| HootBoard | |
| HooToo, Inc. | California |
| Hoover Web Design | Tennessee |
| Hop-on, Inc. | California |
| Hopae, Inc. | |
| Hope Biosciences | Texas |
| Hope College Computer Science Department | Michigan |
| Hope College Mathematics and Statistics Department | Michigan |
| Hope Community, Inc. | |
| Hope Heart Institute | |
| Hope International University | California |
| Hope Pharmaceuticals | |
| Hopewell Therapeutics | |
| Hopkins HR | Texas |
| Hopko Designs | |
| HOPO Therapeutics, Inc. | |
| HOPO Therapeutics, Inc. | |
| Hopper Security | |
| Hopping to Success Digital Solutions | |
| Hopscotch Technologies, Inc. | |
| HopSkipDrive | |
| Hopstack | Texas |
| HOPZERO | Texas |
| Hords Of Fun, LLC | Washington |
| Horizon | |
| Horizon Business Strategies | |
| Horizon Cable TV | California |
| Horizon Communications | California |
| Horizon Display, Inc. | California |
| Horizon Marketing | |
| Horizon Marketing Group, Inc. | |
| Horizon Media Group | Kentucky |
| Horizon Plus USA, LLC | |
| Horizon Productions | North Carolina |
| Horizon Software International, Inc. | Georgia |
| Horizon Software, Inc. | Illinois |
| Horizon Surgical Systems, Inc. | California |
| Horizon Technologies | Colorado |
| Horizon Technology | California |
| Horizon Technology Finance | Connecticut |
| Horizon Video Technologies, Inc. | Delaware |
| Horizon Worldwide Corporation | Texas |
| Horizon3.ai | California |
| HorizonGO | Florida |
| Horizons Digital, LLC | |
| Horizons Holdings International, Inc. | Nevada |
| Horizontal Digital | |
| Horne, LLP | |
| Horner Consulting and Publishing, LLC | Wisconsin |
| Hornet Capital | Texas |