| P1 | Istituto Agronomico Mediterraneo di Bari – Centre International de Hautes Etudes Agronomiques Méditerranéennes (ISAGME) | ITALY |
| P3 | Alexandria University (UALEX.FA.SWS) | EGYPT |
| P5 | National Council for Scientific Research (NCSRLB.RS.SS) | LEBANON |
| P6 | Ministry for Rural Affairs and the Environment (MAFMT.PH.ARDC.C) | MALTA |
| P7 | Ministere de l’Agriculture (MATN.DS) | TUNISIA |
| P8 | Ministry of Agriculture (MOAPS.SI) | PALESTINE |
| P9 | Ministry of Agriculture and Agrarian Reform (MAAR.SD.LSSG) | SYRIA |
| P10 | Institut Agronomique et Veterinarie Hassan II (IAVHMA.SS) | MOROCCO |
| P11 | University of Çukurova (UCUK.FA.DSS) | TURKEY |
| P12 | Ministrere de l’Agriculture (MAGRIDZ.FRV) | ALGERIA |
| P13 | The National Authority for Remote Sensing and Space Sciences (NARSSS.A.SMD) | EGYPT |
| P14 | University of Jordan (UJORD.AGRI) | JORDAN |
| P16 | University of Malta (UMT.IA) | MALTA |
| P17 | Institut National Agronomique de Tunisie (INAT.CGRE) | TUNISIA |
| P18 | Land Research Center (LRCPS) | PALESTINE |
| P19 | Tishreen University (UTISH.SSSR) | SYRIA |
| P20 | Ministere de l’Agriculture du developpement Rural et Eaux et Forets (MIAMOR.AF) | MOROCCO |
| P21 | Ministry of Agriculture and Rural Affairs (GDRS.RPC.SWR) (the former General Directorate of Rural Services) | TURKEY |
| P23 | Halazen Development Association (HALAZEN) | EGYPT |
| P24 | The Jordanian Society for Desertification Control & Badia Development (JSDCBD) | JORDAN |
| P25 | Agricultural Cooperative Association (AGRICA) | LEBANON |
| P26 | Farmers central Co-operative Society, Ltd (FCCS) | MALTA |
| P27 | Parcelle El Oueslati (OUESLATI) | TUNISIA |
| P28 | The General Union of Peasants (GUP.AAO) | SYRIA |
| P29 | Ecole Nationale d’Agriculture de Meknes (ENAM.SS) | MOROCCO |
| P30 | Tamount Association (AT.MOROCCO) | MOROCCO |
| P31 | Adana Farmers Association (ADFAS) | TURKEY |
| P32 | Institut National de la Recherche Agronomique (INRA.USI) | FRANCE |
| P33 | Consejo Superior de Investigaciones Cientificas (CSIC.IPE) | SPAIN |
| P34 | Università degli Studi di Sassari (USAS:NRD) | ITALY |
| P35 | Commission of the European Communities (COMC.EI:SWW) | ITALY |
| P36 | Arab Center for the Studies of Arid Zones and Dry Lands – League of Arab States (ACSAD) | SYRIA |
