| Benchmark Industrial Services | Kiewit Mining Group |
| Blanton & Associates Inc | Komatsu Mining Group |
| BOSS Crane & Rigging | Luminant |
| Buffalo Industrial Supply Inc | North American Coal - Sabine Mine |
| Certified Laboratories | North American Mining Company |
| Engineering Resources LLC | Pickett Industries |
| HDR | Rimpull Corporation |
| HOLT CAT | Russell & Sons |
| HYTORC | Waukesha Pearce Industries Inc. |
| Industrial Lubricant Company | Whitmore |