- Institute of Studies for the Integration of Systems (ISINNOVA), Italy (Project Coordinator)
- Austrian Energy Agency (AEA), Austria
- Association of Rhodope Municipalities (ARM), Bulgaria
- Black Sea Energy Research Centre (BSERC), Bulgaria
- Centre for Renewable Energy Sources (CRES), Greece
- Regional Development Agency of Western Macedonia (ANKO), Greece
- Regional agency for environmental protection in Emilia-Romagna Region (ARPA ER), Italy
- Italian Thermo-technical Committee (CTI), Italy
- Ekodoma, Latvia
- Riga Planning Region (RPR), Latvia
- ENTE PÚBLICO REGIONAL DE LA ENERGÍA DE CASTILLA Y LEÓN, Spain
