| Abbreviation | Definition |
|---|---|
| AAUK | Alliance Automotive UK |
| AAVC | Anglo American Varnish Company |
| AAVS | Advanced Audio Visual Solutions |
| AAW | Aces Asylum World |
| AAWC | Alexandria Advantage Warranty Company |
| AAWK | A & A Automotive and Wrecker Service |
| AAWO | Arthur Andersen Worldwide Organization |
| AAWS | Advanced Australian Workplace Solutions |
| AB | AllianceBernstein, L.P. |
| AB | Appointment Book |
| AB | Augusta Bell |
| AB | Avatars Banners |
| ABA | Accountants By Accountants |
| ABA | Anthony Barber Associates, LTD. |
| ABA | Asian Business Association |
| ABB | Asea Brown Boveri |
| ABBC | Allatoona Buccaneers Broadcast Company |
| ABBI | American Bucking Bull Inc |
| ABBR | American Beauty & Barber Registry |
| ABBS | Atlanta Barber and Beauty Supply |