| 1 (1721) | Bulgarian Academy of Sciences * | BGR |  | |
| 2 (2424) | Institute of Biophysics and Biomedical Engineering Bulgarian Academy of Sciences | BGR | | |
| 3 (2833) | Medical University - Plovdiv | BGR |  | |
| 4 (3965) | University of Plovdiv Paisii Hilendarski | BGR | | |
| 5 (4211) | Sofia University | BGR | | |
| 6 (4396) | University of Forestry Sofia | BGR | | |
| 7 (4410) | Institute of Biodiversity and Ecosystems Research Bulgarian Academy of Sciences | BGR | | |
| 8 (4423) | Technical University of Sofia | BGR | | |
| 9 (4684) | University Prof. Dr. Assen Zlatarov | BGR | |
