| Howell Liberatore & Associates, Inc. | |
| Howerton+White | |
| Howler AI | |
| Howman Engineering | New Jersey |
| Hownd, Inc. | Arizona |
| Howso | |
| HOX Therapeutics | |
| Hoxton Ventures | |
| Hoyack, LLC | |
| Hoylu | Washington |
| Hoyt Electrical Instrument Works, Inc. | New Hampshire |
| Hozio, Inc. | New York |
| HP Development Company, L.P. | California |
| HP Infosystem, LLC | New Jersey |
| HP Solutions, Inc. | New Jersey |
| HPCC Systems | Georgia |
| HPCwire | California |
| HPM Consulting, LLC | |
| HqO | Massachusetts |
| HQSoftware | New York |
| HQSuite, LLC | Ohio |
| HQTek Electronics and Supplies, L.P. | Texas |
| HR Acuity | New Jersey |
| HR Cloud | California |
| HR Done Right, Inc. | California |
| HR Pipeline, LLC | Colorado |
| HR Solutions | Louisiana |
| HR Tech, LLC | |
| HR Technologies | California |
| HRBRain, Inc. | |
| HRD Software, LLC | Florida |
| HRGN | Massachusetts |
| HRichnetworks, LLC | |
| HRL Laboratories, LLC | |
| HRmango | Utah |
| HRO Today | Pennsylvania |
| hrQ | Florida |
| HRSoft | Colorado |
| HRT Solutions | Pennsylvania |
| HRU Tech | Michigan |
| HRweb Software, LLC | North Carolina |
| HS Higher Site | |
| HS Plugins | Ohio |
| HSC Chemistry | Texas |
| HSH Associates | Nevada |
| HSI | Texas |
| Hsiri Therapeutics | |
| HSP Group, Inc. | |
| HSQ Technology | California |
| HST Technologies, Inc. | |