- American College – Sofia
- Agrarian University – Plovdiv
- American University – Blagoevgrad
- Burgas Free University
- Prof. Dr. Asen Zlatarov Burgas University
- Varna Free University “Chernorizets Khrabar”
- Veliko Tarnovo University “St. Cyril and Methodius”
- Higher Medical Institute – Pleven
- Higher Naval School “N. Y. Vaptsarov” – Varna
- Aviation Faculty of the National Military University “Vasil Levski” – Dolna
- Higher School of Insurance and Finance – Sofia
- Institute for Officer Training and Research Activities under the Ministry of Internal Affairs – Sofia
- Higher Construction School “Lyuben Karavelov” – Sofia
- Higher Transport School “Todor Kableshkov” – Sofia
- College of Telecommunications and Postal Services – Sofia
- Forestry University – Sofia
- Medical University – Sofia
- Higher School of Management – Varna
- International Higher Business School – Botevgrad
- University of Geology and Mines “St. Ivan Rilski” – Sofia
- New Bulgarian University – Sofia
- Plovdiv University “Paisiy Hilendarski”
- Ruse University “Angel Kynchev”
- Sofia University “St. Kliment Ohridski”
- D. A. Tsenov Economic Academy – Svishtov
- Technical University – Varna
- Technical University – Gabrovo
- Technical University – Sofia
- Thracian University – Stara Zagora
- University of Architecture, Civil Engineering and Geodesy – Sofia
- Food Technology University – Plovdiv
- Shumen University
- Southwestern University “Neofit Rilski” – Blagoevgrad