| Huntsville Macintosh Users Group | Alabama |
| Huntsville PR | Alabama |
| Huons USA | |
| Hupside | |
| Hurdler Studios, Inc. | |
| Hureka Techologies, Inc. | |
| Hurley Consulting Associates | New Jersey |
| Huron Capital Partners | Michigan |
| Huron Consulting Group, Inc. | Illinois |
| Hurrdat, LLC | |
| Hurricane Electric | |
| Hurricane Electric Internet Services | California |
| Hurricane Electronics Lab, Inc. | Utah |
| Hurricane Marketing | Maryland |
| Hurst Internet Marketing | |
| HushLink | |
| HUSL Digital | Virginia |
| Husson University | Maine |
| Husted Computers | Washington |
| Hustle | California |
| Hustle Fund | California |
| Huston-Tillotson University | Texas |
| Hutchins Systems, Inc. | Georgia |
| Hutchinson Associates, Inc. | |
| HUTKO.dev | |
| Hutman, Inc. | Minnesota |
| Hutt Capital | Oregon |
| huu.la | California |
| HUUB | Arizona |
| Huxley Medical, Inc. | |
| HUYA Bioscience International, LLC | California |
| HVNnet.com | Massachusetts |
| HWdTech, LLC | |
| HX Venture Fund | Texas |
| HxP and Associates, Inc. | Texas |
| Hy-Tech PC | Wisconsin |
| Hyacinth Technology, Inc. | Massachusetts |
| Hyalex Orthopaedics, Inc. | Massachusetts |
| Hybrent, Inc. | Illinois |
| Hybrid Design | |
| Hybrid Electronics Corporation | Florida |
| Hybrid Traffic | |
| Hybrid Web Agency | |
| HybridChart, Inc. | Arizona |
| Hybridge Imaging, LLC | Minnesota |
| Hybritech Innovations, Inc. | |
| HYCOR Biomedical, LLC | |
| HYCU, Inc. | Massachusetts |
| Hydden | |
| Hyde Park Angels | Illinois |