| 1 (1957) | Bulgarian Academy of Sciences * | BGR |  | |
| 2 (2504) | Trakia University | BGR |  | |
| 3 (2886) | University of Rousse | BGR | | |
| 4 (3260) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | | |
| 5 (3275) | Institute of Information and Communication Technologies Bulgarian Academy of Sciences | BGR | | |
| 6 (3277) | University of Food Technologies, Plovdiv | BGR | | |
| 7 (3567) | University of Plovdiv Paisii Hilendarski | BGR | | |
| 8 (3640) | Technical University of Varna | BGR | | |
| 9 (3641) | Sofia University | BGR | | |
| 10 (3848) | Technical University of Sofia | BGR | |
