| J and C Ranch Web Design | Texas |
| J Costa Consulting, LLC | Florida |
| J Flowers Enterprises, Inc. | Georgia |
| J R Thompson Company, LLC | |
| J Street Technology, Inc. | Washington |
| J T Smith & Associates | Illinois |
| J Wild Marketing, LLC | |
| J&C Company | Nebraska |
| J&D Computers, Inc. | Iowa |
| J&F Software | |
| J&J Communications | Georgia |
| J&J Electronics of Appleton, Inc. | Wisconsin |
| J&L Marketing | |
| J&R Computer Associates, Inc. | Illinois |
| J's Communications, Inc. | California |
| J-Curve Technologies | Arizona |
| J-STAR Research, Inc. | New Jersey |
| J-Tech Communications | Montana |
| J-Tech, Inc. | California |
| J-Tron, LLC | New Jersey |
| J. Alex Halderman | |
| J. Arthur & Co. | |
| J. Booth Company | North Carolina |
| J. Colin Computing Services, Inc. | |
| J. Craig Venter Institute | |
| J. Knutson & Associates, Inc. | Minnesota |
| J. Markowitz Consultants | Illinois |
| J.A. Woollam Co. | Nebraska |
| j.dubbs design | California |
| J.M. Fox Associates, Inc. | Pennsylvania |
| J.P. Instruments, Inc. | California |
| J1S Web | Michigan |
| J2 Ventures | |
| J29 Creative Group | |
| J2Games.com | Georgia |
| J2H Digital | |
| J4 Web Services | Minnesota |
| JA Media, LLC | |
| Jaan Biotherapeutics, Inc. | |
| JAB Software, LLC | |
| Jabez Biosciences | |
| JabFab, Inc. | |
| Jabra Enhance | Minnesota |
| JAC Manufacturing, Inc. | Wisconsin |
| jācapps | Michigan |
| Jace Biomedical, Inc. | |
| Jace Sheppard, Vermont Tech Guy, LLC | Vermont |
| Jack Boring's, Inc. | Florida |
| Jack Frost Design, Inc. | California |
| Jack Henry & Associates, Inc. | Missouri |