| Abbreviation | Definition |
|---|---|
| BMDZ | Minnesota Dakota and Western Railway Company |
| BMDZ | Minnesota, Dakota and Western Railway |
| BMEX | Brookville Equipment Corporation |
| BMH | Beaufort and Morehead Railroad |
| BMH | Beaufort and Morehead Railroad Co |
| BMIZ | Burlington Motor Carriers |
| BML | Belfast and Moosehead Lake Railroad |
| BMLU | King Ocean Services |
| BMOU | Beacon Intermodal Leasing |
| BMRC | Bangalore Metro Rail Corporation |
| BMRCL | Bengaluru Metro Rail Corporation Ltd |
| BMRG | Blue Mountain and Reading Railroad |
| BMRTC | Bangalore Metro Rail Transport Corporation |
| BMS | Berlin Mills Railway (St. Lawrence and Atlantic Railroad) |
| BMS | Berlin Mills Railway Incorporated |
| BMSX | Bemis |
| BMSX | Bemis Company Incorporated |
| BMT | Brooklyn Manhattan Transit |
| BMT | BrooklynManhattan Transit |
| BMT | Brooklyn–Manhattan Transit |