- University of chemical technology and metallurgy, Sofia
- Burgas “Prof. Dr. Asen Zlatarov” University
- The University of Architecture, Civil Engineering and Geodesy (UACEG), Sofia
- Space and solar–terrestrial research Institute – BAS
- University of Rousse “Angel Kanchev”
- Techceramic-M Ltd., Mezdra city
- Samel Pls., Samokov city
- Nomat Ltd., city of Bourgas
- NIKDIM Ltd., Kazanlak city
- Petrurgia Ltd., Plachkovski city
- Promstroyproject Ltd., Sofia
- Polytrade Ltd., Kazanlak city
- Alex – Eugeni Kremenliev Ltd., Sandanski