| House of Giants | Colorado |
| House of Kaizen | New York |
| Housecall Pro | Colorado |
| Househappy, Inc. | |
| Housepedia | Georgia |
| Housey Pharmaceutical Research Laboratories | |
| Houston .NET Users Group | Texas |
| Houston Angel Network | Texas |
| Houston Area Apple Users' Group | Texas |
| Houston Area League of PC Users, Inc. | Texas |
| Houston Baptist University | Texas |
| Houston Bionics | California |
| Houston Christian University | Texas |
| Houston Communications, Inc. | Texas |
| Houston Dynamic Displays | Texas |
| Houston Exponential | Texas |
| Houston Financial Center | |
| Houston Hackathon | Texas |
| Houston Healthspan Innovation Group | Texas |
| Houston IT Developers, LLC | |
| Houston Medical Robotics, Inc. | |
| Houston POS | Texas |
| Houston SEO Plus | |
| Houston Small Business Marketing | Texas |
| Houston Ventures | Texas |
| Houston Wire and Cable | Texas |
| Houston's Host | Texas |
| Houzz, Inc. | |
| Hovana | |
| Hovercraft | |
| Hoverfly Technologies | Florida |
| HoverStat Technologies, Inc. | |
| HOW Design Live | |
| How Funworks, LLC | |
| How to Internet Your Business | California |
| How To Register an LLC | |
| How To Start an LLC | |
| How to Start an LLC.org | |
| Howard College | Texas |
| Howard Development & Consulting, LLC | |
| Howard Instruments, Inc. | Alabama |
| Howard M Haberman Associates, Inc. | California |
| Howard Payne University | Texas |
| Howard Technology Solutions | Mississippi |
| Howard, Day & Associates, Inc. | Georgia |
| HowardSoft | California |
| Howdy | Texas |
| Howell Computing, Inc. | Ohio |
| Howell Creative Group | Virginia |
| Howell Instruments, Inc. | Texas |