BN
| Burlington Northern | 44 |
BNSF
| BNSF Railway | 13 |
CBQ
| Chicago Burlington & Quincy | 1 |
CBRR
| CBRR | 1 |
CN
| Canadian National Railways | 9 |
CNW
| Chicago & Northwestern | 4 |
DAIR
| D and I Railroad Company | 2 |
DMVW
| Dakota Missouri Valley and Western Railr | 2 |
FTSX
| Fairmont Tamper | 1 |
GREX
| Georgetown Rail Equipment Company | 5 |
ICE
| Iowa Chicago and Eastern | 1 |
LMIX
| Loram Maintenance of Way Inc. | 1 |
MP
| Missouri Pacific | 1 |
MSTL
| Minneapolis & St Louis | 4 |
MSWY
| Minnesota Western RR | 1 |
NP
| Northern Pacific | 2 |
RMSX
| Pandrol Jackson Incorporated | 4 |
RRVW
| Red River Valley and Western Railroad | 1 |
SERC
| SERC | 1 |
SOO
| Soo Line | 7 |
SPMW
| Southern Pacific Maintenance of Way | 2 |
UP
| Union Pacific Railroad Company | 21 |