In July 2020 Edno School was accepted as a member of two associations.

Optima is a Bulgarian association for quality language services, which has been operating since 2000. The association works closely with the European Association for Quality Language Services EAQUALS. After a complete inspection and evaluation of the work of their members in terms of customer service, teaching, database, administrative and academic management, Optima successfully introduces unified European standards in the field of foreign language learning in Bulgaria.

BALC or the Association of Language Centers in Bulgaria is looking for an answer to the challenges of all language centers in the country. The subject of activity of the Association is support, protection and promotion of the rights and interests of language school, examination centers and other educational institutions outside the field of school, preschool and vocational education, coordination and joint work between members to solve problems at the start of their economic activity in the field of foreign language teaching.