| CRCroell Redi-mix Inc-elkader | Elkader | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCroell Redi-mix Inc-elma | Elma | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCroell Redi-mix Inc-lansing | Lansing | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCroell Redi-mix Inc-monona | Monona | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCroell Redi-mix Inc-west Union | West Union | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCti Ready Mix, INC | Carlisle | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DPDukes Properties | Des Moines | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| EBEldridge Bag Plant | Eldridge | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| FCFlynn CO | Iowa | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FCFlynn CO INC - Dubuque | Dubuque | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Cedar Rapids | Cedar Rapids | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Des Moines | Des Moines | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Humboldt | Humboldt | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Iowa Falls | Iowa Falls | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| FPForterra Pipe & Precast - West Des Moines | West Des Moines | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| GAGcc Alliance Concrete Inc-akron | Akron | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GAGcc Alliance Concrete, INC - Cherokee (south) | Cherokee | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GAGcc Alliance Concrete Inc-sioux Center | Sioux Center | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GCGlen-gery CORP | Redfield | IA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GPGriffin Pipe Products Company | Council Bluffs | IA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| HRHamilton Ready Mix | Jefferson | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HCHancock Concrete Products | Lake View | IA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| HRHawk-i Ready Mix | Coralville | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IRIdeal Ready Mix CO INC - Burlington | Burlington | IA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| IRIdeal Ready Mix CO INC - Keokuk | Keokuk | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IRIdeal Ready Mix CO INC - Knoxville | Knoxville | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IIIpc INC | Des Moines | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JCJas Construction, LLC | Altoona | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KLKelderman Lime | Des Moines | IA | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| LHLiberty Holdings | Grimes | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LRLiberty Ready Mix - Grimes | Grimes | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LRLiberty Ready Mix - Van Meter Facility | Van Meter | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MManatts | Bondurant | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCManatts Concrete | Ankeny | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIManatts, INC. | Walford | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIManatt's INC - Huxley | Huxley | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIManatt's INC - Newton | Newton | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MBMidwestern Bioag Holdings LLC | Davenport | IA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MRMoorhouse Ready Mix Inc-carroll | Carroll | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NINorwalk Iowa Ready Mix | Ankeny | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NRNorwalk Ready Mix | Des Moines | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NRNorwalk Ready Mix Concrete INC | Indianola | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRandall Ready Mix LLC - Forest City | Forest City | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRandall Ready Mix LLC - Manly | Manly | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SISpec-cast INC | Dyersville | IA | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| TVTcc - Vinton | Vinton | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| TMTunnel Mill Polymer, INC | Alden | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| WWWilliams Wilbert Vault Works INC | Des Moines | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| SR"4418 - Shell Rock Concrete Plant" | Shell Rock | IA | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| SB"4419 - Shelby Bagging Plant" | Shelby | IA | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
