| MAMid America Agriproducts-haxtun | Haxtun Area | — | ◇ UNVERIFIED |
| MCMiles Const CO | Buena Vista | — | ◇ UNVERIFIED |
| MMMinute Man Press | Wheat Ridge | — | ◇ UNVERIFIED |
| MCMontrose City | Montrose | — | ◇ UNVERIFIED |
| MCMontrose County | Montrose | — | ◇ UNVERIFIED |
| MCMontrose County | Montrose | — | ◇ UNVERIFIED |
| MCMorgan Cnty Highway Dept | Fort Morgan | — | ◇ UNVERIFIED |
| MSMountain States Paving | Centennial Area | — | ◇ UNVERIFIED |
| NINielsons INC | Durango | — | ◇ UNVERIFIED |
| NINielsons INC | Montezuma County | — | ◇ UNVERIFIED |
| NPNorth Park Advantage - North Park Plant | Walden | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group - Cugnini Pit | Durango | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group Dba B&b Excavating | Eagle | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group Dba Four Conrners | Durango 2.5 Mi Se of | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group Dba United Companies | Norwood | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group Dba United CO of Mesa | Rifle | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group Dba United CO of Mesa | Montrose | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group- Tri County Pit | Hotchkiss | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group - Wattenberg West | Brighton, 2.0 Mi Nw of | — | ◇ UNVERIFIED |
| PPPremier Paving INC. Hb: 690 W 62nd | Denver Area | — | ◇ UNVERIFIED |
| PPProgressive Paving CO INC | Security | — | ◇ UNVERIFIED |
| PAPueblo Asphalt Plant | Pueblo | — | ◇ UNVERIFIED |
| RER E Monks Const | Colorado Springs | — | ◇ UNVERIFIED |
| RERentech Energy Technology Center, LLC | Commerce City | — | ◇ UNVERIFIED |
| RORex Oil | Denver | — | ◇ UNVERIFIED |
| RORex Oil CO INC | Lyons | — | ◇ UNVERIFIED |
| RGRio Grande Cnty | Del Norte | — | ◇ UNVERIFIED |
| RGRio Grande County Road Dept. | Del Norte | — | ◇ UNVERIFIED |
| RMRocky Mountain Materials & Asphalt INC | Colorado Springs | — | ◇ UNVERIFIED |
| RMRocky Mountain Materials & Asphalt INC | Colorado Springs | — | ◇ UNVERIFIED |
| RMRocky Mtn Materials & Asphalt Portable | Colorado Springs | — | ◇ UNVERIFIED |
| RCRoutt Cnty Bd O Comm | Steamboat Spgs | — | ◇ UNVERIFIED |
| RERyco Equipment Leasing R L L P | Colorado City | — | ◇ UNVERIFIED |
| SISaddlehorn Interconnect 16-16-1222-12 | Hudson | — | ◇ UNVERIFIED |
| SCSaguache Cnty Road & Bridge Dept | Del Norte | — | ◇ UNVERIFIED |
| SOSales Oil CO | Denver | — | ◇ UNVERIFIED |
| SCSand Creek Energy LLC | Commerce City | — | ◇ UNVERIFIED |
| SCSchmidt Const CO | Colorado Springs | — | ◇ UNVERIFIED |
| SCSchmidt Const CO | Castle Rock | — | ◇ UNVERIFIED |
| STSchmidt Tiago Const CO | Arvada | — | ◇ UNVERIFIED |
| SCSimon Contractors - Portable Plant #1 | Cheyenne | — | ◇ UNVERIFIED |
| SUSkanska USA - Hma Plant | Cortez | — | ◇ UNVERIFIED |
| SPStaker Paving and Construction | Mancos | — | ◇ UNVERIFIED |
| SEStroehecker Excavation | Durango | — | ◇ UNVERIFIED |
| TJTony J Beltramo & Sons INC | Pueblo | — | ◇ UNVERIFIED |
| UAUnited Asphalts - 4306 E 60th Ave | Commerce City | — | ◇ UNVERIFIED |
| UCUnited Companies - United Companies - | Grand Junction | — | ◇ UNVERIFIED |
| URUnocal Retort | Unk | — | ◇ UNVERIFIED |
| VIVenta INC | Broomfield | — | ◇ UNVERIFIED |
| WSWalsenburg Sand & Gravel CO | Walsenburg | — | ◇ UNVERIFIED |
