| 1 (19) | Russian Academy of Sciences * | RUS |  |
| 2 (35) | Polish Academy of Sciences * | POL | |
| 3 (98) | Academy of Sciences of the Czech Republic * | CZE | |
| 4 (272) | Hungarian Academy of Sciences * | HUN | |
| 5 (283) | A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Sciences | RUS | |
| 6 (284) | Zoological Institute Russian Academy of Sciences | RUS | |
| 7 (305) | National Academy of Sciences of Ukraine * | UKR | |
| 8 (312) | Slovak Academy of Sciences * | SVK | |
| 9 (322) | Biology Centre of the ASCR | CZE | |
| 10 (334) | Institute of Animal Reproduction and Food Research Polish Academy of Sciences | POL | |
| 11 (349) | Bulgarian Academy of Sciences * | BGR | |
| 12 (457) | Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences | POL | |
| 13 (463) | Museum and Institute of Zoology Polish Academy of Sciences | POL | |
| 14 (473) | Institute of Vertebrate Biology of the ASCR | CZE | |
| 15 (487) | I.I. Schmalhausen Institute of Zoology National Academy of Sciences of Ukraine | UKR | |
| 16 (492) | Institute of Cytology and Genetics Russian Academy of Sciences | RUS | |
| 17 (504) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | |
| 18 (505) | Centre for Ecological Research | HUN | |
| 19 (557) | Koltsov Institute of Developmental Biology Russian Academy of Sciences | RUS | |
| 20 (559) | Palaeontological Institute Russian Academy of Sciences | RUS | |
| 21 (614) | Institute of Ecology and Botany Hungarian Academy of Sciences | HUN | |
| 22 (638) | Nature Research Centre | LTU | |
| 23 (714) | Papanin Institute for Biology of Inland Waters Russian Academy of Sciences | RUS | |
| 24 (720) | P P Shirshov Institute of Oceanology Russian Academy of Sciences | RUS | |
| 25 (755) | Limnological Institute Russian Academy of Sciences | RUS | |
| 26 (759) | Russian Academy of Agricultural Sciences | RUS | |
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