01. Centre for Renewable Energy Sources (CRES) - Greece - COORDINATOR
02. Compagnie Industrielle d'Applications Thermiques (CIAT) - France
03. Erdwärme-Systemtechnik GmbH & Co. KG (EWS) - Germany 
04. Geothermische Vereinigung e.V (GtV) - Germany
05. Geoteam Technisches Büro für Hydrogeologie, Geothermie und Umwelt Ges.m.b.H. (GEOTEAM) - Austria
06. Escola Superior de Tecnologia de Setúbal  (ESTSetúbal)  (Portugal)
07. MENTOR S.A. - Greece
08. Centre for Research and Technology – Hellas (CERTH) / Chemical Process    Engineering Research Institute/ (CPERI) - Greece
09. THE UNIVERSITY OF ORADEA - Romania
10. UNIVERSITY OF SILESIA - Poland
11. BRGM - France