| ID | Name | Type |
|---|---|---|
| #22426 | Adrian Samm | + |
| #416 | Adrian Seymour | + |
| #417 | Adrian Sherwin | + |
| #418 | Adrian Singh | + |
| #419 | Adrian Skilling | + |
| #420 | Adrian Sumera | + |
| #421 | Adrian Tucker | + |
| #16041 | Adrian Wagner | + |
| #422 | Adriano | Z |
| #423 | Adriano Valle | + |
| #19122 | Adrienne Nunn | + |
| #424 | Adsoft | Z |
| #425 | Adsoft Software Ltd | Z |
| #426 | Advance Software Promotions Ltd | Z |
| #427 | Advanced Adventure Creations | Z |
| #428 | Advanced Computer Entertainment | Z |
| #429 | Advanced Computer Exotic | Z |
| #430 | Advanced Digital Systems Ltd | Z |
| #431 | Advanced Memory Systems Ltd | Z |
| #17029 | Adventure Exchange Club | U |