# Top 29 research institutes in Greece
Tamtam tracks 29 research institutes headquartered in Greece. This list ranks all of them by number of employees on LinkedIn, led by Aristotle University of Thessaloniki (AUTH), University of Patras and National Technical University of Athens. Their median headcount is 763. Half of them were founded in 1977 or later. The most common headquarters are Athens (6) and Thessaloniki (5).
The research institutes in Greece are primarily higher education institutions. Companies such as Aristotle University of Thessaloniki, University of Patras, and National & Kapodistrian University of Athens are large public universities offering diverse academic programs and extensive research. Other notable institutions include the National Technical University of Athens, specializing in engineering and applied sciences, and the Centre for Research & Technology Hellas (CERTH), a research center focused on competitive grants.
These organizations are predominantly large, established institutions, with many founded in the 20th century. A significant concentration of these research institutes is located in Athens and Thessaloniki, indicating a geographical clustering of academic and research activities within Greece.
π¬π· Greece Β· 29 companies Β· Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Aristotle University of Thessaloniki (AUTH)](https://www.tamtam.ai/c/aristotle-university-of-thessaloniki-auth) (auth.gr)
A large university in Greece with 10 faculties, 40 schools, and over 73,000 students offers undergraduate, postgraduate, and doctoral programs | Higher Education | π¬π· Thessaloniki | 3,342 | 1925 |
| 2 | [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 | π¬π· Patra | 3,116 | 1964 |
| 3 | [National Technical University of Athens](https://www.tamtam.ai/c/national-technical-university-of-athens) (ntua.gr)
Higher education institution specializing in engineering, architecture, applied sciences, offering undergraduate and postgraduate programs with historic and modern campuses in Athens. | Research Services | π¬π· Athens | 2,451 | |
| 4 | [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 | π¬π· Volos | 2,162 | 1984 |
| 5 | [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 | π¬π· Athens | 2,094 | 1837 |
| 6 | [University of Crete](https://www.tamtam.ai/c/university-of-crete) (uoc.gr)
Leading higher education institution in Crete, Greece known for academic excellence and reputation, offering a wide range of educational programs | Higher Education | π¬π· Rethymno | 1,441 | 1977 |
| 7 | [Democritus University of Thrace - (D.U.Th.)](https://www.tamtam.ai/c/democritus-university-of-thrace-d-u-th) (duth.gr)
A prestigious public university in Thrace, Greece, offering high-quality education through two faculties and eighteen departments in four cities | Higher Education | π¬π· Komotini | 1,385 | 1973 |
| 8 | [University of West Attica](https://www.tamtam.ai/c/university-of-west-attica) (uniwa.gr)
Provides higher education through various departments, offering undergraduate and postgraduate studies, fostering research and collaboration in Greece. | Higher Education | π¬π· Aigaleo | 1,011 | 2018 |
| 9 | [Athens University of Economics and Business](https://www.tamtam.ai/c/athens-university-of-economics-and-business) (aueb.gr)
A prestigious institution with a century of experience in producing industry leaders, entrepreneurs, and top faculty members through cutting-edge education and research | Higher Education | π¬π· Athens | 931 | 1920 |
| 10 | [Centre for Research & Technology Hellas (CERTH)](https://www.tamtam.ai/c/centre-for-research-and-technology-hellas-certh) (certh.gr)
Leading Greek research center ranked among the top 15 in the EU for competitive research grants participation | Research Services | π¬π· Thessaloniki | 882 | 2000 |
| 11 | [University of Macedonia](https://www.tamtam.ai/c/university-of-macedonia) (uom.gr)
A modern public institution of higher education focusing on quality, freedom, democracy, and personal development through research and knowledge dissemination | Higher Education | π¬π· Thessaloniki | 860 | 1958 |
| 12 | [Ethnikon kai Kapodistriakon Panepistimion Athinon](https://www.tamtam.ai/c/ethnikon-kai-kapodistriakon-panepistimion-athinon) (uoa.gr)
A prestigious educational institution in Greece offering valuable services to Greek citizens worldwide since its founding in 1837 | Higher Education | π¬π· Athens | 807 | 1837 |
| 13 | [University of Piraeus](https://www.tamtam.ai/c/university-of-piraeus) (unipi.gr)
A Greek public university in Piraeus offering academic programs in business management, computer science, economics, finance, and maritime studies | Higher Education | π¬π· Piraeus | 798 | 1938 |
| 14 | [NCSR "DEMOKRITOS"](https://www.tamtam.ai/c/ncsr-demokritos) (demokritos.gr)
Multidisciplinary research center running impactful research and innovation projects in AI, advanced materials, energy, environment, telecommunications, manufacturing, and quantum computing. | Research Services | π¬π· Agia Paraskevi | 781 | 1961 |
| 15 | [Agricultural University of Athens](https://www.tamtam.ai/c/agricultural-university-of-athens) (www2.aua.gr)
