- ENVIRONMENTAL AND HEALTHCARE ORGANIZATION
- ENVIRONMENTAL CONSERVATION, WATER SUPPLY AND AIDS CONTROL ORGANIZATION (EWACO)
- ENYOITO WOMEN GROUP
- Equal Opportunity For All Trust Fund - (EOTF)
- Esupati Group
- FAIDAKA WOTE NANYUMBU
- FAIDIKA WOTE PAMOJA
- Fancy Foundation Limited (FAFOLI)
- FIGHTING HIV/AIDS IN TANZANIA (FIHATA)
- Focus Tanzania