- Kamati ya Maendeleo ya Mkokotoni
- KANYIGO AIDS PREVENTION FOUNDATION
- KARAGWE DEVELOPMENT ASSOCIATION
- KARAGWE RURAL DEVELOPMENT AND ENVIRONMENTAL CONSERVATION AGENCY(KARUDECA)
- Kasenyenda Tanzania - Sustainable Development Agenda
- Kazi ni Dawa {KAniDA}
- KENGEJA ENVIRONMENTAL CONSERVATION AND COMMUNITY DEVELOPMENT
- Key of Youth Alternatives Development
- KIDIKE ENVIRONMENTAL CONSERVATION CLUB
- KIGOMA AND UJIJI NON GOVERNMENT ORGANIZATION NETWORK