| 1 (752) | Bulgarian Academy of Sciences * | BGR |  |
| 2 (1109) | Sofia University | BGR |  |
| 3 (3007) | Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences | BGR | |
| 4 (3231) | Medical University of Sofia * | BGR | |
| 5 (4706) | University of Plovdiv Paisii Hilendarski | BGR | |
| 6 (5297) | Technical University of Sofia | BGR | |
| 7 (5530) | Medical University, Plovdiv | BGR | |
| 8 (5631) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | |
| 9 (5940) | University of Chemical Technology and Metallurgy | BGR | |
| 10 (5992) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
| 11 (6037) | Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences | BGR | |
| 12 (6085) | Trakia University | BGR | |
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