| 1 (1937) | Bulgarian Academy of Sciences * | BGR | |
| 2 (2969) | Sofia University | BGR | |
| 3 (3166) | Technical University of Sofia | BGR | |
| 4 (3261) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
| 5 (3480) | Institute of Biophysics and Biomedical Engineering Bulgarian Academy of Sciences | BGR | |
| 6 (3499) | Institute of Information and Communication Technologies Bulgarian Academy of Sciences | BGR | |
| 7 (3659) | University of Plovdiv Paisii Hilendarski | BGR | |
| 8 (3696) | University of Rousse | BGR | |
| 9 (4113) | Technical University of Varna | BGR | |
| 10 (4123) | University Prof. Dr. Assen Zlatarov | BGR | |
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