WWF Adria – Serbia
WWF Bulgaria
Eco-team
Association Junior Achievement Macedonia
Agora Energiewende, Smart Energy for Europe Platform (SEFEP) gGmbH
Deutsche Umwelthilfe (DUH) e.V.
Environmental Management and Law Association (EMLA)
Client Earth
Environmental Association “Za Zemiata” – Friends Of The Earth Bulgaria
WWF Danube-Carpathian Program Bulgaria