing on decarbonization, digitalization, renewables, and customer-centric growth, with significant market presence and assets | Utilities | ๐ฌ๐ท Athens | 2,980 | 1950 |
| 10 | [Aegean Airlines](https://www.tamtam.ai/c/aegean-airlines) (en.aegeanair.com)
Full-service airline operating extensive domestic and international flights, connecting Greece with 180 destinations across 49 countries. | Airlines and Aviation | ๐ฌ๐ท Kifisia - Athens | 2,462 | 1999 |
| 11 | [University of Thessaly](https://www.tamtam.ai/c/university-of-thessaly) (uth.gr)
Promoting scientific knowledge and research, offering undergraduate and postgraduate programs, contributing to local community and societal development through education | Higher Education | ๐ฌ๐ท Volos | 2,162 | 1984 |
| 12 | [National & Kapodistrian University of Athens](https://www.tamtam.ai/c/national-and-kapodistrian-university-of-athens) (en.uoa.gr)
A prestigious public university in Athens, Greece, offering a wide range of academic programs and conducting extensive research in various fields | Higher Education | ๐ฌ๐ท Athens | 2,094 | 1837 |
| 13 | [FAMAR](https://www.tamtam.ai/c/famar) (famar-group.com)
European contract manufacturing and development partner specializing in pharmaceutical and healthcare products, offering flexible solutions from development to distribution. | Pharmaceutical Manufacturing | ๐ฌ๐ท Athens | 1,898 | 1949 |
| 14 | [PwC Greece](https://www.tamtam.ai/c/pwc-greece) (pwc.com)
Network of firms delivering quality assurance, advisory, and tax services, committed to building trust in society and solving important problems. | Business Consulting and Services | ๐ฌ๐ท Marousi | 1,879 | |
| 15 | [Cosmote eValue](https://www.tamtam.ai/c/cosmote-evalue) (cosmote-evalue.gr)
A customer experience and relationship initiatives provider with 25 years of experience, operating in 20+ countries with a team of 7,000 members | Outsourcing and Offshoring Consulting | ๐ฌ๐ท Athens | 1,843 | 1999 |
| 16 | [Frigoglass](https://www.tamtam.ai/c/frigoglass) (frigoglass.com)
Global leader in ice cold merchandisers and glass packaging, providing bespoke coolers and sustainable refrigeration solutions to beverage brands worldwide | Appliances, Electrical, and Electronics Manufacturing | ๐ฌ๐ท Athens | 1,743 | 1996 |
| 17 | [Lidl Hellas](https://www.tamtam.ai/c/lidl-hellas) (team.lidl.gr)
A Greek organization focused on sustainability and employee satisfaction with over 6700 staff, 230 stores, and a commitment to teamwork and growth | Retail | ๐ฌ๐ท Thessaloniki | 1,615 | 1973 |
| 18 | [Ikos Resorts](https://www.tamtam.ai/c/ikos-resorts) (ikosresorts.com)
A hospitality group redefining all-inclusive holidays with personalized experiences, upscale services, and future growth in the Mediterranean region | Hospitality | ๐ฌ๐ท Nea Moudania | 1,598 | 2014 |
| 19 | [Dynacom Tankers Management, Ltd.](https://www.tamtam.ai/c/dynacom-tankers-management-ltd) (dynacomtm.com)
Specializing in managing modern and diverse oil tanker fleet, representing a strong presence in global oil industry with state-of-the-art vessels | Maritime Transportation | ๐ฌ๐ท Glyfada | 1,579 | 1991 |
| 20 | [Aktor Group](https://www.tamtam.ai/c/aktor-group) (intrakat.gr)
A leading international infrastructure provider offering construction, photovoltaic parks, quarry management, technical facilities, and project management services with extensive experience and expertise | Holding Companies | ๐ฌ๐ท Athens | 1,546 | 1950 |
| 21 | [ฮฃฮฮฮฮฮฮฮฮคฮฮฃ](https://www.tamtam.ai/c/company-peristeri) (sklavenitis.gr)
A Greek business specializing in retailing food, consumer goods, and durable goods, with a history dating back to 1954 | Retail | ๐ฌ๐ท Peristeri | 1,496 | 1954 |
| 22 | [Kotsovolos-ฮฯฯฯฯฮฒฮฟฮปฮฟฯ](https://www.tamtam.ai/c/kotsovolos) (kotsovolos.gr)
