| ID | Name | Type |
|---|---|---|
| #1424 | Ayala Soft | Z |
| #1425 | Ayland | ? |
| #21135 | Aylesbury Software Cooperative | P |
| #1426 | Aymeric du Peloux | ? |
| #1427 | Ayyaz Mahmood | + |
| #1428 | Azed Software | Z |
| #19028 | Azimov | - |
| #22361 | Azimut Soft | P |
| #20590 | Aziz Houmani | + |
| #1429 | Aztec Software | Z |
| #1430 | Azzimandius Soft | - |
| #1431 | Azzurro Rock Pub | Z |
| #1432 | B. Baker | + |
| #1433 | B. Bartis | + |
| #20129 | B. Billups | + |
| #1434 | B. Burdett | + |
| #1435 | B. Cheprasov | - |
| #1436 | B. Debever | + |
| #1437 | B. Dollery | + |
| #1438 | B. Dolzani | + |