| Bloom Science, Inc. | California |
| Bloomberg - Technology | New York |
| Bloomberg Second Measure, LLC | New York |
| Bloomerang | Indiana |
| Bloomfield Capital | Michigan |
| Bloomfield College | New Jersey |
| Bloomfield Knoble | Texas |
| Bloomfield Robotics | Pennsylvania |
| Bloomfilter | Ohio |
| Bloomfire | Texas |
| Blooming Footprint | |
| Blooming Health | |
| Bloomingdale Communications | Michigan |
| Bloomreach, Inc. | California |
| BloomText | |
| Bloomtri | |
| Bloomy Technologies | |
| Bloq, Inc. | Illinois |
| Bloqcube, Inc. | New Jersey |
| Blossom Financial Technologies, LLC | |
| Blossom IO, Inc. | California |
| Blossom Street Ventures | Texas |
| BlossomHill Therapeutics, Inc. | |
| Blotout | |
| Blough Tech, Inc. | Georgia |
| Bloxbytes | Illinois |
| BLOXR Solutions | |
| BLR Bio | |
| Blu AI | New York |
| Blu Bambu | |
| Blu Chip SEO, LLC | |
| Blu Echo Design | California |
| BLU Products | Florida |
| blu27 Group, LLC | |
| BluAgent Technologies, Inc. | |
| Blubee Media, LLC | New York |
| Blubrry Podcasting | |
| Blue Acorn iCi | |
| Blue Apple Technologies, LLC | Ohio |
| Blue Arch Technology Service, LLC | Oregon |
| Blue Archer | Pennsylvania |
| Blue Aspen Marketing | |
| Blue Atlas Interactive | Maryland |
| Blue Atlas Marketing | |
| Blue Banana | |
| Blue Basin Capital Management, LLC | |
| Blue Bear Capital | |
| Blue Bear Software | California |
| Blue Bee Web | |
| Blue Bird Corporation | Georgia |