| Abbreviation | Definition |
|---|---|
| MBU | Mountain Bikes, Unlimited |
| MBWT | Malolo Blue Water Tackle |
| MC | M Care |
| MC | Medical Corp |
| MC | Merciless Creations |
| MC | Mitsubishi Corporation |
| MC | Mystic Crystals |
| MCA | Mangement Corporation Of America |
| MCA | Ministry of Company Affairs |
| MCA | Morris Cohen Associates |
| MCA | Music Company Ascap |
| MCB | Marine Corporation Base |
| MCBC | Martin City Brewing Company |
| MCBC | MODERN CLASSIC bicycle COMPANY |
| MCBC | Molson Coors Brewing Company |
| MCC | Marble and Ceramic Corporation |
| MCC | Master Control Center |
| MCC | Medley Capital Corporation |
| MCC | Millennium Challenge Corporation |
| MCC | Milne Computer Center |