| 1 (1522) | Bulgarian Academy of Sciences * | BGR |  |
| 2 (2709) | Technical University of Sofia | BGR |  |
| 3 (2880) | Institute of Biophysics and Biomedical Engineering Bulgarian Academy of Sciences | BGR | |
| 4 (3326) | Medical University - Plovdiv | BGR | |
| 5 (3421) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | |
| 6 (4157) | Sofia University | BGR | |
| 7 (4415) | University of Plovdiv Paisii Hilendarski | BGR | |
| 8 (4693) | University of Forestry Sofia | BGR | |
| 9 (4792) | Trakia University | BGR | |
| 10 (4935) | Agricultural University of Plovdiv | BGR | |
| 11 (4945) | University Prof. Dr. Assen Zlatarov | BGR | |
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