- SOUTHERN HIGHLAND SENILITY ORGNISATION
- SUKUMALAND DESTINATIONS CULTURAL TOURISM
- Supporting Rural Youths' Development(SRYD)
- Sustainable Environment and Economic Development Organization
- Sustainable for Environmental & Climate Change Association (SECCA)
- Sustainable Investments and Development Initiatives
- Taasisi ya Kuzuia Mmonyoko wa Maadili Tanzania
- Tanzania Orphans and Children with HIV/AIDS (TOCHA+)
- Tanzania Porters Organization
- Tanzania Sports and Culture Consultant Organization