| ID | Name | Type |
|---|---|---|
| #1805 | Bodkin Software | Z |
| #18456 | Bodo Wenzel | + |
| #1807 | Body's | ? |
| #16672 | Boekhandel Scholtens | Z |
| #18864 | Bogdan Kochan | + |
| #1808 | Bogdanov Andrey | + |
| #1809 | Bogdanov V.G. | ? |
| #1810 | Bogie | ? |
| #23078 | Boguelin | + |
| #1811 | Boguslaw Juza | + |
| #1812 | Boguslaw Wozniak | + |
| #1813 | Bohumil Pešek | + |
| #20817 | Bohuslav Siekierka | + |
| #20073 | Boldfield Computing Ltd | Z |
| #1815 | Boldie Software | Z |
| #1816 | Bolivar di Griz | + |
| #1817 | Bolsoftware Communications Ltd | Z |
| #1818 | Bonaventura Di Bello | + |
| #1819 | Bond | ? |
| #1820 | Bond Systems | Z |