| Hatch Early Learning | |
| Hatch I.T. | Virginia |
| Hatchet Marketing | |
| HatchWorks, Inc. | Georgia |
| Hatfield Media | |
| Hatom, LLC | |
| Hatrack Information Systems | New York |
| Hats Off Solutions | |
| Hattan Media, LLC | New York |
| Hatteras Venture Partners | North Carolina |
| Hatzimemos Libby Holdings, LLC | New York |
| Haug Communications, Inc. | Kansas |
| Haul | California |
| Hauler Hero | |
| HaulPay | |
| Hauppauge, Inc. | New York |
| Hauptman-Woodward Medical Research Institute | New York |
| Haus | California |
| Haus Analytics, Inc. | |
| Haus Haus Design | |
| Hausman Design | California |
| hav.Software | Florida |
| Havah Therapeutics, Inc. | |
| HAVE, Inc. | New York |
| Haveaname, LLC | California |
| Haven Energy | |
| Havensight Consulting Group, LLC | Illinois |
| Haverford College Department of Computer Science | Pennsylvania |
| Haverford College Department of Mathematics and Statistics | Pennsylvania |
| Haverford Systems, Inc. | Pennsylvania |
| Haverly Systems, Inc. | New Jersey |
| Havihi Digital, Inc. | |
| Haviland Telephone Company | Kansas |
| Havit | |
| Havoc Shield, Inc. | Illinois |
| Hawaii Characters, Inc. | |
| Hawk iSolutions Group, Inc. | Missouri |
| HAWK Network Defense, Inc. | Texas |
| Hawke media | |
| Hawkes Learning | |
| HawkEye 360 | Virginia |
| Hawkeye Bio | California |
| HawkFeather Web Design | Washington |
| Hawking Technologies, Inc. | California |
| HawkSoft, Inc. | Oregon |
| HawksPoint IT | Florida |
| Hawthorne IT | California |
| Haxee Ventures, LLC | Utah |
| Haxways, Inc. | |
| Hayat Consulting Solutions, LLC | |