- Water Relief and Environmental Conservation (WRECO)
- White Dow
- WIRWANA ASSOCIATION FOR EMPOWERMENT AND DEVELOPMENTS (WAENDELEE)
- WOMEN ENVIRONMENT CONSERVATION ASSOCIATION
- Women`s Infinitive Natural Child Enrichment
- World Wide Opportunities on Organic Farms (WWOOF Tanzania)
- Yebhe Chikomesye
- YOUTH ACTION DEVELOPMENT ( YAD )
- YOUTH CRIME WATCH TANZANIA
- Youth Development Association