- Sustainable for Environmental & Climate Change Association (SECCA)
- Sustainable Investments and Development Initiatives
- Sustainable Invetsments and Development Iniatiatives (SIDI)
- Sustainable Rural Agriculture
- SUSTANABLE WATCH ON MARGINAL COMMUNITIES
- T
- TAASISI YA KUPAMBANA NA UKIMWI KITANGARI
- Taasisi ya Kuzuia Mmonyoko wa Maadili Tanzania
- TABASAMU HABITAT PROJECT
- TABORA PARALEGAL CENTRE