| ID | Name | Type |
|---|---|---|
| #1912 | Bridge Software | Z |
| #1913 | Bridgebrook Intek | ? |
| #19848 | Briefer | - |
| #16512 | Brightentayle | - |
| #17085 | Brightsoft Computers | S |
| #1914 | Brimardon Computer Racing Service | Z |
| #17086 | BritSales | H |
| #1915 | Britannia Software Ltd | P |
| #21351 | British Gas | P |
| #1916 | British Heritage Philatelics | Z |
| #1917 | British Lion Film Corporation | Z |
| #1918 | British Micro | Z |
| #1919 | British Soft S.A. | Z |
| #1920 | British Sporting Services | Z |
| #1921 | British Telecom | P |
| #1922 | Britt Allcroft [Thomas] Ltd | Z |
| #15787 | BroadSystem | Z |
| #1923 | Broadcast Services | Z |
| #1924 | Broadsoft | Z |
| #1925 | Broadway Video | Z |