| The Rockefeller Foundation | Donors | East Africa | |
| The United Nations Office For Disaster Risk Reduction (UNISDR) | Regional Organization | | |
| The World Bank | Non-governmental organization/Development organization | | Climate-Smart Technologies and Practices, Low Emissions Development, Climate Services and Safety Nets |
| The World Vegetable Center (WorldVeg) | International Agricultural Research | | Climate-Smart Technologies and Practices |
| Think Tank Gulbenkian | Non-governmental organization/Development organization | | |
| Tibetan Plateau Research Institute (ITPCAS) | Academic Institution | | Low Emissions Development |
| Tree Aid | Non-governmental organization/Development organization | West Africa | Climate-Smart Technologies and Practices, Low Emissions Development |
| Tropical Agricultural Research and Higher Education Center | | | |
| Tropical Pesticides Research Institute (TPRI) | National agricultural research and extension services | East Africa | Climate-Smart Technologies and Practices |
| U.S. Agency International Development (USAID) | Government office/department | | Climate Services and Safety Nets |
| U.S. Department of Agriculture (USDA) | Government office/department | | Climate-Smart Technologies and Practices |
| U.U.Uspanov Kazakh Research Institute of Soil Science and Agrichemistry | National agricultural research and extension services | | Climate-Smart Technologies and Practices |
| Uganda Meteorological Department (UMD) | Government office/department | East Africa | Climate-Smart Technologies and Practices, Climate Services and Safety Nets |
| UNEP World Conservation Monitoring Centre (UNEP WCMC) | Non-governmental organization/Development organization | | |
| UNESCO-IHE Institute for Water Education (UNESCO-IHE) | Academic Institution | | Climate-Smart Technologies and Practices |
| Unga Farm Care | Private Research Institution | East Africa | |
| Union de Cooperativas Agropecuarios San Ramon (UCA) | End users | Latin America | Climate-Smart Technologies and Practices |
| Unique Forestry and Land Use (UNIQUE) | Advanced Research Institution | | Low Emissions Development |
| United Nations (UN) | Other | | |
| United Nations Development Programme (UNDP) | Donors | | Climate-Smart Technologies and Practices, Climate Services and Safety Nets |
| United Nations Environment Programme (UNEP) | Non-governmental organization/Development organization | East Africa | Climate-Smart Technologies and Practices, Low Emissions Development |
| United Nations Framework Convention on Climate Change (UNFCCC) | Government office/department | | |
| United Nations Platform for Space-based Information for Disaster Management and Emergency Response (UN-SPIDER) | Other | | Climate Services and Safety Nets |
| United Nations University West Africa (UNU) | Academic Institution | | |
| Universidad Autonoma Nacional de Nicaragua, Leon (UNAN-Leon) | Academic Institution | Latin America | Climate-Smart Technologies and Practices |
