| 1 (56) | Russian Academy of Sciences * | RUS |  |
| 2 (129) | Polish Academy of Sciences * | POL | |
| 3 (409) | Academy of Sciences of the Czech Republic * | CZE | |
| 4 (433) | Hungarian Academy of Sciences * | HUN | |
| 5 (719) | Centre for Ecological Research | HUN | |
| 6 (863) | Romanian Academy * | ROU | |
| 7 (1158) | Global Change Research Institute of the ASCR | CZE | |
| 8 (1257) | Research Centre for Astronomy and Earth Sciences Hungarian Academy of Sciences | HUN | |
| 9 (1401) | National Academy of Sciences of Ukraine * | UKR | |
| 10 (1618) | Slovak Academy of Sciences * | SVK | |
| 11 (1728) | Ruder Boskovic Institute * | HRV | |
| 12 (1765) | Jozef Stefan Institute | SVN | |
| 13 (1830) | Slovenian Academy of Sciences and Arts * | SVN | |
| 14 (1859) | Institute of Geography Russian Academy of Sciences | RUS | |
| 15 (1872) | Bulgarian Academy of Sciences * | BGR | |
| 16 (1952) | Serbian Academy of Sciences and Arts * | SRB | |
| 17 (1997) | National Institute for Economic Research Costin C Kiritescu | ROU | |
| 18 (2061) | A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Sciences | RUS | |
| 19 (2253) | Scientific Research Center Slovenian Academy of Science and Arts | SVN | |
| 20 (2308) | Komi Scientific Center Russian Academy of Sciences | RUS | |
| 21 (2365) | Karelian Research Center Russian Academy of Sciences | RUS | |
| 22 (2401) | P P Shirshov Institute of Oceanology Russian Academy of Sciences | RUS | |
| 23 (2420) | Limnological Institute Russian Academy of Sciences | RUS | |
| 24 (2477) | Azerbaijan National Academy of Sciences * | AZE | |
| 25 (2502) | Marine Hydrophysical Institute National Academy of Sciences of Ukraine | UKR | |
| 26 (2522) | Kola Science Centre Russian Academy of Sciences | RUS | |
| 27 (2546) | Dagestan Scientific Center Russian Academy of Sciences | RUS | |
| 28 (2563) | Trofimuk United Institute of Geology, Geophysics and Mineralogy Russian Academy of Sciences | RUS | |
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