| Blockchain Founders Capital Management GmbH | |
| Blockchain Institute of Technology | Florida |
| Blockchain Laboratories | Wyoming |
| Blockchain Studioz | California |
| Blockchain Tech Corporation | New York |
| Blockchains, Inc. | Nevada |
| BlockChyp, Inc. | Utah |
| BlockCypher, Inc. | California |
| Blockdaemon | New York |
| Blockedge Technologies, Inc. | |
| Blocker Group, LLC | Florida |
| Blockgraph | New York |
| BlockHead Ventures, Inc. | Virginia |
| BlockitNow, Inc. | |
| BlockJoy, Inc. | |
| Blocklead Venture Studio, LLC | |
| BlockMaster Electronics | Illinois |
| Blocknative | California |
| Blockroute Technologies, LLC | |
| BlockSafe Technologies, Inc. | New Jersey |
| BlocksGenie Technologies | |
| BlockSpaces | |
| BlockSurvey | Delaware |
| Blocktech Brew | |
| Blockthrough, Inc. | |
| BlockTrace, LLC | Texas |
| Blocktricity Capital | Virginia |
| Blockus | |
| BlockVenture Coalition | Florida |
| BlockVue, Inc. | |
| Blockworks Advisors, LLC | New York |
| BlocPower | New York |
| Blog Marketing Academy | Florida |
| Blogger.com | California |
| BlogSEO, Inc. | |
| Bloguin, Inc. | |
| Blonde Guy, LLC | California |
| Blonder Tongue Laboratories, Inc. | New Jersey |
| Blonk Group | California |
| Bloo Solutions, Inc. | Massachusetts |
| Bloodhound Partners, LLC | |
| BloodSolutions, LLC | Texas |
| Bloodworks Northwest | |
| Bloofusion | California |
| Bloom Ads | |
| Bloom AI | North Carolina |
| Bloom Credit | |
| Bloom Energy | |
| Bloom Growth | |
| Bloom Institute of Technology | California |