| ID | Name | Type |
|---|---|---|
| #18490 | Blerkotronic Software | Z |
| #1752 | Blindmouse Ltd | Z |
| #1753 | Blitter Animations | Z |
| #1754 | Block-Byte Computing | Z |
| #19773 | Blood | - |
| #18158 | BloodBaz | - |
| #1755 | Bloody Skull Entertainment | Z |
| #1756 | Blue Alpha Electronics | Z |
| #19485 | Blue Bilby | P |
| #17080 | Blue Chip Computers | S |
| #20844 | Blue Monster | - |
| #1757 | Blue Ribbon Software | Z |
| #1758 | Blue Text | Z |
| #1759 | Blue Turtle | Z |
| #1760 | Bluff Relay | ? |
| #1761 | Bluston | ? |
| #20920 | Bo Garstad | + |
| #1762 | Bo Jangeborg | + |
| #1763 | Bo Leuf | ? |
| #1764 | BoTond | ? |