| 1 (1720) | Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences | BGR |  |
| 2 (3006) | Medical University of Sofia * | BGR |  |
| 3 (3300) | Academician Emil Djakov Institute of Electronics Bulgarian Academy of Sciences | BGR | |
| 4 (4246) | Sofia University | BGR | |
| 5 (4348) | Trakia University | BGR | |
| 6 (4575) | Bulgarian Academy of Sciences * | BGR | |
| 7 (4961) | University of Chemical Technology and Metallurgy | BGR | |
| 8 (5220) | Medical University - Plovdiv | BGR | |
| 9 (5285) | University of Plovdiv Paisii Hilendarski | BGR | |
| 10 (5449) | South West University Neofit Rilski | BGR | |
| 11 (5460) | Technical University of Sofia | BGR | |
| 12 (5806) | Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences | BGR | |
| 13 (6008) | Institute of General and Inorganic Chemistry Bulgarian Academy of Sciences | BGR | |
| 14 (6168) | Institute of Information and Communication Technologies Bulgarian Academy of Sciences | BGR | |
| 15 (6587) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | |
| 15 (6587) | Technical University of Varna | BGR | |
| 15 (6587) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
| 15 (6587) | University of Rousse | BGR | |
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