Institute of Mathematics and Informatics – Bulgarian Academy of Sciences


Federation of the Scientific Engineering Unions


Union of Bulgarian Mathematicians


Bulgarian National Science Fund – Ministry of Education and Science


Patent Office of the Republic of Bulgaria


Union of Scientists in Bulgaria


Union of Physicists in Bulgaria


St. Cyril and St. Methodius International Foundation


National Palace of Children


BCause Foundation


National Polytechnic Museum


Union of Inventors of Bulgaria


EFC – European Foundation Centre


MILSET – Mouvement International pour le Loisir Scientifique Et Technique

MILSET – The International Movement for Leisure Activities in Science and Technology


IFIA – International Federation of Inventors’ Associations


OFAJ – Office franco-allemand pour la Jeunesse

FGYO – Franco-German Youth Office


CIVICUS – World Alliance for Citizen Participation