A leading retailer within the PPC Group in Greece and Cyprus, focused on empowering over 3,000 employees through training, growth opportunities, and innovative projects for a Better Life | Retail | ๐ฌ๐ท Neo Irakleio | 1,487 | 1950 |
| 23 | [GEK TERNA Group of Companies](https://www.tamtam.ai/c/gek-terna-group-of-companies) (gekterna.com)
A leading business group in Greece with a global presence, specializing in infrastructure, energy production, waste management, and real estate development | Construction | ๐ฌ๐ท Athens | 1,476 | 1969 |
| 24 | [Intralot](https://www.tamtam.ai/c/intralot) (intralot.com)
A leading gaming solutions supplier and operator, providing innovative omni-channel solutions to lottery and gaming organizations worldwide Committed to sustainable development and responsible gaming | IT Services and IT Consulting | ๐ฌ๐ท Peania | 1,468 | 1992 |
| 25 | [OPAP](https://www.tamtam.ai/c/opap) (allwyn.gr)
A leading gaming organization in Greece, offering lotteries, sports betting, horseracing, instant win games, VLTs, and promoting Responsible Gaming | Entertainment Providers | ๐ฌ๐ท Athens | 1,355 | 1958 |
| 26 | [AVAX GROUP](https://www.tamtam.ai/c/avax-group) (avax.gr)
A leading Greek construction group listed on Athens Stock Exchange, specializing in infrastructure, MEP works, international projects, real estate, and more | Construction | ๐ฌ๐ท Marousi | 1,254 | |
| 27 | [Accenture Greece](https://www.tamtam.ai/c/accenture-greece) (accenture.com)
Provides global consulting services, leveraging technology to drive innovation, create digital ecosystems, and transform organizations across private and public sectors, enhancing competitiveness. | IT Services and IT Consulting | ๐ฌ๐ท Kifisia | 1,209 | 1992 |
| 28 | [Goldair Handling](https://www.tamtam.ai/c/goldair-handling) (goldair-handling.com)
Ground handling services provider offering passenger, ramp, and cargo services at multiple airports, including lounges, certification programs, and international expansion into consulting and PRM services | Airlines and Aviation | ๐ฌ๐ท Athens Spata | 1,209 | 1992 |
| 29 | [THENAMARIS](https://www.tamtam.ai/c/thenamaris) (thenamaris.com)
Global ship manager operating diverse high-specification ocean-going vessels with a focus on safe, efficient, and profitable management services worldwide | Maritime Transportation | ๐ฌ๐ท Athens | 1,186 | 1970 |
| 30 | [Uni Systems](https://www.tamtam.ai/c/uni-systems) (unisystems.com)
An established ICT partner with over 60 years of experience, providing innovative solutions to European and international organizations in various sectors | IT Services and IT Consulting | ๐ฌ๐ท Athens | 1,100 | 1964 |
| 31 | [University of Athens](https://www.tamtam.ai/c/university-of-athens) (uoa.gr)
Oldest university in Southeast Europe, established in 1837, offering a wide range of educational programs and ranked 200th in the world | Research Services | ๐ฌ๐ท Athens | 1,098 | 1837 |
| 32 | [Public Group](https://www.tamtam.ai/c/public-group) (public.gr)
A platform-based retailer in Greece and Cyprus offering a wide range of household electronics and entertainment products through physical stores and online platforms | Retail | ๐ฌ๐ท Kifisia | 1,068 | 2005 |
| 33 | [Intracom Telecom](https://www.tamtam.ai/c/intracom-telecom) (intracom-telecom.com)
Global provider of technology systems and solutions specializing in fixed wireless access, 5G/4G innovation, IoT, SDN/NFV, Big Data analytics, Smart City solutions, and defense systems | Telecommunications | ๐ฌ๐ท Peania | 1,065 | 1977 |
| 34 | [Mellon Group](https://www.tamtam.ai/c/mellon-group) (mellongroup.com)
Multinational group providing technology solutions and outsourced services to organizations in consumer business, financial, utilities, telecom, and retail sectors | IT Services and IT Consulting | ๐ฌ๐ท Piraeus | 1,040 | 1994 |
