| CMCedar Manufacturing (maxx Midwest) | Marion | IA | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| CPCedar Poly LLC | Bennett | IA | Primary Metal Manufacturing331419 | — | ◇ UNVERIFIED |
| CVCedar Valley CORP LLC | Des Moines | IA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| CDCed Dba 3e | Des Moines | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CRCemstone--clarion Ready Mix Plant | Clarion | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCemstone Concrete Materials-algona | Algona | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCemstone Concrete Materials-northwood | Northwood | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CICentral Iowa Ready Mix | Des Moines | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CICentral Iowa Ready Mix | Carroll | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CICentral Iowa Ready Mix Greenfield | Greenfield | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CICentral Iowa Ready Mix - Plant #3 - Grimes | Grimes | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CICentral Iowa Ready Mix Red Oak | Red Oak | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CICentral Iowa Ready Mix Shenandoah | Shenandoah | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CVCentrum Valley Farms LLC (decoster Farms of Iowa) | Clarion | IA | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| CCCessford Construction Co-plant 2 | Le Grand | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CSCfi Sales INC | Des Moines | IA | Plastics and Rubber Products Manufacturing326212 | — | ◇ UNVERIFIED |
| CTChamness Technologies | Eddyville | IA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| CGCharles Gabus Motors, Inc., Dba Toyota of Des Moines | Grimes | IA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| CLChemorse LTD | Des Moines | IA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CChem-tech (neogen) | Pleasantville | IA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CRChrome Reflections - Former Site of | Des Moines | IA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CCCiticasters Company | Des Moines | IA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| COCity of Davenport Composting Facility | Davenport | IA | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| COCity of Davenport Public Works Center | Davenport | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CMC.j. Moyna and Sons, INC. | Elkader | IA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| CJCmc Joist & Deck Iowa | Iowa Falls | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CRCohron Ready Mix-council Bluffs | Council Bluffs | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CWCo-line Welding INC | Sully | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CACollins Aerospace | Cedar Rapids | IA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| CACollins Aerospace | Cedar Rapids | IA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| CACollins Aerospace | Cedar Rapids | IA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| CECollins Engine Nozzles INC | West Des Moines | IA | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| CICollis Inc-ssw Enterprises | Clinton | IA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| CIConcrete INC - Gifford | Union | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CTConcrete Technologies INC | Urbandale | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CTConcrete Technologies. INC | Grimes | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCContinental Cement | West Des Moines | IA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| COCorn Oil One LLC | Council Bluffs | IA | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| CDCox Design & Metal Fabrication INC | Altoona | IA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| CLCozzini Llc-iowa Manufacturing Facility | Algona | IA | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| CVCrane Valves Fndry Sand Landfill-wa Cnty | Washington | IA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CWCreative Werks INC | Des Moines | IA | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
| CICreativison, INC. Dba Performance Display & Millwork | Grimes | IA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| CRCroell Redi-mix INC | Mason City | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCroell Redi-mix, INC - Decorah | Decorah | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| 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-west Union | West Union | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCti Ready Mix | Johnston | IA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| CRCti Ready Mix, INC | Carlisle | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
