| Mathematics Statistics and Computer Science | Academic & Science |
| Mathematical Structures in Computer Science | Academic & Science |
| MSC Software Corporation | Business |
| Multiple Sclerosis Certified Specialist | Business |
| Muscle Shoals City Schools | Community |
| Microsoft Cluster Server Support | Computing |
| Mass Storage Control System | Computing |
| Mobile Service Center System | Computing |
| Microsoft Cluster Service | Computing |
| Microsoft Cognitive Services | Computing |
| Microsoft Commerce Server | Computing |
| Master of Science Computer Science | Computing |
| M S in Computer Science | Computing |
| Masters of Science in Computer Science | Computing |
| Master of Science In Computer Science | Educational Degree |
| Multidimensional Self Concept Scale | General |
| Maine Shared Collections Strategy | General |
| Mazda Stabilized Combustion System | General |
| Meter Solution Cloud Service | General |
| Maritime Service Compliance System | General |
| Message Server Communication Suite | General |
| Matrix Settlement Clearance Services | General |
| Module Switcher Chip Select | General |
| Mess Attendant Specialist Senior Chief Petty Officer | Governmental |
| Master of Science in Clinical Science | Medical |
| Multi- Service Communications System | Military and Defence |
| Multi- Spectral Camouflage System | Military and Defence |
| Senior Chief Mess Specialist | Military and Defence |
| Midwest Sprint Car Series | Sports |