An institution in Greece offering agricultural education and research, with a focus on producing high-quality graduates and conducting applied research | Research Services | π¬π· Athens | 763 | 1920 |
| 16 | [NTUA](https://www.tamtam.ai/c/ntua) (ntua.gr)
A prestigious higher education institution in Greece offering engineering disciplines, architecture, and applied sciences with over 8,500 undergraduates and 1,500 postgraduate students | Research Services | π¬π· Zografou-Athens | 714 | |
| 17 | [University of the Peloponnese](https://www.tamtam.ai/c/university-of-the-peloponnese) (uop.gr)
The organization enriches the national and cultural character of the Peloponnese region and advances university education in Greece | Higher Education | π¬π· Tripolis | 667 | 2002 |
| 18 | [International Hellenic University](https://www.tamtam.ai/c/international-hellenic-university) (ihu.gr)
An educational institution offering postgraduate programs in various fields with campuses across different cities in Greece | Higher Education | π¬π· Thessaloniki | 663 | 2005 |
| 19 | [University of Western Macedonia](https://www.tamtam.ai/c/university-of-western-macedonia) (uowm.gr)
An educational institution offering a wide range of courses and programs in multiple cities in Western Macedonia | Higher Education | π¬π· Kozani | 662 | 2004 |
| 20 | [Hellenic Mediterranean University](https://www.tamtam.ai/c/hellenic-mediterranean-university) (hmu.gr)
An educational institution offering high-quality undergraduate, postgraduate, and doctoral education in various fields, conducting impactful research, and collaborating nationally and internationally | Higher Education | π¬π· Heraklion | 515 | |
| 21 | [Foundation for Research and Technology - Hellas (FORTH)](https://www.tamtam.ai/c/foundation-for-research-and-technology-hellas-forth) (forth.gr)
A leading research foundation in Greece with multiple institutes focusing on various fields such as electronics, biology, mathematics, and genomics | Research Services | π¬π· Heraklion | 495 | 1983 |
| 22 | [University of York Europe Campus](https://www.tamtam.ai/c/university-of-york-europe-campus) (york.citycollege.eu)
A European educational institution offering a wide range of undergraduate and postgraduate programs with a focus on internationalization and academic excellence | Higher Education | π¬π· Thessaloniki | 458 | 1989 |
| 23 | [Ionian University](https://www.tamtam.ai/c/ionian-university) (ionio.gr)
Academic institution offering undergraduate and postgraduate programs, fostering international collaborations, and promoting cultural events in the Ionian Islands, Greece | Higher Education | π¬π· Corfu | 450 | 1984 |
| 24 | [Panteion University of Social and Political Sciences](https://www.tamtam.ai/c/panteion-university-of-social-and-political-sciences) (panteion.gr)
A leading university in Athens, Greece, offering education, critical thinking, and research in social and political sciences for societal benefit | Higher Education | π¬π· Athens | 421 | 1927 |
| 25 | [Technical University of Crete](https://www.tamtam.ai/c/technical-university-of-crete) (tuc.gr)
A dynamic university focusing on research integrated with education in various engineering fields, with state-of-the-art facilities and highly qualified staff | Higher Education | π¬π· Chania | 381 | 1977 |
| 26 | [Harokopio University of Athens](https://www.tamtam.ai/c/harokopio-university-of-athens) (hua.gr)
A public university in Athens dedicated to research and learning, offering undergraduate and postgraduate programs in various intellectual areas | Higher Education | π¬π· Kallithea | 344 | 1929 |
| 27 | [Athena Research Center](https://www.tamtam.ai/c/athena-research-center) (athenarc.gr)
Leading research center specializing in information, communication, and knowledge technologies, fostering innovation, and promoting lifelong learning and technological cluster formation | Research Services | π¬π· Marousi | 321 | 2003 |
| 28 | [Centrale MΓ©diterranΓ©e](https://www.tamtam.ai/c/centrale-mediterranee) (centrale-mediterranee.fr)
A dynamic school offering top-notch engineering education, fostering innovation, international collaboration, and personal growth through diverse extracurricular opportunities | Higher Education | π¬π· Marseille | 262 | 2006 |
| 29 | [iED - Institute of Entrepreneurship Development](https://www.tamtam.ai/c/ied-institute-of-entrepreneurship-development) (ied.eu)
Award-winning NGO empowering organizations and entrepreneurs through expert guidance, securing European funding, and fostering a dynamic ecosystem for impactful growth and innovation. | Research Services | π¬π· Larissa | 57 | 2005 |
## 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 12, 2026.
## More company lists in Greece
- [The largest companies in Greece](https://www.tamtam.ai/l/largest-companies-greece) (778)
- [Multinational companies in Greece](https://www.tamtam.ai/l/multinational-companies-greece) (217)
- [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)
## The same list elsewhere
- [Research institutes in the world](https://www.tamtam.ai/l/research-institutes-in-the-world) (5,686)
- [Research institutes in Europe](https://www.tamtam.ai/l/research-institutes-in-europe) (2,713)
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Source: https://www.tamtam.ai/l/research-institutes-greece