North-West Croatia Regional Energy Agency (REGEA)
The Romanian Network of Energy Cities / OER
PNEC – Association of Municipalities Polish Network “Energie Cités”
adelphi research gGmbH
Ecologic Institute gGmbH
Foundation Center for Energy Efficiency EnEffect
Buildings Performance Institute Europe ASBL (BPIE)
Energy Cities Romania/ OER
Green Liberty
WiseEuropa – Foundation Warsaw Institute for Economic and European Studies