| 1 (2149) | Medical University of Sofia * | BGR |  |
| 2 (2272) | Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences | BGR |  |
| 3 (3596) | Sofia University | BGR | |
| 4 (3727) | University of Chemical Technology and Metallurgy | BGR | |
| 5 (4255) | Bulgarian Academy of Sciences * | BGR | |
| 6 (4368) | Trakia University | BGR | |
| 7 (5234) | Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences | BGR | |
| 8 (5337) | University of Plovdiv Paisii Hilendarski | BGR | |
| 9 (5463) | Technical University of Sofia | BGR | |
| 10 (5681) | Medical University, Plovdiv | BGR | |
| 11 (6044) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | |
| 11 (6044) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
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