| BCBestway Concrete CO - Denver | Denver | 20–99 | ● ACTIVE |
 Copeland Enterprises, INC. | Denver | — | ● ACTIVE |
 Granite World of Colorado, LLC | Denver | — | ● ACTIVE |
 Johns Manville Corporation | Denver | — | ● ACTIVE |
 Newmont USA Limited | Denver | — | ● ACTIVE |
 Vasquez Ready Mix, LLC | Denver | — | ● ACTIVE |
| GSGeneral Shale - Denver Brick Plant #60 | Denver | — | ◐ LIKELY ACTIVE |
| QDQuikrete - Denver, CO Plant | Denver | 20–99 | ◐ LIKELY ACTIVE |
| RMReady Mixed Concrete Company - Franklin Street Plant | Denver | 20–99 | ◐ LIKELY ACTIVE |
| MMMartin Marietta Mtrls - Quivas | Denver | — | ◐ LIKELY ACTIVE |
| HIHolcim-wcr INC - Bannock | Denver | — | ◇ UNVERIFIED |
| Vasquez Ready Mix LLC - Ross Bandit | Denver | — | ◇ UNVERIFIED |
| ECEncon Colorado, LLC | Denver | 20–99 | ◐ LIKELY ACTIVE |
| QBQuikrete-concrete Bagging Plant | Denver | — | ◐ LIKELY ACTIVE |
| RMReady Mixed Concrete CO - Plant 1 | Denver | — | ◐ LIKELY ACTIVE |
| IHInterstate Highway Construction | Denver | — | ◐ LIKELY ACTIVE |
| MCMountain Cement CO | Denver | — | ◐ LIKELY ACTIVE |
| UGUS Gypsum Denver | Denver | — | ◐ LIKELY ACTIVE |
| AIAggregate Industries - Wcr INC | Denver | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products | Denver | — | ◇ UNVERIFIED |
| BBB&b Blending INC | Denver | — | ◇ UNVERIFIED |
| BRBrannan Ready Mix Company | Denver | — | ◇ UNVERIFIED |
| HIHolcim-wcr INC - Denver Plant | Denver | — | ◇ UNVERIFIED |
| JBJohn Balistreri | Denver | — | ◇ UNVERIFIED |
| MMMetro Mix LLC | Denver | — | ◇ UNVERIFIED |
| MWMillstone Weber - Concrete Plant #7001 | Denver | — | ◇ UNVERIFIED |
| MMMonarch Marble INC | Denver | — | ◇ UNVERIFIED |
| PPPic Plastics | Denver | — | ◇ UNVERIFIED |
| PCPremier Countertops, INC. | Denver | — | ◇ UNVERIFIED |
| RMRinker Materials Hydro Conduit | Denver | — | ◇ UNVERIFIED |
| RMRocky Mountain Prestress LLC (structural Plant) | Denver | — | ◇ UNVERIFIED |
| RCRocla Concrete Tie Incorporated | Denver | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Osage Portable Plant | Denver | — | ◇ UNVERIFIED |
| TITopperscot INC | Denver | — | ◇ UNVERIFIED |
| UMUS Mix CO. | Denver | — | ◇ UNVERIFIED |
| WCWells Concrete - Architectural Plant | Denver | — | ◇ UNVERIFIED |
| AUAPG - US Mix Denver | Denver | 20–99 | ◐ LIKELY ACTIVE |
| ASArizona Shower Door - Denver | Denver | 20–99 | ◐ LIKELY ACTIVE |
| BRBrannan Ready Mix West | Denver | 1–19 | ◐ LIKELY ACTIVE |
| EDEnCon Design LLC | Denver | 1–19 | ◐ LIKELY ACTIVE |
| GSGeneral Shale Brick Inc- Denver | Denver | 100–499 | ◐ LIKELY ACTIVE |
| PCPS Colorado Denver Moline Street | Denver | 1–19 | ◐ LIKELY ACTIVE |
| GMGranite & Marble Designs, LLC | Denver | — | ◇ UNVERIFIED |
| AWAccent Window INC | Denver | — | ◇ UNVERIFIED |
| AWAccent Windows Products INC | Denver | — | ◇ UNVERIFIED |
| ASAmerican Solid Stone | Denver | — | ◇ UNVERIFIED |
| ASArizona Shower Doors of Colorado, LLC | Denver | — | ◇ UNVERIFIED |
| ATAt Thompson | Denver | — | ◇ UNVERIFIED |
| BSBellagio Stone INC. | Denver | — | ◇ UNVERIFIED |
| BGBella Glass Production, Inc. | Denver | — | ◇ UNVERIFIED |