| 35 | [Pharmathen](https://www.tamtam.ai/c/pharmathen) (pharmathen.com)
Pharmathen is a global pharmaceutical company focused on developing innovative drug delivery technologies, with a diverse product portfolio and commitment to improving patient lives | Pharmaceutical Manufacturing | ๐ฌ๐ท Marousi | 1,004 | 1969 |
| 36 | [PeopleCert](https://www.tamtam.ai/c/peoplecert) (peoplecert.org)
Global leader in delivering exams and accreditation services worldwide, enabling individuals to achieve their full potential through learning and exams | Education Administration Programs | ๐ฌ๐ท Athens | 951 | 2000 |
| 37 | [Elpen Pharmaceutical Co. Inc.](https://www.tamtam.ai/c/elpen-pharmaceutical-co-inc) (elpen.gr)
A Greek pharmaceutical manufacturer specializing in product development across multiple technologies and therapeutic areas, with a global mission to enhance patients' lives | Pharmaceutical Manufacturing | ๐ฌ๐ท Pikermi | 916 | 1965 |
| 38 | [ENTERSOFTONE](https://www.tamtam.ai/c/entersoftone) (entersoftone.gr)
provider of business software products and services enhancing efficiency, agility, and competitiveness for enterprises across Greece, Cyprus, Bulgaria, Romania | Software Development | ๐ฌ๐ท Kallithea | 912 | 2002 |
| 39 | [KPMG Greece](https://www.tamtam.ai/c/kpmg-greece) (kpmg.com)
Offering audit, tax, legal, and advisory services to businesses in Greece and abroad Over 800 professionals with specialized expertise ISO certified | Accounting | ๐ฌ๐ท Athens | 880 | 1971 |
| 40 | [scania](https://www.tamtam.ai/c/scania) (scania.com)
Specializing in transportation and vehicle manufacturing, the company operates in the southernmost province of Sweden with a focus on population and culture | Truck Transportation | ๐ฌ๐ท Athens | 876 | 1821 |
| 41 | [METRO AEBE](https://www.tamtam.ai/c/metro-aebe) (metro.com.gr)
With a focus on customer respect, quality products, safe work environment, and social contribution, this Greek business operates retail and wholesale stores nationwide | Retail | ๐ฌ๐ท | 864 | 1976 |
| 42 | [MARAN GAS MARITIME INC.](https://www.tamtam.ai/c/maran-gas-maritime-inc) (marangas.com)
Specializing in gas shipping, the organization manages LNG and LPG carriers within a diverse fleet, with over 300 professionals supporting a large crew | Maritime Transportation | ๐ฌ๐ท Athens | 848 | |
| 43 | [EUROPEAN DYNAMICS](https://www.tamtam.ai/c/european-dynamics) (eurodyn.com)
Design, develop, support, and operate complex IT systems and software products tailored for eGovernment activities across multiple countries. | IT Services and IT Consulting | ๐ฌ๐ท Marousi | 843 | 1993 |
| 44 | [Danaos Shipping Co. Ltd](https://www.tamtam.ai/c/danaos-shipping-co-ltd) (danaosshipping.gr)
A leading provider of containership management services with a large fleet of modern, large-size containerships, known for innovation, safety, efficiency, and environmental responsibility | Maritime Transportation | ๐ฌ๐ท Piraeus | 830 | 1972 |
| 45 | [J&P- AVAX S.A.](https://www.tamtam.ai/c/j-and-p-avax-s-a) (avax-sa.gr)
A multinational group with a strong presence in 15 countries, specializing in various projects with a focus on growth and acquisition opportunities | Construction | ๐ฌ๐ท Marousi | 815 | |
| 46 | [GasLog Ltd.](https://www.tamtam.ai/c/gaslog-ltd) (gaslogltd.com)
Global provider of LNG shipping services, emphasizing safety, efficiency, and reliability Committed to improving vessel lifecycle and charter processes | Maritime Transportation | ๐ฌ๐ท Piraeus | 814 | 2001 |
| 47 | [Coffee Island](https://www.tamtam.ai/c/coffee-island) (coffeeisland.gr)
Sustainability-focused global coffee chain operating over 460 stores across four continents. In-house bean processing, quality control, extensive franchise network. | Food and Beverage Services | ๐ฌ๐ท Patra | 810 | 1999 |
