| Johnson C. Smith University Computer Science/Information Systems | North Carolina |
| Johnson College | Pennsylvania |
| Johnson Financial Group | |
| Johnson Services, LLC | |
| Johnson University | Tennessee |
| Johnston Technologies, Inc. | Tennessee |
| Join Cabinet, Inc. | New York |
| Join, Inc. | California |
| Join.To.IT, LLC | |
| Join2day.com | New York |
| Joink, LLC | Indiana |
| JOINN Biologics | California |
| Joint Venture Silicon Valley | California |
| Jointechlabs, Inc. | Florida |
| JOKR | New York |
| Jolata, Inc. | |
| Joliet Junior College | Illinois |
| Jolly | Texas |
| Jolly Technologies, Inc. | California |
| Jolt | Utah |
| Jomar Systems | Pennsylvania |
| JOMI, LLC | |
| Jon Peddie Research | |
| Jon Raasch | Oregon |
| Jonah Digital Agency | Texas |
| Jonas Chorum | Arizona |
| Jonas Fitness, Inc. | Texas |
| Jonas Marketing, LLC | |
| Jonathan Danylko | Ohio |
| Jonathan Hedley | Washington |
| Jonathan Spen | |
| Jones | |
| Jones College | Mississippi |
| Jones Lang LaSalle IP, Inc. | Illinois |
| Jonroc, LLC | |
| Jooble | |
| JooHost.com | Arizona |
| Joomag, Inc. | California |
| Joomla! | New York |
| Joomla! Showroom | Illinois |
| Joomla! User Group Dallas / Fort Worth | Texas |
| Joomlashack, LLC | Vermont |
| Jordan Company, L.P. | New York |
| Jordan Crown, LLC | |
| JordiLabs, LLC | |
| Jorna Therapeutics, Inc. | |
| Joro | California |
| Joseph Dolson Accessible Web Design | Minnesota |
| Joseph Electronics | Illinois |
| Joseph Manning Designs | |