| 1 (53) | Russian Academy of Sciences * | RUS |  |
| 2 (196) | Polish Academy of Sciences * | POL | |
| 3 (395) | Academy of Sciences of the Czech Republic * | CZE | |
| 4 (497) | Hungarian Academy of Sciences * | HUN | |
| 5 (498) | Academy of Romanian Scientists | ROU | |
| 6 (1071) | Federal Research Centre Fundamentals of Biotechnology Russian Academy of Sciences | RUS | |
| 7 (1127) | Lithuanian Energy Institute | LTU | |
| 8 (1138) | Lithuanian Academy of Sciences * | LTU | |
| 9 (1149) | Slovak Academy of Sciences * | SVK | |
| 10 (1204) | Stanislaw Leszczycki Institute of Geography and Spatial Organization Polish Academy of Sciences | POL | |
| 11 (1221) | Romanian Academy * | ROU | |
| 12 (1257) | Global Change Research Institute of the ASCR | CZE | |
| 13 (1360) | National Academy of Sciences of Ukraine * | UKR | |
| 14 (1401) | Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences | RUS | |
| 15 (1413) | Slovenian Academy of Sciences and Arts * | SVN | |
| 16 (1580) | Research Centre for Astronomy and Earth Sciences Hungarian Academy of Sciences | HUN | |
| 17 (1603) | Institute of Geography Russian Academy of Sciences | RUS | |
| 18 (1682) | Serbian Academy of Sciences and Arts * | SRB | |
| 19 (1957) | Scientific Research Center Slovenian Academy of Science and Arts | SVN | |
| 20 (1975) | Bulgarian Academy of Sciences * | BGR | |
| 21 (2025) | A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Sciences | RUS | |
| 22 (2163) | P P Shirshov Institute of Oceanology Russian Academy of Sciences | RUS | |
| 23 (2214) | Kola Science Centre Russian Academy of Sciences | RUS | |
| 24 (2293) | Trofimuk United Institute of Geology, Geophysics and Mineralogy Russian Academy of Sciences | RUS | |
| 25 (2307) | V.B. Sochava Institute of Geography Russian Academy of Sciences | RUS | |
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