| 1 (1184) | Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences | BGR | |
| 2 (2335) | Bulgarian Academy of Sciences * | BGR | |
| 3 (2708) | Stephan Angeloff Institute of Microbiology Bulgarian Academy of Sciences | BGR | |
| 4 (3361) | Institute of Biophysics and Biomedical Engineering Bulgarian Academy of Sciences | BGR | |
| 5 (3623) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | |
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