Intergovernmental organizations (non-UN)
- African Development Bank (AfDB)
- Arab Centre for the Study of Arid zones and Dry Lands (ACSAD)
- Arab Federation for Technical Education (AFTE)
- Arab League for Education, Culture and Science Organization (ALECSO)
- Asian Development Bank (ADB)
- Cambodia National Mekong Committee (CNMC)
- Centre d’Activités Régionales Environnement et développement en Méditerrané (Plan Bleu)
- Centre Régional d'Agro-Hydro-Météorologie (AGRHYMET)
- Comité Permanent Inter-Etats de Lutte Contre la Sécheresse dans le Sahel (CILSS)
- Comité Regional de Recursos Hidráulicos (CRRH)
- Communauté Economique des pays des Grands Lacs (CEPGL)
- Council of Europe
- Danube Commission
- European Commission
- Global Environment Facility (GEF)
- Inter-American Development Bank (IDB)
- Intergovernmental Authority on Development (IGAD)
- International Centre for Integrated Mountain Development (ICIMOD)
- International Commission for the Hydrology of the Rhine Basin (CHR-KHR)
- International Hydrographic Organization (IHO)
- Islamic Educational, Scientific and Cultural Organization (ISESCO)
- Islamic Development Bank (IDB)
- Lake Chad Basin Commission (LCBC)
- League of Arab States (LAS)
- Nile Basin Initiative (NBI)
- Observatoire du Sahara et du Sahel (OSS)
- Organization for Economic Cooperation and Development (OECD)
- Organisation pour la mise en valeur du Fleuve Sénégal (OMVS)
- The Niger Basin Authority (NBA)
- Southern African Development Community (SADC)
- Board of Quality standards (BQS)
- intergovernmental organization (EDU)