| DDDenison Dry Ice Plant | Denison | IA | Chemical Manufacturing325120 | 20-99 | ◐ LIKELY ACTIVE |
| DADiamond Animal Health, INC | Des Moines | IA | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
| D5Division 56 | Davenport | IA | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| EFElanco Fort Dodge | Fort Dodge | IA | Chemical Manufacturing325414 | 100-499 | ◐ LIKELY ACTIVE |
| FEFenstall Equipment LLC | Grinnell | IA | Chemical Manufacturing325193 | — | ◐ LIKELY ACTIVE |
| FMForza Management, Inc. | Council Bluffs | IA | Chemical Manufacturing325520 | 20-99 | ◐ LIKELY ACTIVE |
| HIHelena Industries LLC - Des Moines | Des Moines | IA | Chemical Manufacturing325320 | 100-499 | ◐ LIKELY ACTIVE |
| HAHorizon Ag-Products - IA Plant | Onawa | IA | Chemical Manufacturing325314 | 1-19 | ◐ LIKELY ACTIVE |
| HSHot Shots Nm LLC | Davenport | IA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| ICIDT Coralville 2400 | Coralville | IA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| ICIDT Coralville 2470 | Coralville | IA | Chemical Manufacturing325199 | 100-499 | ◐ LIKELY ACTIVE |
| ICIDT Coralville 2501 | Coralville | IA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| ICIDT Coralville 2660 | Coralville | IA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| ICIDT Coralville 2812 | Coralville | IA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| ICIowa Cannabis Company Manufacturing | Iowa City | IA | Chemical Manufacturing325412 | 1-19 | ◐ LIKELY ACTIVE |
| JGJls Green Solutions LLC | Cedar Rapids | IA | Chemical Manufacturing325314 | — | ◐ LIKELY ACTIVE |
| JPJRS Pharma LP 725 41st Ave DR SW | Cedar Rapids | IA | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| JPJRS Pharma LP 801 1st Street SW | Cedar Rapids | IA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| MPManufacturing Port Neal | Sergeant Bluff | IA | Chemical Manufacturing325311 | 100-499 | ◐ LIKELY ACTIVE |
| MAMerck Ames, IA Facility | Ames | IA | Chemical Manufacturing325414 | 20-99 | ◐ LIKELY ACTIVE |
| MTMobren Transport | Sioux City | IA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| NANOC - Ankeny | Ankeny | IA | Chemical Manufacturing325120 | 20-99 | ◐ LIKELY ACTIVE |
| NANutrien Ag Solutions, INC | Wall Lake | IA | Chemical Manufacturing325320 | — | ◐ LIKELY ACTIVE |
| OHOmnium Hampton | Hampton | IA | Chemical Manufacturing325320 | 20-99 | ◐ LIKELY ACTIVE |
Phibro Animal Health Corporation - Eagle Grove | Eagle Grove | IA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| PBPleasantville Building | Pleasantville | IA | Chemical Manufacturing325320 | 1-19 | ◐ LIKELY ACTIVE |
| PBPoet Biorefining - Coon Rapids, LLC | Coon | IA | Chemical Manufacturing325193 | 20-99 | ◐ LIKELY ACTIVE |
| PLPoet, LLC | Jewell | IA | Chemical Manufacturing325193 | 20-99 | ◐ LIKELY ACTIVE |
| PBProliant Biologicals - Boone | Boone | IA | Chemical Manufacturing325414 | 20-99 | ◐ LIKELY ACTIVE |
| PIPyramid Inc. | Newton | IA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| QCQuad County Corn Processors Cooperative | Galva | IA | Chemical Manufacturing325193 | — | ◐ LIKELY ACTIVE |
| QAQuill Avenue | Boone | IA | Chemical Manufacturing325414 | 20-99 | ◐ LIKELY ACTIVE |
| STS5g Therapeutics INC | Iowa City | IA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| SBSergeant Bluff Methyl Ester | Sergeant Bluff | IA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| SCsioux city | Sioux City | IA | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| SDSnedden Drive | Boone | IA | Chemical Manufacturing325414 | 20-99 | ◐ LIKELY ACTIVE |
| TRTalus Renewables - Boone, IA | Boone | IA | Chemical Manufacturing325311 | 1-19 | ◐ LIKELY ACTIVE |
| TSThe Scotts Company - Fort Madison | Fort Madison | IA | Chemical Manufacturing325320 | 100-499 | ◐ LIKELY ACTIVE |
| TSThe Scotts Company - Pacific Junction | Pacific Junction | IA | Chemical Manufacturing325314 | 1-19 | ◐ LIKELY ACTIVE |
| VRValero Renewables Fuels Company, LLC, Lakota Plant | Lakota | IA | Chemical Manufacturing325193 | 20-99 | ◐ LIKELY ACTIVE |
| VNVerbio - Nevada | Nevada | IA | Chemical Manufacturing325193 | 20-99 | ◐ LIKELY ACTIVE |
| WCWebster City | Webster City | IA | Chemical Manufacturing325320 | 500+ | ◐ LIKELY ACTIVE |
| WWWIE Wall Lake | Wall Lake | IA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| VPVeronica Patton | Davenport | IA | Chemical Manufacturing325620 | — | ◐ LIKELY ACTIVE |
| APAir Products and Chemicals INC - Co2 Recovery Plant | Council Bluffs | IA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| APAir Products and Chemicals, INC. Co2 Recovery Plant | Nevada | IA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| BIBreda, Ia 6011 | Breda | IA | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Black Soil | Granville | IA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Kirkman | Kirkman | IA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Legacy | Sanborn | IA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |