 | ALTERRA | Wageningen | Holland |
 | CAPODISTRIA RESEARCH CENTER | Capodistria | Slovenia |
 | CRI | Kumasi | Ghana |
 | ELLE | Riga | Lettonia |
 | G.R.A.I.A. | Varano Borghi (VA) | Italy |
 | HTS DEVELOPMENT | Herks | United Kingdom |
 | IDOM | Bilbao | Spain |
 | ILE | Bratislava | Slovak Republic |
 | INERA | Ouagadougou | Burkina Faso |
 | ISTITUTO OIKOS | Milano | Italy |
 | LAND RESEARCH CENTRE | East Jerusalem | Occupied Territories |
 | NRD Desertification Research Group | Sassari | Italy |
 | ODARC | Bastia | France |
 | OREADE BRECHE | La Jarrie | France |
 | Palestinian Wastewater Engineers Group | Al-Bireh | Palestine |
 | PARTICIP | Freiburg | Germany |
 | Prospect C&S | Brussels | Belgio |
 | San Giuliano Terme Municipality | S.Giuliano Terme (PI) | Italy |
 | SOGES | Torino | Italy |
 | Terre Nourriciere | Montpellier | France |
 | TERRE SOLIDALI | Milano | Italy |
 | TERRE SOLIDALI Mauritania | Nouakchott | Mauritania |
