| ID | Name | Type |
|---|---|---|
| #823 | Amos Bianchi | ? |
| #16004 | Ampal Computer Services | P |
| #824 | Ampalsoft | Z |
| #825 | Amplicon Micro System Ltd | Z |
| #21402 | Amrit Mann | + |
| #16051 | Amrit Surya | + |
| #19022 | Amrit [Bearsden Primary 2019] | + |
| #18302 | Amsat-UK Software Service | P |
| #826 | Amst | ? |
| #827 | Amstrad | Z |
| #828 | Amstrad PLC | Z |
| #21016 | Amílcar | + |
| #830 | An Walgreen | ? |
| #831 | Ana M. Noeda Bautista | + |
| #832 | Anabasis Investments N.V. | Z |
| #21044 | Anabela Miranda da Silva | + |
| #833 | Anad | + |
| #17039 | Analytic Engineering | R |
| #834 | Anarchia | ? |
| #835 | Anarchy Soft | Z |