- Saint Teresa Orphans Foundation
- SAINT.RAYMOND UNIVERSAL INSTITUTE (RUI)
- Sakale Development Foundation
- SAKILA HOPE FOR ELDERLY
- Samaritan Volunteer Organization
- SANTE GLOBALE DEVELOPMENT INTERGREE TANZANIA
- Sanu English Pre & Primary School
- SAUTI YA SIMBA FILMS
- Sauti ya wakulima
- SAVE CHILDREN OF TANZANIA [SACHITA]