| WKWes Kan Const | Westminster Area | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern INC | Denver | — | ◇ UNVERIFIED |
| WSWestern Slope Refining CO | Fruita | — | ◇ UNVERIFIED |
| B6Brannan 62nd Plant | Denver | 1–19 | ◐ LIKELY ACTIVE |
| BIBrannan I-76 | Commerce City | 20–99 | ◐ LIKELY ACTIVE |
| BLBrannan Lipan | Denver | 20–99 | ◐ LIKELY ACTIVE |
| DPD-A Pakaging LLC | Henderson | 20–99 | ◐ LIKELY ACTIVE |
| FHFreeman Holdings of Colorado LLC | Pueblo | — | ◐ LIKELY ACTIVE |
| GGGolden Gate S.E.T. Petroleum Partners of Nevada LLC-Colorado | Fruita | 1–19 | ◐ LIKELY ACTIVE |
| GGunnison | Gunnison | 20–99 | ◐ LIKELY ACTIVE |
| HHayden | Hayden | 20–99 | ◐ LIKELY ACTIVE |
| MPMetro Paving Indirect | Lakewood | 100–499 | ◐ LIKELY ACTIVE |
| NPNorthern Paving Indirect | Fort Collins | 20–99 | ◐ LIKELY ACTIVE |
| OCOwens Corning Denver Asphalt | Denver | 20–99 | ◐ LIKELY ACTIVE |
| OCOwens Corning Denver Roofing | Denver | 100–499 | ◐ LIKELY ACTIVE |
| PWProtecto Wrap Company plant | Denver | 20–99 | ◐ LIKELY ACTIVE |
| RMReady Mixed Concrete Company Sedalia | Sedalia | 1–19 | ◐ LIKELY ACTIVE |
| SPSouthern Paving Indirect | Colorado Springs | 100–499 | ◐ LIKELY ACTIVE |
| SESuncor Energy, USA | Commerce City | 100–499 | ◐ LIKELY ACTIVE |
| 18120 85, LLC | Henderson | — | ◇ UNVERIFIED |
| ARAaa Roofing | Portable | — | ◇ UNVERIFIED |
| ARAll Rite Paving & Redi-mix INC | Rocky Ford Area | — | ◇ UNVERIFIED |
| AWAnadarko Wattenberg Oil Complex LLC - 16-13-745-12 Receipt Point | Keenesburg | — | ◇ UNVERIFIED |
| ACA&s Const CO | Trinidad 2 Mi E of Town | — | ◇ UNVERIFIED |
| ASA & S Construction CO. - Asphalt | Salida | — | ◇ UNVERIFIED |
| ACAsphalt Const INC | Grand Junction | — | ◇ UNVERIFIED |
| ACAsphalt Constructors, INC. | Alamosa | — | ◇ UNVERIFIED |
| ACAsphalt Constructors INC - Smith Pit | Blanca 2.5 Mi. E of | — | ◇ UNVERIFIED |
| APAsphalt Paving CO Eldridge St Plt | Golden E of Town | — | ◇ UNVERIFIED |
| APAsphalt Paving CO. - Portec Ultra | Breckenridge | — | ◇ UNVERIFIED |
| APAsphalt Paving (deleted From Inventory) | Castle Rock | — | ◇ UNVERIFIED |
| ASAsphalt Specialties Company, INC. | Boulder | — | ◇ UNVERIFIED |
| BCBasalt Const CO | Silt | — | ◇ UNVERIFIED |
| BOBerthoud Oil CO | Longmont | — | ◇ UNVERIFIED |
| BABettis Asphalt - Yuma Asphalt Plant | Yuma | — | ◇ UNVERIFIED |
| BRBituminous Roadways of CO INC | Commerce City | — | ◇ UNVERIFIED |
| BRBituminous Roadways of CO INC | Mead E of Town | — | ◇ UNVERIFIED |
| BDBlack Diamond Asphalt | Denver | — | ◇ UNVERIFIED |
| BPBlacktop Paving Deleted 9/15/78 | Denver | — | ◇ UNVERIFIED |
| BSBorder States Paving Srti | Denver | — | ◇ UNVERIFIED |
| BVBoulder Valley Oil | Lafayette | — | ◇ UNVERIFIED |
| BABp America Production Company | Bayfield | — | ◇ UNVERIFIED |
| CCCamas Colorado, INC (cedar Rapids Wash) | Lakewood | — | ◇ UNVERIFIED |
| CSCentennial State Paving, Inc.-hma Plant | Pueblo | — | ◇ UNVERIFIED |
| COChevron-thomas Oil | Boulder | — | ◇ UNVERIFIED |
| COCity of Montrose | Montrose | — | ◇ UNVERIFIED |
| COCity of Trinidad | Trinidad | — | ◇ UNVERIFIED |
| COCity Oil-chevron | Longmont | — | ◇ UNVERIFIED |
| CIClm Intl CORP | Sheridan | — | ◇ UNVERIFIED |
| CSC&m Sand and Gravel CO | Erie, 0.6 Mi Nw of | — | ◇ UNVERIFIED |
