| IRENE TRUJILLO DBA CARE HOME HEALTH AGENCY TX | Healthcare & Social Assistance | 0 | — | F |
| IRF Intelligent RF Solutions LLC MD | Manufacturing | 0 | — | D |
| IRFlex Corporation VA | Professional & Technical Services | 1 | $73,798 | — |
| iRhythm Technologies IL | Healthcare & Social Assistance | 0 | — | A |
| iRhythm Technologies TX | Healthcare & Social Assistance | 0 | — | A |
| iRhythm Technologies, Inc. CA | Healthcare & Social Assistance | 5 | $171,078 | F |
| Iridium Industries PA | Manufacturing | 0 | — | A |
| Iridium Satellite, LLC AZ | Information & Media | 3 | $156,407 | — |
| IRIS CUSTOM SOLUTIONS LLC IL | Professional & Technical Services | 2 | $120,000 | — |
| IRIS INFOTECH INC FL | Professional & Technical Services | 4 | $94,442 | — |
| Iris Software, Inc NJ | Professional & Technical Services | 60 | $128,375 | — |
| Iris Technology Inc. MI | Professional & Technical Services | 1 | $180,000 | — |
| Iris Vinyards and Tasting Room OR | Manufacturing | 0 | — | A |
| Irish Communication Company CA | Construction | 0 | — | D |
| Irish Construction CA | Construction | 0 | — | F |
| Irish Electric Corp. NH | Construction | 0 | — | F |
| Irish Electric Corporation CA | Construction | 0 | — | A |
| Irish on Grand MN | — | 0 | — | — |
| Irish Roofing of Michigan, LLC MI | Construction | 0 | — | A |
| Irish Titan, LLC MN | Professional & Technical Services | 1 | $120,000 | — |
| IRISNDT CA | — | 0 | — | — |
| IRISNDT Inc. TX | Professional & Technical Services | 3 | $79,075 | — |
| IRL Systems, Inc. NY | Construction | 0 | — | A |
| IRN Intl Co CO | Healthcare & Social Assistance | 0 | — | A |
| IRNM Hotel Cromwell llc CT | Accommodation & Food Services | 0 | — | A |
| IROBOT CORPORATION MA | Professional & Technical Services | 25 | $127,537 | — |
| IROKO Pharmaceuticals LLC PA | — | 0 | — | — |
| Iron & Metals, Inc CO | Wholesale Trade | 0 | — | F |
| Iron & String Life Enhancement OH | Healthcare & Social Assistance | 0 | — | A |
| Iron and String Life Enhancement OH | Healthcare & Social Assistance | 0 | — | C |
| Iron Bow Technologies, LLC FL | — | 0 | — | — |
| Iron Bow Technologies, LLC VA | Professional & Technical Services | 2 | $167,500 | — |
| Iron City Express PA | Administrative & Waste Services | 0 | — | A |
| IRON CITY WOOD PRODUCTS, INC. OH | Manufacturing | 0 | — | A |
| Iron Clad Logistics LLC WI | Transportation & Warehousing | 0 | — | D |
| Iron Construction, Inc. CA | Construction | 0 | — | F |
| Iron County Medical Care Facility MI | Healthcare & Social Assistance | 0 | — | F |
| Iron County Road Commission MI | Construction | 0 | — | D |
| Iron County School District UT | Educational Services | 2 | $59,538 | — |
| Iron Door Pub MN | — | 0 | — | — |
| Iron Eagle Aviation, LLC GA | Educational Services | 1 | $51,200 | — |
| Iron Eagle Logistics, LLC VA | Transportation & Warehousing | 0 | — | F |
| Iron EagleX FL | Professional & Technical Services | 0 | — | A |
| Iron Fabrication Services Inc. MD | Manufacturing | 1 | $75,109 | A |
| Iron Fabrication Services LLC WA | Construction | 0 | — | A |
| Iron Fish Construction LLC VA | Construction | 0 | — | A |
| Iron Fish Distillery LLC MI | Manufacturing | 0 | — | F |
| Iron Fleet DSP LLC FL | Transportation & Warehousing | 0 | — | D |
| Iron Galaxy Orlando, LLC FL | Professional & Technical Services | 3 | $107,106 | — |
| Iron Gate Industries, LLC dba Morrison Custom Welding OH | Construction | 0 | — | F |
