| 1 (1520) | Bulgarian Academy of Sciences * | BGR |  |
| 2 (2017) | Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences | BGR | |
| 3 (2030) | University of Rousse | BGR |  |
| 4 (2390) | Georgi Nadjakov Institute of Solid State Physic Bulgarian Academy of Sciences | BGR | |
| 5 (2464) | Sofia University | BGR | |
| 6 (2815) | Institute of General and Inorganic Chemistry Bulgarian Academy of Sciences | BGR | |
| 7 (2964) | Academician Emil Djakov Institute of Electronics Bulgarian Academy of Sciences | BGR | |
| 8 (3145) | Technical University of Sofia | BGR | |
| 9 (3166) | University of Plovdiv Paisii Hilendarski | BGR | |
| 10 (3202) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
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