| Iron County School District UT | Educational Services | 5 | $65,160 | - |
| Iron Door Pub MN | - | 0 | - | - |
| Iron Eagle Aviation, LLC GA | Educational Services | 2 | $51,200 | - |
| Iron Eagle Logistics, LLC VA | Transportation & Warehousing | 0 | - | F |
| Iron Fabrication Services Inc. MD | Manufacturing | 1 | $75,109 | A |
| Iron Fleet DSP LLC FL | Transportation & Warehousing | 0 | - | D |
| Iron Galaxy Orlando, LLC FL | Professional & Technical Services | 4 | $111,394 | - |
| Iron Hill Brewery NJ | - | 0 | - | - |
| Iron Lion Entries, LLC TN | Construction | 0 | - | - |
| Iron Mechanical, Inc. CA | Construction | 0 | - | F |
| Iron Mountain CA | Information & Media | 0 | - | F |
| Iron Mountain IN | Transportation & Warehousing | 0 | - | B |
| Iron Mountain MD | Information & Media | 0 | - | F |
| Iron Mountain NJ | Administrative & Waste Services | 0 | - | C |
| Iron Mountain PA | Transportation & Warehousing | 0 | - | A |
| Iron Mountain TX | Information & Media | 0 | - | F |
| Iron Mountain VA | Information & Media | 0 | - | B |
| Iron Mountain Information Management Services, Inc. NH | Professional & Technical Services | 6 | $163,462 | - |
| Iron Mountain Information Management, LLC NH | Professional & Technical Services | 13 | $182,931 | - |
| Iron Mountain Trap Rock Co. WI | - | 0 | - | - |
| Iron Systems, Inc. CA | Professional & Technical Services | 4 | $162,242 | - |
| Iron Tiger Logistics PA | - | 0 | - | - |
| Ironclad, Inc. CA | Professional & Technical Services | 25 | $164,600 | - |
| IronCraft TN | Manufacturing | 0 | - | F |
| Irongate Azrep BW LLC dba Trump International Hotel Waikiki HI | - | 0 | - | - |
| Ironhorse Funding, LLC. TX | - | 0 | - | - |
| IronRidge, Inc. CA | Manufacturing | 1 | $98,155 | - |
| Ironsdn, CORP. CA | Information & Media | 1 | $110,000 | - |
| Ironside Inc CA | - | 0 | - | - |
| Ironside Inc. dba Ironside Fish & Oyster CA | - | 0 | - | - |
| Ironside Logistics LLC OH | Transportation & Warehousing | 0 | - | B |
| Ironsite AI Inc. CA | - | 3 | $300,000 | - |
| IronTiger Logistics TX | - | 0 | - | - |
| IronTiger Logistics, Inc. PA | Transportation & Warehousing | 0 | - | F |
| IronUnits LLC. OH | Manufacturing | 0 | - | F |
| Ironwood Assisted Living AZ | - | 0 | - | - |
| Ironwood Assisted Living, LLC OH | Healthcare & Social Assistance | 0 | - | F |
| Ironwood Capital Management CA | Finance & Insurance | 1 | $125,000 | - |
| Ironwood Design Group LLC GA | - | 1 | $72,188 | - |
| Ironwood Heavy Highway LLC NY | Construction | 0 | - | D |
| Ironwood Industries IL | Manufacturing | 0 | - | A |
| Ironwood Management CA | - | 0 | - | - |
| Ironwood State Prison CA | Public Administration | 0 | - | F |
| Iroquois Hotel LLC NY | - | 0 | - | - |
| Iroquois Industries, Inc. MI | Manufacturing | 1 | $112,486 | F |
| Iroquois Manufacturing Co. VT | Manufacturing | 0 | - | F |
| Iroquois Nursing Home, Inc. NY | Healthcare & Social Assistance | 2 | $83,534 | - |
| Irr Supply Centers NY | Wholesale Trade | 0 | - | B |
| Irregular Hours Inc. NY | - | 1 | $218,000 | - |
| Irritec USA, Inc. CA | Utilities | 1 | $195,000 | - |
