| 1 (551) | Bulgarian Academy of Sciences * | BGR |  | |
| 2 (588) | Sofia University | BGR |  | |
| 3 (618) | University of Chemical Technology and Metallurgy | BGR | | |
| 4 (631) | Technical University of Sofia | BGR | | |
| 5 (642) | Institute of Mechanics Bulgarian Academy of Sciences | BGR | | |
| 6 (651) | University of Food Technologies, Plovdiv | BGR | | |
| 7 (673) | Technical University of Varna | BGR | | |
| 8 (693) | University of Rousse | BGR | | |
| 9 (708) | Academician Emil Djakov Institute of Electronics Bulgarian Academy of Sciences | BGR | | |
| 10 (725) | University of Plovdiv Paisii Hilendarski | BGR | |
