| Abbreviation | Definition |
|---|---|
| MAST | Micro Autonomous System Technologies |
| MATCH | Management Advice And Training Center Holland |
| MATI | Mescalero Apache Telecom Inc |
| MATTA | Malaysian Association Of Tour Travel Agents |
| MAWC | Missouri American Water Company |
| MAX | Modular Automation Xcessories |
| MB | Mario Badescu |
| MB | McKenzie Brothers |
| MB | Mercedes Benz |
| MB | Milton Bradley |
| MB | Mountain Brothers |
| MBA | Modeling By Auspig |
| MBA | Mom's Bouquets Again |
| MBAA | Massachusetts Business Aviation Association |
| MBAA | Midwest Business Administration Association |
| MBAC | Margolis Brown Adaptors Company |
| MBB | Messerschmitt-Bölkow-Blohm |
| MBBA | Massachusetts Buyers Broker Agency |
| MBBG | Markus Bach Betriebs GmbH |
| MBBL | Melbourne Brighton Bus Lines |