Bündnis Bürgerenergie e.V.
University of Zagreb – Faculty of Mechanical Engineering and Naval Architecture (UNIZAG FSB)
Frank Bold Society, z.s.
National Society of Conservationists – Friends of the Earth Hungary
WWF Poland
WWF Germany
E3G – Third Generation Environmentalism Ltd.
Agentur für Wohnungswesen und Energie (BETA)
The International Centre for Sustainable Development of Energy, Water and Environment Systems (SDEWES Centre)
WWF Adria – Serbia