| Abbreviation | Definition |
|---|---|
| ASQ | Alpha System Qualification |
| ASQ | American Society For Quality |
| ASR | Adult Signature Required |
| ASRS | Automatic Storage and Retrieval System |
| ASS | After Sales Support |
| Assn. | Association |
| ASSOC | Associates |
| ASU | Advanced Security Units |
| ASWG | Ancillary Services Working Group |
| ASWG | Applicant Selection Working Group |
| ASWG | Application Selection Working Group |
| ASWG | ATM Security Working Group |
| ATA | Agrarische Termijnmarkt Amsterdam |
| ATA | Any Time Anywhere |
| ATAP | Assistive Technology Access Partnership |
| ATB | Association Tripartite Bourses |
| ATC | Adaptive Team Collaboration |
| ATC | Advanced Technology Centre |
| ATC | American Tobacco Company |
| ATC | American Tractor Corporation |