| ID | Name | Type |
|---|---|---|
| #21113 | Amebatron Software | P |
| #23182 | Amedeo Bozzoni | + |
| #19751 | American Action AB | ? |
| #811 | American Broadcasting Company | Z |
| #812 | American Greetings | Z |
| #813 | American Micro Products Inc | Z |
| #814 | American Technos | Z |
| #815 | Americana Software Ltd | P |
| #23175 | Amerigo de Cesari | + |
| #816 | Amersham Software Ltd | Z |
| #817 | Ametist | ? |
| #818 | Amfas Computer Software Ltd | Z |
| #819 | Amigo | ? |
| #18837 | Amigo Trade Group | P |
| #22968 | Amikosoft | P |
| #820 | Amilton | ? |
| #19021 | Amir [Bearsden Primary 2019] | + |
| #821 | Amisin | @ |
| #822 | Amoeba Software | Z |
| #16050 | Amon Cohen | + |