| 1 (2618) | Bulgarian Academy of Sciences * | BGR |  |
| 2 (3922) | Sofia University | BGR |  |
| 3 (4014) | Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences | BGR | |
| 4 (4107) | Medical University of Sofia * | BGR | |
| 5 (4368) | Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences | BGR | |
| 6 (4735) | Academician Emil Djakov Institute of Electronics Bulgarian Academy of Sciences | BGR | |
| 7 (5296) | University of Chemical Technology and Metallurgy | BGR | |
| 8 (5499) | University of Plovdiv Paisii Hilendarski | BGR | |
| 9 (5698) | Medical University - Plovdiv | BGR | |
| 10 (5825) | Trakia University | BGR | |
| 11 (6397) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
| 12 (6534) | Technical University of Sofia | BGR | |
| 13 (6659) | Institute of Information and Communication Technologies Bulgarian Academy of Sciences | BGR | |
| 14 (6704) | South West University Neofit Rilski | BGR | |
| 15 (6746) | Institute of General and Inorganic Chemistry Bulgarian Academy of Sciences | BGR | |
| 16 (6782) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | |
| 17 (6830) | University of Rousse | BGR | |
| 18 (6941) | Technical University of Varna | BGR | |
|
