Vocational High School “Stefan Karadja”, Elhovo

Kindergarden ,,Radost”, Plovdiv, Bulgaria

PHST “Alexander Paskalev”, Haskovo

Kindergarten “Snow White” – Plovdiv

Secondary School 96 “Leo Tolstoy”, Sofia

PGRTO, Pleven

Primary School “St. St. Cyril and Methodius”, St. Lovech

Language High School “Bertolt Brecht”, Pazarzhik

Primary School “Dr. Peter Beron”, Birkova Village

Science and Mathematics Secondary School “Yane Sandanski” – Gotse Delchev, Bulgaria

Secondary School “Vasil Levski” – Manole, Bulgaria

Primary school “Hristo Botev” , Asenovgrad

Secondary school “St.st.Cyril and Methodius”, Yakoruda, Bulgaria

National High School of Mathematics and Science “Academician Lubomir Chakalov” – Sofia, Bulgaria

“Rakovski” High School of Trade, Varna

4 Secondary school “Dimcho Debelyanov”, Blagoevgrad

Science and Math High School “Akademik Ivan Gyuzelev” – Gabrovo, Bulgaria

Primary School “Hristo Smirnenski”, Ruse

Elementary school “Otets Paisiy” – Simeonovgrad, Bulgaria

Primary school “Otets Paisiy” – Ruse, Bulgaria

74 Secondary school “Gotse Delchev” – Sofia, Bulgaria

Kindergarden “Alen Mak” – Harmanli, Bulgaria

Professional High School of Food Technologies and Tourism – Yambol, Bulgaria

BSU “Doktor Petar Beron” – Praga, Czech Republic

“Vasil Levski” Primary School 156 – Kremikovtsi, Bulgaria

“St. St. Cyril and Methodius” Secondary School – Karnobat

“Aleko Konstantinov” High School of Tourism – Pleven, Bulgaria