| Hang Wire | Washington |
| HanGenix Solutions, Inc. | |
| Hankinsoft Development, Inc. | |
| Hanley Innovations | Florida |
| Hanlon | |
| Hanna Collaborative, LLC | |
| Hanna Wallach | |
| Hannah Grey | Colorado |
| Hannibal LaGrange University | Missouri |
| Hannon Hill | Georgia |
| Hanover College Computer Science | Indiana |
| Hanover College Mathematics | Indiana |
| HANS Scientifc, LLC | |
| Hansel Medical, Inc. | |
| Hansen Belyea | Washington |
| Hanser & Associates | |
| Hanson Information Systems, Inc. | Illinois |
| Hanson, Inc. | Ohio |
| Hantronix, Inc. | California |
| Hanu Software Solutions, Inc. | New Jersey |
| Hanzo | Oregon |
| Hapax | Texas |
| HAPI | Arizona |
| Hapi Cloud | Florida |
| HAPPE Spine | Michigan |
| Happier, Inc. | |
| Happify, Inc. | |
| Happiness Tech, LLC | Vermont |
| Happy Cabbage Analytics, Inc. | |
| Happy Cog | Pennsylvania |
| Happy Dog | Minnesota |
| Happy Dog Media Group, LLC | |
| Happy Grasshopper | Florida |
| Happy Hamster Computers | Oregon |
| Happy Hired, Inc. | Arizona |
| Happy Jack Software, Inc. | Wyoming |
| Happy Money, Inc. | |
| Happy Toil, LLC | |
| HappyAR, LLC | Georgia |
| HappyChap Creative | |
| HappyCo | California |
| HappyFox, Inc. | California |
| Hapten Sciences | Tennessee |
| Haqean, Inc. | New York |
| Hara Partners | New York |
| Harbinger Health | Massachusetts |
| Harbinger Marketing, LLC | |
| Harbinger Motors, Inc. | |
| Harbinger Ventures | Colorado |
| Harbor | Florida |