| Blueforce Development Corporation | Massachusetts |
| BlueGenesis.com | Florida |
| Bluegrain | Tennessee |
| Bluegrass Community and Technical College | Kentucky |
| Bluegrass Vascular Technologies, Inc. | Texas |
| BluegrassNet | Kentucky |
| BlueHalo | |
| bluehost, Inc. | Utah |
| Bluehour Digital Marketing | |
| Bluehouse Group | Vermont |
| Bluehouse Group | |
| BlueHubs | |
| Blueisle | Florida |
| BlueJay Advisory | |
| Bluejay Diagnostics, Inc. | Massachusetts |
| Bluejay Therapeutics | |
| BlueK | Washington |
| Bluekinetic | Arkansas |
| BlueLabs, Inc. | |
| Blueleaf Wealth, Inc. | Massachusetts |
| BlueLeap, Inc. | |
| Blueliner, LLC | New York |
| Bluelinks Agency | |
| BlueManDigital | |
| BlueMark Capital, LLC | Ohio |
| Bluemark, LLC | New York |
| BlueMatrix | |
| BlueMatrix Media | |
| Bluemill Digital, LLC | |
| BlueModus | |
| Bluenet | Florida |
| BlueNote Software | Texas |
| Bluenote, Inc. | |
| BluEnt | |
| BluEnt, LLC | Delaware |
| BlueOcean | California |
| BlueOcean Digital Agency | California |
| BlueOcean Global Technology | New York |
| BlueOrange | New York |
| BlueParrott | Massachusetts |
| Bluepen Software | Illinois |
| Blueplate.io | |
| Bluepoint Games, Inc. | Texas |
| BluePointUSA | California |
| BluePrint Advertising | |
| Blueprint Apps | |
| Blueprint Digital | |
| Blueprint Health | |
| Blueprint Interactive | |
| Blueprint Medicines | Massachusetts |