| iovino masonry NV | Construction | 0 | — | F |
| Iowa Alchoholic Beverage Division (ABD) IA | — | 0 | — | — |
| Iowa Aluminum IA | Manufacturing | 0 | — | F |
| Iowa American Water Company IA | Utilities | 0 | — | A |
| Iowa Anesthesia Associates, PC IA | — | 0 | — | — |
| Iowa Bath Solutions, LLC IA | Construction | 0 | — | F |
| Iowa Bath Solutions, LLC IL | Construction | 0 | — | A |
| Iowa Bath Solutions, LLC SD | Construction | 0 | — | A |
| Iowa Beverage Systems, Inc. IA | Wholesale Trade | 0 | — | F |
| Iowa Bridge & Culvert, LC IA | Construction | 0 | — | F |
| Iowa Cagefree LLLP IA | Agriculture & Forestry | 0 | — | F |
| Iowa Cannabis Company IA | Agriculture & Forestry | 0 | — | A |
| Iowa City Hotel Associates LLC IA | Accommodation & Food Services | 0 | — | F |
| Iowa City Ready Mix, Inc. IA | Manufacturing | 0 | — | A |
| Iowa Civil Contracting, Inc. IA | Construction | 0 | — | F |
| Iowa Concrete Cutting, Inc. IA | Construction | 0 | — | A |
| Iowa Concrete, LLC IA | Construction | 0 | — | F |
| Iowa Consultants Inc. (Manhattan Plaza Inc.) NY | — | 0 | — | — |
| IOWA CORN PROCESSORS IA | Manufacturing | 0 | — | F |
| Iowa Department for Natural Resources IA | Public Administration | 0 | — | A |
| Iowa Department of Natural Resources IA | Public Administration | 0 | — | A |
| Iowa Department of Revenue IA | Public Administration | 1 | $130,000 | — |
| Iowa Department of Transportation IA | Public Administration | 0 | — | B |
| Iowa Diabetes & Endocrinology Research Center IA | Healthcare & Social Assistance | 0 | — | F |
| Iowa Donor Network IA | Healthcare & Social Assistance | 0 | — | A |
| Iowa Emergency Services LLC TN | Healthcare & Social Assistance | 1 | $572,000 | — |
| Iowa Engineered Processes Corporation IA | Manufacturing | 0 | — | F |
| IOWA EPS PRODUCTS IA | Manufacturing | 0 | — | A |
| Iowa Falls Heating/AC/Plumbing DBA Reliable1 IA | Construction | 0 | — | F |
| Iowa Falls Heating/AC/Plumbing DBA Reliable1 Heating/AC/Plumbing IA | Construction | 0 | — | A |
| Iowa Farm Bureau Federation Property Management IA | Real Estate | 0 | — | A |
| Iowa Fire Control, LLC IA | Construction | 0 | — | A |
| Iowa Health Home Care IA | — | 0 | — | — |
| Iowa Healthcare Collaborative IA | Other Services | 1 | $94,000 | — |
| Iowa Home Care LLC IA | Healthcare & Social Assistance | 0 | — | F |
| Iowa Illinois Taylor Insulation, Contracting IA | Construction | 0 | — | A |
| Iowa Illinois Taylor Insulation, Inc. IA | Administrative & Waste Services | 0 | — | A |
| Iowa Lakes Electric Coop IA | Utilities | 0 | — | C |
| IOWA LAKES REGIONAL WATER IA | Utilities | 0 | — | F |
| IOWA LONG TERM CARE RISK MGMT ASSOCIATION IA | Healthcare & Social Assistance | 0 | — | F |
| Iowa Masonic Health Facilities IA | Healthcare & Social Assistance | 0 | — | A |
| Iowa Mold Tooling IA | Manufacturing | 0 | — | F |
| Iowa Ottumwa Good Samaritan Society Nursing Care Facility IA | Healthcare & Social Assistance | 0 | — | F |
| Iowa Physicians Clinic Medical Foundation IA | Healthcare & Social Assistance | 6 | $420,189 | — |
| Iowa Plains Signing, Inc IA | Construction | 0 | — | B |
| Iowa Premium IA | Manufacturing | 0 | — | C |
| IOWA PUMP WORKS, INC. IA | Wholesale Trade | 0 | — | F |
| Iowa Select Farms IA | Agriculture & Forestry | 0 | — | F |
| Iowa Specialty Hospitals and Clinics IA | Healthcare & Social Assistance | 0 | — | F |
| Iowa State University of Science and Technology IA | Educational Services | 69 | $78,958 | — |
