| HexaGroup | Texas |
| HexaHive | |
| Hexanika, Inc. | |
| HexaTech | California |
| Hexaview Technologies, Inc. | New York |
| Hexaview Technologies, Inc. | |
| Hexawise | Texas |
| Hexcel Corporation | |
| Hexcode Marketing | |
| Hexistor International, Inc. | Ohio |
| Hexomatic | |
| Hexometer | Florida |
| Hexowatch | |
| Hexure | Colorado |
| Hey DAN | Connecticut |
| Hey Nova, Inc. | |
| heyAIworld | |
| Heycolllab | Nevada |
| Heyday | California |
| Heydayv Design | Wisconsin |
| HeyForm, Inc. | Wyoming |
| HeyFriday | California |
| HeyGen | California |
| HeyGoTo Marketing & Conversions | |
| Heykaila Media, Inc. | |
| Heynow Software | New Hampshire |
| HF-Solution, LLC | |
| HG Insights | |
| HG Ventures | |
| HGSI | Pennsylvania |
| hh2 Cloud Services | Utah |
| HHVM | California |
| Hi Auto | |
| Hi Interactive | |
| Hi Mark Capital | South Carolina |
| Hi Marley | Massachusetts |
| HI-Bio | California |
| Hi-Def Web Solutions | Texas |
| Hi-Res Media Group | |
| Hi-Tech | Michigan |
| Hi-Tech Computer Rental | California |
| Hi-Tech Electronic Manufacturing, Inc. | California |
| Hi-Tech Electronic Services | California |
| Hi-Tech Electronics, Inc. | New York |
| Hi-Tech Software | Florida |
| Hi-Tech Solutions, Inc. | Illinois |
| Hi-Tech Systems Engineering, Inc. | Michigan |
| Hi-Techniques, Inc. | Wisconsin |
| HI-TEK Electronics, Inc. | Massachusetts |
| hi5, Inc. | California |