| Master Of Applied Mathematical Sciences | Academic & Science |
| Multispectral Atmospheric Mapping Sensor | Academic & Science |
| Massachusetts Academy of Math and Science | Academic & Science |
| Modern Approaches on Material Science | Academic & Science |
| Meta Access Management System | Business |
| Media Asset Management System | Business |
| Mobile Air Movement Service | Business |
| Master Agency Media Services | Community |
| Mt Ararat Middle School | Community |
| Medford Area Middle School | Community |
| Merrick Avenue Middle School | Community |
| Max Abbott Middle School | Community |
| Matawan Aberdeen Middle School | Community |
| Mt Airy Middle School | Community |
| Maple Avenue Middle School | Community |
| Meadville Area Middle School | Community |
| Mt Angel Middle School | Community |
| Mount Airy Middle School | Community |
| Microgravity Acceleration Measurement System | General |
| Microbalance Array Mass Spectrometry | General |
| Millbrae Alarm Monitoring System | General |
| Multi Axis Muzzle Stability | General |
| Mesh Adjustable Molecule Sieves | General |
| Mobile Air Movements Section | General |
| Maintenance Assist Modules Suggest | General |
| Micro Array for Mass Spectrometry | General |
| Military Airspace Management System | Governmental |
| Maintenance Activity Management System | Governmental |
| Mamsmilitary Airspace Management System | Governmental |
| Medical Archives And Manuscripts Survey | Medical |
| Master of Arts in Medical Sciences | Medical |
| Master of Associated Medical Sciences | Medical |
| Masters of Associated Medical Sciences | Medical |
