| 5j Design, LLC | South Dakota |
| 5MetaCom | Indiana |
| 5NINES, LLC | Wisconsin |
| 5pm | North Carolina |
| 5Points Creative | |
| 5Star Bank | |
| 5StarBDM | |
| 5TEN, LLC | |
| 5thColumn, LLC | Illinois |
| 5x5 Technologies, Inc. | Florida |
| 6 River Systems, LLC | Massachusetts |
| 60 Degrees Pharmaceuticals | District of Columbia |
| 603 Technology Services, LLC | New Hampshire |
| 605.tv | New York |
| 60AT6 | Washington |
| 60SecondMarketer | Georgia |
| 645 Ventures | New York |
| 648 Group | California |
| 64x Bio | California |
| 66 degrees | Colorado |
| 6Ave Electronics | New Jersey |
| 6Connex | California |
| 6DOS, LLC | |
| 6G Web Design | New Mexico |
| 6K, Inc. | |
| 6scan.com | Florida |
| 6sense | California |
| 6StringMedia, Inc. | California |
| 6th Street Consulting | California |
| 7 Generation Games | |
| 7 Hills Pharma, Inc. | Texas |
| 7 Layer Solutions, Inc. | Illinois |
| 7 Level Telecommunications, LLC | Louisiana |
| 7 Speed Reading | Nevada |
| 7-128 Software, LLC | Massachusetts |
| 700Credit, LLC | |
| 702 Communications | North Dakota |
| 702 Pros, LLC | Nevada |
| 705 Federal Credit Union | |
| 713 IT Support | Texas |
| 720 Worldwide, Inc. | Illinois |
| 720media, LLC | Colorado |
| 729 Solutions | |
| 75Bit, Inc. | |
| 76Bio, Inc. | |
| 775 Technology, LLC | Nevada |
| 7B Software | North Carolina |
| 7signal Solutions, Inc. | Ohio |
| 7strategy, LLC | Colorado |
| 7strategy, LLC | |