- SAVE OUR ENVIRONMENT TANZANIA
- save young mothers
- Service to widows, orphans and the little ones organization
- SHANGWE COUNSELING CENTRE
- SHIRIKA LA MAENDELEO JUHUDI
- SHIRIKISHO LA VYAMA VYA WATU WENYE ULEMAVU MWANZA
- SIMBA MASAI THEATRE GROUP
- SINGIDA RURAL PEOPLE LIVING WITH HIV/AIDS(SIRUPHA)
- Small World Initiatives For Women Security and Children Orphanage (SWIWSCO
- SMS Verification