| Abbreviation | Definition |
|---|---|
| A | American |
| AAA | the Agricultural Adjustment Act Administration |
| AAA | the Agricultural Adjustment Act & Administration |
| AABUS | As Agreed Between User and Supplier |
| AAMPS | Arizona Association of Medical Products Suppliers |
| AB | Amphenol- Borg |
| AB | Amphenol-Borg |
| AC | AVX Corporation |
| AD | AMD Corporation |
| AH | Alpha Industries |
| AI | America, Inc. |
| AI | America, Incorporated |
| AIMS | Amusement Industry Manufacturers and Suppliers |
| AL | Atlas |
| AM | American Machine and Foundry |
| AN | Autonetics |
| ANSP | Air Navigation Service Provider |
| AO | Automatic Metal Products |
| AP | AMO, Inc. |
| AP | AMO, Incorporated |