Greek Universities
- Greek Universities Network (GUnet)
- Agricultural University of Athens
- Aristotle University of Thessaloniki
- Athens University of Economics and Business
- Democritus University of Thrace
- National & Capodistrian University of Athens
- National Technical University of Athens
- Harokopio University
- Hellenic Open University
- Ionian University
- Panteion University
- School of Fine Arts
- University of the Aegean
- University of Ioannina
- University of Macedonia
- University of Patras
- University of Piraeus
- University of Thessaly
- see also Greece: Online Library Servers
Research Institutes
- Biomedical Sciences Research Center A. Fleming
- Center for European Constitutional Law (CECL, Themistoclis & Dimitris Tsatsos Foundation)
- Center for the Greek Language
- Center for Renewable Energy Sources (CRES)
- Center for Solid Fuels Technology & Applications
- Computer Techonology Institute
- Export Research & Studies Institute (IEES)
- Forest Research Institute (National Agricultural Research Foundation, NAGREF)
- Foundation for Economic & Industrial Research(IOBE)
- Foundation for Research & Technology Hellas (FORTH)
- Geodynamic Institute of the National Observatory of Athens
- Hellenic Geological Institute
- Hellenic Institute for Occupational Health and Safety (ELINYAE)
- Hellenic Pasteur Institute
- Institute of Biomedical Technology (INBIT)
- Institute of Geology and Mineral Exploration
- Institute of International Relations (IIR)
- Institute for International Economic Relations(IIER)
- Institute for Language and Speech Processing(ILSP)
- Institute of Marine Biology of Crete
- Mediterranean Agronomic Institute of Chania
- National Center for Social Research (EKKE)
- National Observatory of Athens
- National Research Center for Physical Sciences (NRCPS) Demokritos
- National Research Foundation (EIE)
- Research Centre for Equal Opportunities (KETHI)