- Union of Non Governmental Organizations (UNGO)
- UPENDO DUNDA
- URBAN ENVIRONMENTAL DEVELOPMENT ASSOCIATION
- UTUNZAJI WA MAZINGIRA MBINU MBALA
- UWERA SALOON
- VOICE OF HOPE AND LIBERATION AGAINST HIV/AIDS
- WANAWAKE TUNAWEZA
- Watoto Yatima na Elimu Tanzania (WAYETA)
- Widow Women and Orphan Support
- WOMEN ALLIANCE FOR SOCIO-ECONOMIC PROSPERITY