| Boss Project | |
| Bossa Nova Robotics | California |
| Bosscan.com | Massachusetts |
| Bostal, LLC | |
| Boster Biological Technology | California |
| Boston Applied Technologies, Inc. | Massachusetts |
| Boston Area Computer Users Group | Massachusetts |
| Boston Area SAS Users Group | Massachusetts |
| Boston Atlantic Technology, Inc. | Massachusetts |
| Boston Baptist College | Massachusetts |
| Boston Bioprocess | |
| Boston BioProducts | |
| Boston Biotech Clinical Research | |
| Boston Cell Standards | Massachusetts |
| Boston Clinical Trials | Massachusetts |
| Boston College Computer Science Department | Massachusetts |
| Boston College Math Department | Massachusetts |
| Boston Computing Network | Massachusetts |
| Boston Consulting Group | Massachusetts |
| Boston Creative Pro Users Group | Massachusetts |
| Boston Data Mining | Massachusetts |
| Boston Digital | Massachusetts |
| Boston Dynamics | Massachusetts |
| Boston Easy Biotech, Inc. | |
| Boston Growth Marketing, LLC | |
| Boston Harbor Angels | Massachusetts |
| Boston Heart Diagnostics Corporation | Massachusetts |
| Boston HelpDesk | Massachusetts |
| Boston Immune Technologies & Therapeutics | |
| Boston Innovators Group | Massachusetts |
| Boston Institute of Biotechnology, LLC | Massachusetts |
| Boston Institute of Finance | |
| Boston Landing | Massachusetts |
| Boston Linux & Unix Users Group | Massachusetts |
| Boston Medical Products, Inc. | |
| Boston Millennia Partners | |
| Boston Network Users Group | Massachusetts |
| Boston Oncology | Massachusetts |
| Boston Scientific Corporation | Massachusetts |
| Boston Seed Capital | Massachusetts |
| Boston Semi Equipment | Massachusetts |
| Boston SEO Company | |
| Boston SEO Marketing Service | |
| Boston SEO Services | Massachusetts |
| Boston Software | Massachusetts |
| Boston Software Forensics | Massachusetts |
| Boston Software Systems | Massachusetts |
| Boston Startups Guide | Massachusetts |
| Boston Systems & Solutions | Massachusetts |
| Boston Technologies, Inc. | New Jersey |