| NSNippon Sanso Matheson INC | Grimes | — | ◐ LIKELY ACTIVE |
| PIPlasti-paint INC | Dewitt | — | ◐ LIKELY ACTIVE |
| SUSiegwerk USA CO | Des Moines | — | ◐ LIKELY ACTIVE |
| TSTwin State INC | Durant | — | ◐ LIKELY ACTIVE |
| VCVantage Corn Processors LLC | Cedar Rapids | — | ◐ LIKELY ACTIVE |
| VVertex | Camanche | — | ◐ LIKELY ACTIVE |
| AYAco Yp INC | Riverdale | — | ◇ UNVERIFIED |
| APAg Partners | Albert City | — | ◇ UNVERIFIED |
| AFAgvantage Fs, INC - Alburnett 8336 | Alburnett | — | ◇ UNVERIFIED |
| ABAllen Blasting and Coating | Burlington | — | ◇ UNVERIFIED |
| AAAspen Api INC | Sioux City | — | ◇ UNVERIFIED |
| BCBayer Cropscience LP | Des Moines | — | ◇ UNVERIFIED |
| CCCar-freshner Corporation | De Witt | — | ◇ UNVERIFIED |
| CLChemorse LTD | Des Moines | — | ◇ UNVERIFIED |
| CChem-tech (neogen) | Pleasantville | — | ◇ UNVERIFIED |
| COCity of Davenport Composting Facility | Davenport | — | ◇ UNVERIFIED |
| DVDiamond Vogel Paints | Marshalltown | — | ◇ UNVERIFIED |
| FEFarmers Elevator Cooperative - Rock Valley Nh3 | Rock Valley | — | ◇ UNVERIFIED |
| FHFlint Hills Resources - Davenport | Davenport | — | ◇ UNVERIFIED |
| FHFlint Hills Resources Menlo, LLC | Menlo | — | ◇ UNVERIFIED |
| HCHawkins Camanche, Ia | Camanche | — | ◇ UNVERIFIED |
| HCHeartland Co-op Evansville | Indianola | — | ◇ UNVERIFIED |
| HIHigley Industries | Dubuque | — | ◇ UNVERIFIED |
| HEHillside Estates Care Facility (now Bayer Production Supply) | Williamsburg | — | ◇ UNVERIFIED |
| IEIowa E.p.s. Products, INC - Des Moines | Des Moines | — | ◇ UNVERIFIED |
| KSK.a. Steel Chemicals INC. | Muscatine | — | ◇ UNVERIFIED |
| KFKoch Fertilizer, LLC - Garner Terminal | Garner | — | ◇ UNVERIFIED |
| KNKoch Nitrogen Company, LLC - Marshalltown Terminal | Marshalltown | — | ◇ UNVERIFIED |
| LCLandus Cooperative - Churdan | Churdan | — | ◇ UNVERIFIED |
| LCLandus Cooperative - Lake City | Lake City | — | ◇ UNVERIFIED |
| LILinde, INC. | Muscatine | — | ◇ UNVERIFIED |
| LILloyd INC | Shenandoah | — | ◇ UNVERIFIED |
| NPNational Purity LLC | Britt | — | ◇ UNVERIFIED |
| NANovartis Animal Health US INC | Larchwood | — | ◇ UNVERIFIED |
| PNPcs Nitrogen Fertilizer - Clinton Plant | Camanche | — | ◇ UNVERIFIED |
| PPioneer | Johnston | — | ◇ UNVERIFIED |
| PDPoet Dsm Project Liberty LLC | Emmetsburg | — | ◇ UNVERIFIED |
| PAPpg Architectural Finishes INC | Des Moines | — | ◇ UNVERIFIED |
| SEStoller Enterprises-cedar Rapids | Cedar Rapids | — | ◇ UNVERIFIED |
| TPTrajet Products, INC | Glenwood | — | ◇ UNVERIFIED |
| TETwin-state Engineering & Chemical CO | Walcott | — | ◇ UNVERIFIED |
| TSTwin State, Inc.- Durant | Durant | — | ◇ UNVERIFIED |
| UFUnited Farmers Cooperative - Lenox Plant | Lenox | — | ◇ UNVERIFIED |
| VDVan Diest Supply Company | Gilmore City | — | ◇ UNVERIFIED |
| AAAGP Algona Methyl Ester | Algona | 20–99 | ◐ LIKELY ACTIVE |
| AIAll-State Industries, Inc. Plastics Division | West Des Moines | 20–99 | ◐ LIKELY ACTIVE |
| ACAxalta Coating Systems | Fort Madison | 20–99 | ◐ LIKELY ACTIVE |
| BABASF Agricultural Solutions US LLC | Ames | 20–99 | ◐ LIKELY ACTIVE |
| BCBASF Corp - Polyurethanes | Malcom | 20–99 | ◐ LIKELY ACTIVE |
| CCamanche | Camanche | 1–19 | ◐ LIKELY ACTIVE |
