- Social Awareness and Live Support (SALISU)
- Social Mainstreaming for Gender Equality Organization
- Society for Women and AIDS in Africa
- Songambele Initiative Organisation
- Songea Women and children care organization
- Southern Corridor Development Association (SOCODEA)
- ST BLESSING DAYCARE
- St.Justin Centre for Children with Disabilities
- STOP TEENAGE PREGNANCIES IN TANZANIA FOUNDATION
- sunrise development society