- Green Leaf Organization
- HAMOUP HOTEL AND CATERING INSTITUTE
- HIFADHI YA MAZINGIRA NA UTALII RUNGWE (HIMARU) (Rungwe Environmental Conservation and Tourism
- Honeyguide
- Hope Development Volunteers
- Hope Empowerment and Development Organization
- IMBATA
- Initiative for Community Empowernment
- ISANGE IWACU
- Jumuiya ya Vijana Waliyosoma Elimu Mbadala Fani ya Utalii