| 1 (1987) | Bulgarian Academy of Sciences * | BGR |  |
| 2 (2771) | Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences | BGR | |
| 3 (5092) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
| 4 (5377) | Academician Emil Djakov Institute of Electronics Bulgarian Academy of Sciences | BGR | |
| 5 (6101) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | |
| 6 (6170) | Institute of Information and Communication Technologies Bulgarian Academy of Sciences | BGR | |
| 7 (6433) | Institute of General and Inorganic Chemistry Bulgarian Academy of Sciences | BGR | |
| 8 (6447) | Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences | BGR | |
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