| Abbreviation | Definition |
|---|---|
| BCLU | Bibby Bros Company |
| BCLU | Bibby Bros. |
| BCMX | Bullet Concrete Materials |
| BCMX | Bullet Concrete Materials Company |
| BCNE | British Columbia Railway (Canadian National Railway) |
| BCNE | Canadian National Railway |
| BCOL | BC Rail Limited |
| BCOL | British Columbia Railway (Canadian National Railway) |
| BCPX | Brighton Corporation |
| BCRR | Boyne City Railroad |
| BCRX | Butler County Oil Refining (GE Rail Services Corporation) |
| BCRX | General Electric Railcar Services Corporation |
| BCRY | Barrie-Collingwood Railway |
| BCRY | Cando Contracting Limited - Barrie-Collingwood Railway |
| BCTX | Boise Cascade Corporation |
| BCTZ | Boise Cascade Corporation |
| BCVX | West Coast Express |
| BCWX | Union Tank Car |
| BCWX | Union Tank Car Company |
| BCYU | Bay Cities Leasing (Union Pacific Railroad) |