| Abc Rail Corporation | 719-564-0244 | Minnequa Ave | Pueblo West | CO | 81004 |
| American Drilling Service | 719-942-3568 | 9934 Hwy 50 | Howard | CO | 81233 |
| Liberty Railway Services Inc | 719-544-6867 | 598 N States Ave | Pueblo West | CO | 81007 |
| New York Air Brake | 719-593-2820 | 7356 Aspen Glen Ln | Colorado Springs | CO | 80919 |
| P & H Enterprises | 719-584-3800 | 1975 Aspen Cir | Pueblo | CO | 81006 |
| Parrish Drilling-Wayne Parrish | 719-346-8440 | 45895 County Road Y | Burlington | CO | 80807 |
| Progress Rail Service | 719-583-9749 | 600 Moffat St | Pueblo | CO | 81003 |
| Pueblo Railroad Service Co | 719-544-2411 | 2621 Lime Rd | Pueblo West | CO | 81006 |
| Railroad Technology Training Services Inc | 719-543-3521 | 319 S Union Ave | Pueblo West | CO | 81003 |
| Reliability Management Technologies Inc | 719-542-0574 | 319 S Union Ave | Pueblo West | CO | 81003 |
| Twin Peaks Drilling & Pump Service | 719-942-3251 | 210 Pinon Hills Dr | Howard | CO | 81233 |
| Unit-Trian Maintenance | 719-543-3437 | 24744 Birdsong Dr | Pueblo West | CO | 81006 |
| Wheelstar Corporation | 719-564-0404 | 2018 S Prairie Ave | Pueblo West | CO | 81005 |
| Wheelstar Corporation | 719-633-3182 | 104 S Cascade Ave | Colorado Springs | CO | 80903 |
