| AAS | Aging and Adult Services |
|---|---|
| AAS | Alliance of AIDS Services (skr.) |
| ABS | American Breeders Services |
| ACS | Academic Computing Services |
| ADS | Active Directory Services |
| ADS | Adult Day Services |
| ALTAMIRA | skrátené označenie spoločnosti Altamira Financial Services Limited |
| AMD | Advanced Micro Devices (skr.) |
| AMS | Army Medical Services (skr.) |
| AVL | Agnes Vices Legati (skr.) |