| ID | Name | Type |
|---|---|---|
| #799 | Amadeus Voxon | + |
| #800 | Amadeus Wakson | + |
| #801 | Amador Tenreiro | + |
| #802 | Amaltiya Incorporated Software | Z |
| #21099 | Amateur Radio | P |
| #19823 | Amaweks | - |
| #803 | Amazing Games [1] | Z |
| #804 | Amazing Games [2] | Z |
| #805 | Amazing Software Making | Z |
| #806 | Amazon Systems | Z |
| #807 | Amba Software | Z |
| #808 | Amber Controls Ltd | Z |
| #809 | Amblin Entertainment Inc | Z |
| #810 | Ambrose Clarke | + |
| #22663 | Ambrosio Wang | + |
| #21113 | Amebatron Software | P |
| #23182 | Amedeo Bozzoni | + |
| #19751 | American Action AB | ? |
| #811 | American Broadcasting Company | Z |
| #812 | American Greetings | Z |