- MATOMBO NEW VISION DEVELOPMENT ORGANIZATION
- Matumaini Environment Trust
- MiDA Tanzania
- MILELE FOREST AND WILDLIFE CONSERVATION ASSOCIATION (MFAWICA)
- Mkwawa Adventure and Safaris
- mnara
- Morogoro Environmental Conservation Organization (MOECO)
- MPAKANI ENVIRONMENTAL CONTROL
- Mtwara Development Forum
- MTWARA FISHERIES ASSOCIATION