| 1 (521) | Bulgarian Academy of Sciences * | BGR |  |
| 2 (609) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
| 3 (633) | Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences | BGR | |
| 4 (636) | University of Plovdiv Paisii Hilendarski | BGR |  |
| 5 (674) | Sofia University | BGR | |
| 6 (708) | Institute of Information and Communication Technologies Bulgarian Academy of Sciences | BGR | |
| 7 (740) | Institute of Biophysics and Biomedical Engineering Bulgarian Academy of Sciences | BGR | |
| 8 (742) | Technical University of Sofia | BGR | |
| 8 (742) | South West University Neofit Rilski | BGR | |
| 10 (755) | Technical University of Varna | BGR | |
| 11 (761) | University Prof. Dr. Assen Zlatarov | BGR | |
| 12 (777) | University of Rousse | BGR | |
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