BNSF
| BNSF Railway | 4 |
CINX
| CINX | 1 |
EPIX
| EPIC | 3 |
FEC
| Florida East Coast | 1 |
GIMX
| General American Marks Company | 4 |
HESX
| Heritage Environmental Services | 3 |
MHFX
| MHF Logistical Solutions Incorporated | 1 |
TTAX
| TTX Company - Spine Cars | 68 |
TTRX
| TTX Company-Spine Cars | 44 |