| Rank | Abbreviation | Meaning |
|---|
| ***** | M&T | Myringotomy and Tubes
| |
| *** | M&T | Manufacturing and Test
| |
| *** | M&T | Manufacturers and Traders Trust Company
| |
| * | M&T | Maintenance & Team
| |
| * | M&T | Management and Technology
| |
| * | M&T | Manning and Training
| |
| * | M&T | Movements and Transport
| |
| * | M&T | Monitor and Test
| |
| * | M&T | Mortise & Tenon
| |
| * | M&T | Maintenance and Technology
| |
| * | M&T | Movement and Transportation
| |
| * | M&T | Monsters and Things
| |
| * | M&T | Media and Technology
| |
| * | M&T | Maintenance and Transportation
| |
| * | M&T | Mission and Threat
| |
| * | M&T | Miles & Thompson
| |
| * | M&T | Measurement and Testing (various locations)
| |
| * | M&T | Michigan and Trumbull
| |
| * | M&T | Methods and Tooling
| |
| * | M&T | Moriyama & Teshima
| |
| * | M&T | Mother and Toddler
| |
| * | M&T | Monitoring & Targeting
| |
| * | M&T | Mentoring & Tutoring
| |