| Norwegian Institute for International Affairs (NUPI) | Advanced Research Institution | | |
| Norwegian University of Science and Technology (NTNU) | Academic Institution | | |
| NSW Trade & Investment | Advanced Research Institution | | Developpement d'émissions sobres en carbone |
| Office du Niger (ON) | Non-governmental organization/Development organization | Afrique de l'Ouest | Services climatiques et Filets sociaux |
| Office of Livestock & Pasture (OEP) | National agricultural research and extension services | | |
| Oficina Nacional de Semillas (ONS) | Government office/department | Amérique latine | Technologies et pratiques de l'AIC |
| Oregon State University (OSU) | Academic Institution | | Technologies et pratiques de l'AIC |
| Organization of Economic Cooperation and Development (OECD) | Non-governmental organization/Development organization | | |
| Orissa University of Agriculture & Technology | Academic Institution | Asie du Sud | |
| Oromia Insurance Company | Donors | Afrique de l'Est | Services climatiques et Filets sociaux |
| Oromiya Credit and Savings Share Company (OCSSC) | Other | Afrique de l'Est | |
| Oromiya Insurance Company (OIC) | Other | Afrique de l'Est | Services climatiques et Filets sociaux |
| Oromiya Pastoral Area Development Commission (OPADC) | Government office/department | Afrique de l'Est | |
| Oxfam Great Britain | Non-governmental organization/Development organization | | |
| Oxfam Novib | Non-governmental organization/Development organization | | Technologies et pratiques de l'AIC |
| Oxfam, Horn of Africa Regional Office | Non-governmental organization/Development organization | Afrique de l'Est | |
| Pakistan Agricultural Research Coucnil (PARC) | National agricultural research and extension services | Asie du Sud | Technologies et pratiques de l'AIC, Services climatiques et Filets sociaux |
| Palli Karma-Sahayak Foundation (PKSF) | Non-governmental organization/Development organization | Asie du Sud | Services climatiques et Filets sociaux |
| Pamoja Media | Other | Afrique de l'Est | |
| Panafrican Farmers' Organization | | | |
| Panos Eastern Africa | Regional Organization | Afrique de l'Est | |
| Panos South Asia | Regional Organization | Asie du Sud | |
| Parivartan | Non-governmental organization/Development organization | Asie du Sud | Services climatiques et Filets sociaux |
| Pathikrit | Non-governmental organization/Development organization | Asie du Sud | |
| Pennsylvania State University | Academic Institution | | Services climatiques et Filets sociaux |
