| Abbreviation | Definition |
|---|---|
| BHCRR | Black Hills Central RailRoad |
| BHCU | Bridgehead Container Service |
| BHIU | Baker Hughes |
| BHM | Birmingham New Street Station, Birmingham, UK |
| BHP | BHP Nevada Railroad |
| BHP | BHP Nevada Railroad Company |
| BHRRT | Box Hill Ringwood Rail Trail |
| BHRRT | Box Hill to Ringwood Rail Trail |
| BHTX | Bernhart Crane and Rigging |
| BHWY | Boot Hill and Western Railway |
| BIAX | Ocala Recycling |
| BIAX | Ocala Recycling Recycling |
| BICX | Beker Industries Corporation |
| BIDU | Universal Bulk-Handling (Bertschi) |
| BIDU | Universal Bulk-Handling Limited |
| BIGX | Air Liquide America Corporation |
| BIGX | Big Three Industries (Air Liquide America Corporation) |
| BIRR | Bellingham International Railroad |
| BISX | Brandenburg Industrial Service |
| BISX | Brandenburg Industrial Service Co |