| Boston Technology Corporation | Massachusetts |
| Boston UniSoft Technologies, Inc. | |
| Boston University Bioinformatics | Massachusetts |
| Boston University Department of Computer Science | Massachusetts |
| Boston University Department of Electrical and Computer Engineering | Massachusetts |
| Boston University Department of Mathematics and Statistics | Massachusetts |
| Boston University Laboratory for Biocomputing and Informatics | Massachusetts |
| Boston User Groups | Massachusetts |
| Boston Web Design | Massachusetts |
| Boston Web Marketing | |
| BostonCHI | Massachusetts |
| BostonGene Corporation | Massachusetts |
| BostonLogix Software, Inc. | Massachusetts |
| Bot Auto | |
| Bot Image, Inc. | Nebraska |
| Bot Productions | Washington |
| Botanalytics | California |
| BotCIty | |
| Botguru.net | Florida |
| Bothhand USA | Massachusetts |
| BothWorlds Software, Inc. | Florida |
| Botkeeper | Massachusetts |
| Botmakers, LLC | California |
| Botminds.ai | Washington |
| Botnay Bay Technology | New Hampshire |
| Botonomy, LLC | Pennsylvania |
| Botowski AI | Texas |
| BotPenguin | Illinois |
| Botsheets, Inc. | |
| Bottega University | Utah |
| Bottle Rocket | |
| Bottle Rocket Creative | |
| Bottle Rocket Media | |
| Bottom Line Software | California |
| Bottom Line Telecommunications, Inc. | Connecticut |
| Bottomline Technologies, Inc. | New Hampshire |
| Bottr | |
| Botworx.ai | California |
| Boulder Business Intelligence Brain Trust | Colorado |
| Boulder Care, Inc. | Colorado |
| Boulder Digital Arts | |
| Boulder Imaging | Colorado |
| Boulder Linux Users Group | Colorado |
| Boulder Phone | Colorado |
| Boulder SEO Marketing | |
| Boulder StartupWeek | Colorado |
| Boulder Ventures Ltd | Colorado |
| Boulevard Labs, Inc. | |
| Bounce Imaging | |
| Bounce Multimedia | Texas |