- MASANDURU GROUP
- MASASI DEVELOPMENT ASSOCIATION
- MASASI DISABLED ORGANIZATIONS NETWORK
- Masasi Non-governmental Organization Network
- MASASI PEOPLE LIVING WITH HIV/AIDS GROUPS NETWORK
- MASASI SPORTS AND FARMING ASSOCIATION
- MASASI YOUTH DEVELOPMENT GROUPS NETWORK
- Matemwe Control HIV/AIDS, Education and Environment (MCAEE)
- Matengo Development plans
- MATUMAINI CENTRE IRINGA