Steinbeis-Innovationszentrum energie + Housing Initiative for Eastern Europe e.V. (IWO) Alliance of Lithuanian Consumer Organizations (ALCO) Municipality of Athens (MoA) Independent Institute for Environmental Issues UfU e.V. Berlin Respekt für Griechenland e.V. Slovenian National Building and Civil Engineering Institute (ZAG) Institute of Innovation and Responsible Development (innowo) ITB Leibniz Institute of Ecological Urban and Regional Development (IOER)