ATEX
| Asplundh Tree Expert Co Railroad Division | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BN
| Burlington Northern | 47 |
BNSF
| BNSF Railway | 31 |
BNX
| BNX | 3 |
CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 1 |
GN
| Great Northern | 1 |
GREX
| Georgetown Rail Equipment Company | 11 |
HZGX
| Herzog Contracting Corporation | 2 |
LMIX
| Loram Maintenance of Way Inc. | 3 |
MILW
| Milwaukee Road | 2 |
SOO
| Soo Line | 4 |
SPMW
| Southern Pacific Maintenance of Way | 3 |
SRBX
| SRBX | 1 |