| 48 | [Sarantis Group](https://www.tamtam.ai/c/sarantis-group) (sarantisgroup.com)
A multinational consumer products group with a 50-year history, offering personal care, home care, health care products, luxury cosmetics, and recognized brands globally | Manufacturing | ๐ฌ๐ท Athens | 802 | 1964 |
| 49 | [Viva.com](https://www.tamtam.ai/c/viva-com) (viva.com)
A leading European cloud-based neobank offering advanced digital payments solutions and embedded banking services across 24 markets in Europe | Financial Services | ๐ฌ๐ท Marousi | 791 | 2010 |
| 50 | [Alumil](https://www.tamtam.ai/c/alumil) (alumil.com)
Leading aluminium extrusion group in South-East Europe, specializing in production and distribution of architectural aluminium systems with advanced facilities and extensive product range | Wholesale Building Materials | ๐ฌ๐ท N. Efkarpia | 789 | 1988 |
## How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
## More company lists in Greece
- [The largest companies in Greece](https://www.tamtam.ai/l/largest-companies-greece) (778)
- [Manufacturers in Greece](https://www.tamtam.ai/l/manufacturers-greece) (92)
- [Companies with in-house R&D in Greece](https://www.tamtam.ai/l/r-and-d-companies-greece) (83)
- [Retail chains in Greece](https://www.tamtam.ai/l/retail-chains-greece) (78)
- [Critical infrastructure operators in Greece](https://www.tamtam.ai/l/critical-infrastructure-operators-greece) (73)
- [Consumer goods companies in Greece](https://www.tamtam.ai/l/consumer-goods-companies-greece) (57)
- [Pharmaceutical Manufacturing companies in Greece](https://www.tamtam.ai/l/pharmaceutical-manufacturing-companies-greece) (55)
- [Education providers in Greece](https://www.tamtam.ai/l/education-companies-greece) (54)
- [Companies with a mobile app in Greece](https://www.tamtam.ai/l/companies-with-mobile-app-greece) (50)
- [Corporate groups and holding companies in Greece](https://www.tamtam.ai/l/holding-companies-greece) (49)
- [Public sector organisations in Greece](https://www.tamtam.ai/l/public-sector-organisations-greece) (49)
- [Financial services firms in Greece](https://www.tamtam.ai/l/financial-services-firms-greece) (48)
- [Pharmaceutical companies in Greece](https://www.tamtam.ai/l/pharmaceutical-companies-greece) (48)
- [Food and beverage companies in Greece](https://www.tamtam.ai/l/food-and-beverage-companies-greece) (47)
- [Food and Beverage Manufacturing companies in Greece](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-greece) (44)
- [Distributors and wholesalers in Greece](https://www.tamtam.ai/l/distributors-and-wholesalers-greece) (43)
- [Family-owned companies in Greece](https://www.tamtam.ai/l/family-owned-companies-greece) (41)
- [IT Services and IT Consulting companies in Greece](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-greece) (38)
- [Software Development companies in Greece](https://www.tamtam.ai/l/software-development-companies-greece) (38)
- [IT services companies in Greece](https://www.tamtam.ai/l/it-services-companies-greece) (38)
- [Publicly traded companies in Greece](https://www.tamtam.ai/l/publicly-traded-companies-greece) (37)
- [Logistics companies in Greece](https://www.tamtam.ai/l/logistics-companies-greece) (36)
- [E-commerce companies in Greece](https://www.tamtam.ai/l/ecommerce-companies-greece) (34)
- [Food and Beverage Services companies in Greece](https://www.tamtam.ai/l/food-and-beverage-services-companies-greece) (34)
## The same list elsewhere in Greece
- [Multinational companies in Athens](https://www.tamtam.ai/l/multinational-companies-athens) (74)
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Source: https://www.tamtam.ai/l/multinational-companies-greece