| Abbreviation | Definition |
|---|---|
| AOA | Arizona Orthopaedic Associates |
| AOA | Articles Of Association |
| AOA | Atlanta Ophthalmology Associates |
| AOB | Any Other Business |
| AOBC | American Outdoor Brands Corporation |
| AOBC | American Overseas Book Company |
| AOBI | American Oriental Bioengineering Inc |
| AOC | Ace Of Clubs |
| AOC | Admiral Overseas Corporation |
| AOC | American Operations Corporation |
| AOCC | American Overseas Clinics Corporation |
| AOCE | Alpha-Omega Change Engineering |
| AOCE | Arabian Oil Company of Energy |
| AOCG | Admissions Overseas Consulting Group |
| AOCI | Asia Optical Co Inc |
| AOCN | Administrative Operating Company Number |
| AOD | Advanced Optronic Devices |
| AOD | Assam Oil Division |
| AOF | Associated Overseas Florist |
| AOGC | Arkansas Oklahoma Gas Corporation |