| Jasper Design | New York |
| Jasper Therapeutics, Inc. | |
| Jaspersoft | |
| JASS Software, LLC | Florida |
| Jassby, Inc. | New Hampshire |
| Jasteck, Inc. | New York |
| JAT Capital Management | |
| JatApp, LLC | Florida |
| Jatmon Technology Services, Inc. | Florida |
| Jauch Quartz America, Inc. | Washington |
| Jaunt Air Mobility, LLC | Texas |
| Java | California |
| Java Community Process | California |
| Java Developer Kitchens | New Jersey |
| Java Metroplex User's Group | Texas |
| Java2Days | California |
| Javara | |
| JavaWorld | Massachusetts |
| Javelin Biotech | Massachusetts |
| Javelin Communications, LLC | Wisconsin |
| Javelin Design, LLC | |
| Javelin Strategy & Research | Michigan |
| Javelin Venture Partners | California |
| Javelin Web and Media | |
| JaveLLin Solutions | South Carolina |
| Jax Media Design Group, LLC | |
| Jax Media Team | |
| Jaxtr | California |
| Jay Brokers, LLC | Georgia |
| Jay Consultants, LLC | Virginia |
| Jaya Biosciences, Inc. | |
| Jaydee Technologies, LLC | Oregon |
| Jayne Wayne Web Design & Branding | |
| JayStar Group, Inc. | Connecticut |
| Jayu Services, Inc. | |
| JAZ Design Company, Inc. | Pennsylvania |
| Jazel, LLC | California |
| Jazkarta | Massachusetts |
| Jazz Pharmaceuticals, Inc. | |
| Jazz Software, LLC | Vermont |
| JazzHR | Pennsylvania |
| JB Computer Sales & Service | New York |
| JB Developers, Inc. | California |
| JB Media Group, LLC | |
| JB Robert's, Inc. | New Jersey |
| JB Systems, LLC | Wisconsin |
| JB-Nets, LLC | Ohio |
| jBASE International, Inc. | California |
| JBC Software Development | North Carolina |
| JBI Software, Inc. | |