| AIAggregate Industries Wcr INC Drake Ready Mix Plant | Fort Collins | — | ◇ UNVERIFIED |
| BCBestway Concrete CO | Windsor | — | ◐ LIKELY ACTIVE |
| CLColorado Lien CO | Fort Collins | — | ◐ LIKELY ACTIVE |
| LRLoveland Ready Mix | Loveland | — | ◐ LIKELY ACTIVE |
| AIAggregate Industries - Wcr, INC. | Fort Collins | — | ◇ UNVERIFIED |
| FIFiberon INC | Fort Collins | — | ◇ UNVERIFIED |
| FRFront Range Reddi Mix - 651 S Cr 9e | Loveland Area | — | ◇ UNVERIFIED |
| LCLawson Construction - 22-906 | Loveland | — | ◇ UNVERIFIED |
| LRLoveland Ready Mix Concrete - Green Pit | Johnstown | — | ◇ UNVERIFIED |
| MMMartin Marietta Mtrls - Batch Plant | Estes Park | — | ◇ UNVERIFIED |
| MMMartin Marietta Rigden Ready Mix | Fort Collins | — | ◇ UNVERIFIED |
| RMRocky Mountain Cultured Marble INC | Fort Collins | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Summit View Ready Mix | Fort Collins | — | ◇ UNVERIFIED |
| SWStone Wholesale - Brownstone Quarry | Laporte | — | ◇ UNVERIFIED |
| SVSummit View | Fort Collins | — | ◇ UNVERIFIED |
| VBValley Block Loveland Facility | Loveland | — | ◇ UNVERIFIED |
| CJColorado Johnstown Thompson Parkway | Johnstown | 1–19 | ◐ LIKELY ACTIVE |
| CLColorado Loveland Powell Street | Loveland | 1–19 | ◐ LIKELY ACTIVE |
| DTDelta Technologies, Limited | Loveland | — | ◐ LIKELY ACTIVE |
| LCLoveland CT | Loveland | 20–99 | ◐ LIKELY ACTIVE |
| CKCapstone Kitchen & Bath, LLC | Fort Collins | — | ◇ UNVERIFIED |
| EPEarthstone Products, LLC | Fort Collins | — | ◇ UNVERIFIED |
| HIHolcim (us) INC - Fort Collins Terminal | Fort Collins 3.9 Mi. Nw of | — | ◇ UNVERIFIED |
| HIHolcim-wcr INC - Fort Collins | Fort Collins | — | ◇ UNVERIFIED |
| JMJordan Marble & Granite, LLC | Loveland | — | ◇ UNVERIFIED |
| LRLoveland Ready Mix Concrete | Loveland | — | ◇ UNVERIFIED |
| LRLoveland Ready Mix Concrete INC | Loveland | — | ◇ UNVERIFIED |
| MMMartin Marietta - Rigden Ready Mix | Fort Collins Area | — | ◇ UNVERIFIED |
| MPMetro Pavers INC Portable | Loveland | — | ◇ UNVERIFIED |
| MPMobile Premix INC Permit 85lr150 | Fort Collins | — | ◇ UNVERIFIED |
| OAOldcastle Apg - Loveland | Loveland | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure - Platteville | Loveland Area | — | ◇ UNVERIFIED |
| PCPampa Concrete CO INC Portable | Fort Collins | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Estes Park Mix Plant | Estes Park Area | — | ◇ UNVERIFIED |
| SOStoneworks of Colorado LLC | Loveland | — | ◇ UNVERIFIED |
| WSWeaver Stone Company | Windsor | — | ◇ UNVERIFIED |
| WMWestern Mobile Boulder, INC. | Estes Park | — | ◇ UNVERIFIED |
| WMWestern Mobile Was Flatirons Concrete | Fort Collins | — | ◇ UNVERIFIED |
