| Boston Tea Party Group Limited |
| Both Sides Records Limited |
| Botho University |
| Bouygues SA |
| Boyd Holdco |
| Boyd Topco Limited |
| BRAC |
| BRAC Bank Limited |
| Bradford Culture Company Limited |
| Brait SE |
| Brandenburg University of Technology |
| Brandon Asociación Civil y Cultural |
| Breeze Systems |
| BrewDog PLC |
| Bright Scholar Education Holdings Limited |
| Brighter Sound Ltd |
| Bristol Energy |
| Bristol University Press |
| Britbo Holding AG |
| British Airways |
| British Columbia Investment Management Corporation (BCI) |
| British Film Institute (BFI) |
| British Gas |
| British Institute of Archaeology at Ankara |
| British International Schools in Kurdistan |