| Best quartile | |||||
|---|---|---|---|---|---|
| 1 (1638) | National Observatory of Athens | GRC |  |  | |
| 2 (2372) | Foundation for Research and Technology Hellas * | GRC | | | |
| 3 (2623) | Institute of Molecular Biology and Biotechnology | GRC | | | |
| 4 (2733) | Academy of Athens | GRC | | | |
| 5 (2814) | Demokritos, National Centre for Scientific Research | GRC | | | |
| 6 (3582) | Centre for Research and Technology Hellas | GRC | | | |
| 7 (4257) | Institute of Electronic Structure and Laser | GRC | | | |
| 8 (4340) | Institute of Computer Science | GRC | | | |
| 9 (5126) | Institute of Chemical Engineering and High Temperature Chemical Processes | GRC | | | |
| 10 (5475) | National Hellenic Research Foundation | GRC | |  | |
