- Rural Oriented Sustainable Development Organization
- Rural Socio Catalyst Organization (CHACHU)
- RURAL YOUTH DEVELOPMENT INITIATIVES AND RESEARCH INSTITUTE (RYDRI)
- Sabaya&Education Foundation
- SAIDIA WANAJAMII TANZANIA
- SAIDIA WAZEE TANZANIA
- Saint Teresa Orphans Foundation
- SAKILA HOPE FOR ELDERLY
- Sauti ya wakulima
- seedoplan