Sofia University "St Kliment Ohridski" (Sofia)

New Bulgarian University (Sofia)

University of Plovdiv Paisii Hilendarski, Institute for Research and Training of Doctoral Students (Sofia)

Second English Language High School “Thomas Jefferson” (Sofia)

University of Structural Engineering and Architecture "Lyuben Karavelov" (Sofia)

Sofiyska Matematicheska Gimnasiya “Paisiy Hilendarski” (Sofia)

“Hristo Botev – 1869” Center (Kalofer)

College of Art of the Zhejiang University of Technology (Zhejiang)

L.N. Gumilyov Eurasian National University (Nur-Sultan)

Z. Aldamzhar Kostanay Social and Technical University (Kostanay)

Warsaw Academy of Art (Warsaw)

National University of Theatre and Film "I.L. Caragiale" (Bucharest)

University of Fine Arts and Design (Cluj-Napoca)

Saint Petersburg State University (St Petersburg)

Russian Presidential Academy of National Economy and Public Administration (Moscow)

ITMO University (St Petersburg)

A.S. Pushkin Leningrad State University (St Petersburg)

Нigher School of Folk Arts (Academy) (St Petersburg)

F.A. Modorov Mstera Institute of Lacquer Miniature Painting (Mstera)

Institute of Traditional Applied Art (Moscow)

Peter's Academy of Arts and Sciences (St Petersburg)

Saint Petersburg Institute of Art and Restoration (St Petersburg)

International School of Design (St Petersburg)

Comenius University (Bratislava)

University of Žilina (Žilina)

University of Economics (Bratislava)

National Aviation University (Kyiv)

National Academy of Internal Affairs (Kyiv)