| HSHog Slat INC. - Lamar Plant | Lamar | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HPHolcim Portland Plant | Florence | CO | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| HIHolcim (us) INC - Fort Collins Terminal | Fort Collins 3.9 Mi. Nw of | CO | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| HIHolcim (us) INC. Portland Pla Nt | Florence, 3.8 Mi E of | CO | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| HIHolcim-wcr INC - Fort Collins | Fort Collins | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ITInternational Technifab Spi | Denver | CO | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| IFIrving F Jensen CO Dba Castle Rock Const | Sioux City | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JMJp Marble & Granite, LLC | Sheridan | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| JRJtl-knife River- Portable Lo-pro 250 Cbp | Cheyenne | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LLafarge | Carbondale | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LWLafarge West, INC. | Golden 7.1 Mi. Sw of | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LWLafarge West, INC. | Littleton Area | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LWLafarge West, INC. | Denver | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLangston Concrete - Langston Redi Mix | Florence | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLawson Construction CO | Lincoln County | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LMLibrestone Marble & Granite, LLC | Commerce City | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| LPLindsay Precast, INC. | Colorado Springs | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| LCLobato Construction - Mc-8t Plant | Platteville | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LRLottman Ready Mix - Port Concrete Bp | Hugo | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LSLuxury Stone, INC. | Englewood | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MGMagallanes Granite and Marble | Denver | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MMMartin Marietta Materials, INC. | Severance | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMartin Marietta - Rigden Ready Mix | Fort Collins Area | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMartin Marietta - South Santa Fe | Erie | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MSMaster Stone, LLC | Sheridan | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MGMetro Granite & Marble INC | Denver | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MWMillstone Weber - Port Batch Plant #7001 | St. Charles | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MIM.j. International, LLC | Denver | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MPMobile Pre Mix-brighton | Brighton, 0.5 Mi Nw of | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MRMontrose Rmc Plant | Montrose | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MSMountain Stone, Tile & Marble, LLC | Montrose | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MCMtg Corporation | Sheridan | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| NMNorman's Memorials, Inc. | Wheat Ridge | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| OHODC Holdings LLC | Evans | CO | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| OAOldcastle Apg - Loveland | Loveland | CO | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure - Platteville | Loveland Area | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group INC. Dba Four Corners | Durango 4.1 Mi. N of | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OSOldcastle Sw Group - Minturn Concrete | Minturn | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OSOldcastle Sw Grp - Gunnison Redi-mix Pit | Gunnison Area | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OWOldcastle Westile, INC. | Littleton | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| OCOrnamental Concrete INC | Arvada | CO | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| OOOut of the Animas LLC | Durango | CO | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| OGOwens-brockway Glass - Windsor #28 | Windsor | CO | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| PCPanhandle Concrete - Port Batch Plant | Amarillo | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PGParagon Granite & Marble | Longmont | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PLPete Lien - Judge Orr Ready Mix Plant | Colorado Springs | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PLPete Lien & Sons - Plant #3 (drennan) | Colorado Springs | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PLPete Lien & Sons - St Barbara Ready Mix | Portable Source | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PMPrometheus Materials INC | Longmont | CO | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| PGPryor Giggy CO | Pueblo | CO | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
