| ID | Name | Type |
|---|---|---|
| #16519 | Bartek Dramczyk | + |
| #1558 | Bartle Electronics | Z |
| #1559 | Bartlo-Miej Melnicki | + |
| #1560 | Bartolome Roman Anton | + |
| #1561 | Base Binaria | ? |
| #1562 | Base Two Software | Z |
| #21308 | Basic Concepts | P |
| #20987 | Basic Games | P |
| #1563 | Basic Software | Z |
| #1564 | Basic Software Services | Z |
| #1565 | Basicare Micro System | Z |
| #1566 | Basicare Microsystem Ltd | Z |
| #17067 | Basiga Electronics | R |
| #1567 | Basil | + |
| #20069 | Basil Blackwell Ltd | Z |
| #1568 | Basil N.A. Lankester | + |
| #1569 | Bass-On | Z |
| #19258 | Bastard | - |
| #1570 | Bastec Software | Z |
| #1571 | Bastei Lubbe | ? |