| Brookstone Venture Capital | Arizona |
| Brookwood | Pennsylvania |
| Broom Ventures | |
| BroShield | Maryland |
| Bross Group | Colorado |
| BrotherToners.com | New Mexico |
| Broward College | Florida |
| Brown Art Corporation | Michigan |
| Brown Bag Marketing, Inc. | |
| Brown Bear Creative | Connecticut |
| Brown Bear Software | Alaska |
| Brown Box Branding | |
| Brown Brothers Harriman | |
| Brown Computer Company, | North Carolina |
| Brown Entrepreneurship Program | |
| Brown University Applied Mathematics | Rhode Island |
| Brown University Department of Computer Science | Rhode Island |
| Brown University Department of Mathematics | Rhode Island |
| Brown's Medical Imaging | |
| BrownRice Marketing | |
| Brownstone Marketing Solutions | Alabama |
| Browser Use | |
| Browserbase | |
| BrowserCat | |
| Browserling, Inc. | California |
| Browshot | California |
| Brsbane Consulting Group | New York |
| BRT Labs | |
| Bruce Clay | California |
| Bruce Clay, Inc. | |
| Bruce Jones Design, Inc. | Massachusetts |
| Bruder Healthcare Company, LLC | Georgia |
| Bruker Corporation | Massachusetts |
| Bruker Spatial Genomics, Inc. | |
| Brumalab | |
| Brunnerworks | Pennsylvania |
| Bruno Marketing and Design | Florida |
| Brush Mountain Data Center | Virginia |
| Brusheezy | |
| Brushfire | Texas |
| Bryan College | Tennessee |
| Bryan Health | |
| Bryan Medical | |
| Bryan Research & Engineering, Inc. | Texas |
| Bryan University | Arizona |
| Bryant & Stratton College | New York |
| Bryant Digital | |
| Bryant PC Solutions | Texas |
| Bryant University | Rhode Island |
| Bryant Web Consulting, LLC | Oklahoma |