Environmental Association “Za Zemiata” – Friends Of The Earth Bulgaria
WWF Danube-Carpathian Program Bulgaria
Energy Agency of Plovdiv (EAP)
German-Bulgarian Chamber of Industry and Commerce (AHK Bulgaria)
Sofia Energy Agency – SOFENA
Burgas Municipality
Sofia Municipality
Center for the Study of Democracy (CSD Bulgaria)
Foundation Center for Energy Efficiency EnEffect
Using maps and energy offices to build Solar Cities in Bulgaria