INZEB
Network of Sustainable Greek Islands (DAFNI)
National Technical University of Athens (NTUA)
Institute of Greek Tourism Confederation (INSETE)
Municipality of Kavala
German-Hellenic Chamber of Industry and Commerce (AHK Greece)
Municipality of Athens (MoA)
Deutsch-Griechische Industrie- und Handelskammer (AHK Griechenland)
Regional association of local government of Western Macedonia
WWF Greece