| Illinois Secretary of State IL | Public Administration | 0 | - | B |
| Illinois Sleep Products Inc IL | Manufacturing | 0 | - | F |
| Illinois State Toll Highway Authority IL | Transportation & Warehousing | 0 | - | C |
| Illinois State Toll Highway Authority (FFO) IL | Transportation & Warehousing | 0 | - | F |
| Illinois State University IL | Educational Services | 17 | $77,535 | - |
| Illinois Tool Wolks INC MI | - | 0 | - | - |
| Illinois Tool Works TN | Manufacturing | 0 | - | F |
| Illinois Tool Works Inc. IL | Manufacturing | 25 | $109,731 | F |
| Illinois Tool Works Inc. MA | Manufacturing | 1 | $118,227 | D |
| Illinois Wesleyan University IL | Educational Services | 7 | $75,437 | - |
| Illume Ag HR, Inc. CA | - | 0 | - | - |
| Illume Candles LLC MN | - | 0 | - | - |
| Illumifin Corporation MN | Finance & Insurance | 6 | $130,000 | - |
| Illumina Inc. World Headquarters CA | - | 0 | - | - |
| Illumina Technology Solutions, LLC OR | Professional & Technical Services | 3 | $145,333 | - |
| Illumina, Inc Worldwide Headquarters CA | - | 0 | - | - |
| Illumina, Inc. CA | Professional & Technical Services | 67 | $152,400 | C |
| Illumina, Inc. CA | - | 0 | - | - |
| Illuminant Surgical, Inc. CA | - | 1 | $89,003 | - |
| Illuminate HC MI | Healthcare & Social Assistance | 0 | - | - |
| Illuminate USA LLC OH | Manufacturing | 3 | $115,000 | A |
| Illumination Entertainment LLC CA | - | 2 | $375,000 | - |
| Illumio, Inc. CA | Professional & Technical Services | 27 | $187,741 | - |
| Illumus FL | - | 0 | - | - |
| Ilogic Tek , L.L.C MA | Professional & Technical Services | 4 | $113,332 | - |
| Ilogic Tek , L.L.C MA | - | 10 | $117,687 | - |
| Ilogic, INC. NJ | Professional & Technical Services | 11 | $102,814 | - |
| ILogixedge LLC VA | Professional & Technical Services | 7 | $101,500 | - |
| ILPEA Industries, Inc. IN | Management of Companies | 0 | - | F |
| Ils Cargo, CORP FL | Transportation & Warehousing | 1 | $120,000 | - |
| Ilsco LLC OH | - | 0 | - | - |
| Iluka Resources VA | - | 0 | - | - |
| Ilumi Solutions, INC. TX | - | 2 | $209,394 | - |
| Ilya Kaminsky, D.C., A Professional CORPORATION CA | Healthcare & Social Assistance | 2 | $83,200 | - |
| IM 60th Street LLC NY | - | 0 | - | - |
| IM Global LLC IL | Wholesale Trade | 2 | $92,521 | - |
| IM Long Island Restaurant Group NY | - | 0 | - | - |
| IM NY Boca LLC FL | - | 0 | - | - |
| IM NY Florida LLC FL | - | 0 | - | - |
| Im Pro Makeup NY LP NY | Retail Trade | 11 | $105,000 | - |
| Im Solutions, INC. NJ | Professional & Technical Services | 10 | $95,142 | - |
| IMA Automation USA, Inc. IL | - | 0 | - | - |
| Imac Construction Inc. CA | Construction | 0 | - | F |
| Imacs, LLC FL | Healthcare & Social Assistance | 2 | $300,000 | - |
| Image Microsystems, Inc. TX | Wholesale Trade | 0 | - | F |
| Image Movers Digital, LLC CA | - | 0 | - | - |
| Image One, LLC IN | - | 0 | - | - |
| Image Options CA | Manufacturing | 0 | - | F |
| Image Partnership INC NY | - | 1 | $145,000 | - |
| Image Quality Labs, Inc. NC | - | 1 | $161,741 | - |
