| 1 (25) | Russian Academy of Sciences * | RUS |  |
| 2 (94) | Polish Academy of Sciences * | POL | |
| 3 (162) | Academy of Sciences of the Czech Republic * | CZE | |
| 4 (180) | Institute of Oceanology Polish Academy of Sciences | POL | |
| 5 (211) | Bulgarian Academy of Sciences * | BGR | |
| 6 (283) | Zoological Institute Russian Academy of Sciences | RUS | |
| 7 (341) | A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Sciences | RUS | |
| 8 (377) | Hungarian Academy of Sciences * | HUN | |
| 9 (437) | Centre for Ecological Research | HUN | |
| 10 (439) | P P Shirshov Institute of Oceanology Russian Academy of Sciences | RUS | |
| 11 (460) | Ruder Boskovic Institute * | HRV | |
| 12 (462) | Institute of Botany of the ASCR | CZE | |
| 13 (514) | Slovak Academy of Sciences * | SVK | |
| 14 (517) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | |
| 15 (543) | National Academy of Sciences of Ukraine * | UKR | |
| 16 (545) | National Institute of Biology | SVN | |
| 17 (551) | Biology Centre of the ASCR | CZE | |
| 18 (565) | Limnological Institute Russian Academy of Sciences | RUS | |
| 19 (571) | Karelian Research Center Russian Academy of Sciences | RUS | |
| 20 (572) | Institute of Vertebrate Biology of the ASCR | CZE | |
| 21 (622) | Slovenian Academy of Sciences and Arts * | SVN | |
| 22 (630) | Timiryazev Institute of Plant Physiology Russian Academy of Sciences | RUS | |
| 23 (632) | Papanin Institute for Biology of Inland Waters Russian Academy of Sciences | RUS | |
| 24 (637) | Nature Research Centre | LTU | |
| 25 (638) | Jozef Stefan Institute | SVN | |
| 26 (678) | V.I. Il'ichev Pacific Oceanological Institute Russian Academy of Sciences | RUS | |
| 27 (679) | Pacific Institute of Geography Russian Academy of Sciences | RUS | |
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