| Iceberg Web Design | Minnesota |
| Icebreaker Agency, LLC | |
| Icebreaker App, LLC | |
| Iceburgh Solutions, LLC | Pennsylvania |
| IceCube Digital | |
| Iced.Dev | Arizona |
| ICEE Social | |
| Icegen Computing | New York |
| IceHook Systems, LLC | New York |
| Icelab Networks, LLC | Colorado |
| iCell Gene Therapeutics, Inc. | |
| iCentris, Inc. | Utah |
| iCentrix Analytics | New Hampshire |
| Icepick Development, LLC | |
| iCepts Technology Group, Inc. | Pennsylvania |
| ICERTIS | Washington |
| Icetips | Texas |
| ICF International, Inc. | Virginia |
| ICG Consulting | Arizona |
| ICG, Inc. | Florida |
| Ichnos Glenmark Innovation | New York |
| Ichor Biologics | |
| Ichor Life Sciences, Inc. | New York |
| Ichor Medical Systems, Inc. | California |
| Icicle Software | Alaska |
| ICIMS | New Jersey |
| iCita, LLC | Colorado |
| iClicker | New York |
| iClimber | California |
| iCloud | California |
| ICM America, LLC | Pennsylvania |
| ICM Document Solutions | Arizona |
| ICM Registry, LLC | Florida |
| ICML | California |
| ICO Group | |
| Ico Rally | California |
| iCode | Texas |
| iCode49 Technolabs | |
| Icogenex Corporation | Washington |
| iCohere | California |
| iColor Studio, LLC | New Jersey |
| iColoring AI | |
| Icom America, Inc. | Washington |
| Icom, Inc. | |
| Icom-Design | Texas |
| ICOMCO | Florida |
| ICOMM | Illinois |
| iCommissions | Louisiana |
| iComTech | California |
| ICON Aircraft, Inc. | |