National Trust EcoFund (NTEF)
WWF Bulgaria
Riga Technical University (RTU IESE)
Energy Conservation Foundation (ECF)
Deutsche Umwelthilfe (DUH) e.V.
Client Earth
Environmental Association “Za Zemiata” – Friends Of The Earth Bulgaria
Environmental Management and Law Association (EMLA)
WWF World Wide Fund for Nature Hungary Foundation
Applied Research Institute for Prospective Technologies