“Luben Karavelov’ Civil Engineering Higher School — Sofia

Higher School of Transport in Sofia

Rakovski Defence and Staff College

Higher College of Telecomunications and posts

International College — Albena

Agricollege — Plovdiv

European College of Economics and Management

Trakia University of Stara Zagora,Bulgaria

University of National and World Economy

Medical University — Pleven

National Sport Academy of Sofia

National Academy of Theatre and Film Arts “Kristyo Sarafov”

National Academy of Arts — Sofia

Technical University of Varna

University of Chemical Technology and Metallurgy — Sofia

University of Mining and Geology “St. Ivan Rilski”

Tsenov Academy of Economics —Svishtov

Kathalicke Universiteit Brussel

Katholieke Universiteit Leuven

Transnational Universiteit Limburg