| Cripple Creek & Victor Gold Mining Co | Victor | 7.9M |
| Climax Molybdenum Co-Climax Mine | Climax | 2.2M |
| Climax Molybdenum Co Henderson Mill | Parshall | 1.6M |
| Clean Harbors Deer Trail Llc. | Deer Trail | 99.2k |
| Public Service Co Of Colorado Hayden Station | Hayden | 11.2k |
| Trapper Mining Inc. | Craig | 7.8k |
| Public Service Co Of Colorado Comanche Station | Pueblo | 6.6k |
| Colorado Springs Utilities Ray Nixon Power Plant | Fountain | 4.6k |
| Public Service Co Of Colorado Pawnee Station | Brush | 4.0k |
| Evraz Rocky Mountain Steel | Pueblo | 280 |
| Rawhide Energy Station | Wellington | 268 |
| Cemex Construction Materials South Llc | Longmont | 155 |
| Suncor Energy Commerce City Refinery | Commerce City | 84 |
| Tri-State Generation & Transmission-Craig Station | Craig | 69 |
| Owens-Brockway Glass Container Inc Plant 28 | Windsor | 63 |
| Climax Molybdenum Co-Henderson Mine | Empire | 30 |
| Gcc Rio Grande Inc | Pueblo | 23 |
| Holcim Wcr Inc Centennial Ready Mix Plant | Englewood | 21 |
| Golden Aluminum | Fort Lupton | 19 |
| Rocky Mountain Bottle Co | Wheat Ridge | 19 |
| Holcim Wcr Inc Sand Creek Ready Mix Plant | Aurora | 17 |
| Holcim Wcr Inc Cs-East Ready Mix Plant | Colorado Springs | 16 |
| Holcim Wcr Inc Cs-North Ready Mix Plant | Colorado Springs | 13 |
| Holcim (Us) Inc Portland Plant | Florence | 12 |
| Holcim Wcr Inc Bannock Ready Mix Plant | Denver | 11 |
| Holcim Wcr Inc Broomfield Ready Mix Plant | Broomfield | 9 |
| Holcim Wcr Inc Cs-Main Ready Mix Plant | Colorado Springs | 9 |
| Holcim Wcr Inc Denver Ready Mix Plant | Denver | 8 |
| Holcim Wcr Inc Commerce City Ready Mix Plant | Henderson | 7 |
| Holcim Wcr Inc Firestone Ready Mix Plant | Longmont | 7 |
| Holcim Wcr Inc Brighton Ready Mix Plant | Brighton | 7 |
| Holcim Wcr Inc Franktown Ready Mix Plant | Franktown | 6 |
| Unicircuit Inc | Littleton | 1 |
| Halliburton Fort Lupton Field Camp | Fort Lupton | 0 |
| Oldcastle Precast Inc | Littleton | 0 |
| Oldcastle Precast Inc | Platteville | 0 |
| Smyrna Ready Mix Concrete Llc - Rock Creek Ready Mix | Lafayette | 0 |
| Smyrna Ready Mix Concrete Llc - Brighton Ready Mix | Brighton | 0 |
| Smyrna Ready Mix Concrete Llc - Castle Rock Ready Mix | Castle Rock | 0 |
| Us Mix | Denver | 0 |
| Smyrna Ready Mix Concrete Llc - Quivas Ready Mix | Denver | 0 |
| Smyrna Ready Mix Concrete. Llc - Chambers Ready Mix | Aurora | 0 |
| Smyrna Ready Mix Concrete Llc - Arvada Ready Mix | Arvada | 0 |
| Smyrna Ready Mix Concrete Llc - Titan Ready Mix | Littleton | 0 |
| Smyrna Ready Mix Concrete Llc - Highway 85 Ready | Colorado Springs | 0 |
| Smyrna Ready Mix Concrete Llc - Capital Ready Mix | Colorado Springs | 0 |
| Brannan Ready Mix - South Ready Mix | Englewood | 0 |
| Smyrna Ready Mix Concrete Llc - Spec Agg Ready Mix | Golden | 0 |
| Brannan Sand & Gravel- Central Ready Mix | Commerce City | 0 |
| Ready Mixed Concrete Co Plant 14 | Lafayette | 0 |
| Summit View Ready Mix | Fort Collins | 0 |
| Smyrna Ready Mix Concrete Llc - Picadilly Ready Mix | Aurora | 0 |
| Smyrna Ready Mix Concrete Llc - Highway 34 Ready Mix | Greeley | 0 |
| Ready Mixed Concrete Plant 11 | Arvada | 0 |
| Burnco Colorado Llc - Denver | Denver | 0 |
| Burnco Colorado Llc - Henderson | Henderson | 0 |
| Burnco Colorado Llc - Titan | Littleton | 0 |
| Burnco Colorado Llc - Colorado Springs (620) | Colorado Springs | 0 |
| Burnco Colorado Llc - Fort Lupton | Fort Lupton | 0 |
| Burnco Colorado Llc - Firestone | Longmont | 0 |
| Burnco Colorado Llc - Windsor | Windsor | 0 |
| Burnco Colorado Llc - Milliken | Milliken | 0 |
| Smyrna Ready Mix Concrete Llc - Del Camino Ready Mix | Longmont | 0 |
| Burnco Colorado Llc - Kiowa | Kiowa | 0 |
| Ready Mixed Concrete Plant 12 | Aurora | 0 |
| Burnco Colorado Llc - Jeffco | Golden | 0 |
| Ready Mixed Concrete Co - Franklin Street Plant | Denver | 0 |
| Brannan Ready Mix - West Plant | Denver | 0 |
| Smyrna Ready Mix Concrete Llc - Valmont Ready Mix | Boulder | 0 |
| Ready Mixed Concrete - Plant 13 | Sedalia | 0 |
| Burnco Colorado Llc - Pueblo | Pueblo | 0 |
| Ready Mixed Concrete Plant 3 | Brighton | 0 |
| Burnco Colorado Llc - Colorado Springs (621) | Colorado Springs | 0 |
| Wright & Mcgill Co | Denver | 0 |
| Denver Metal Finishing | Denver | 0 |
| Best Block Pubb | Pueblo | 0 |
| Florida Cirtech Inc. | Greeley | 0 |