ReRURAL – ländliche Regionen aufwerten Regional Development Agency Green Karst, Ltd. City of Đurđevac LIR Evolution RenovAID – klimaneutrale Gebäuderenovierung Institute for Development Policy (INDEP) Buildings for the Future (B4F) TERRA Millennium III Foundation Municipality of Cluj-Napoca (City hall) Babes-Bolyai University, Faculty of Environmental Sciences and Engineering, Cluj-Napoca, Romania