| Abbreviation | Definition |
|---|---|
| AAI | All Asia Internet |
| AAI | Amateur Astronomers Inc |
| AAI | American Atelier inc |
| AAI | American Atelier Incorporated |
| AAI | American Athletic Inc |
| AAI | American Athletic Incorporated |
| AAI | Assael Associates Inc |
| AAI | Auburn Armature Inc |
| AAIA | Alabama Aerospace Industry Association |
| AAIC | Aram Allied International Corporation |
| AAII | Ad Astra International Inc |
| AAIR | Allergy, Asthma, Immunology of Rochester, P.C. |
| AAIS | All American International Security |
| AAIS | American Association of Insurance Services |
| AAIS | Arizona Accounting and Information Systems |
| AAIS | Auto Asia Intelligence Service |
| AAL | Administrative Assistants Limited |
| AALA | Adventure Activities Licensing Authority |
| AALA | American Automotive Leasing Association |
| AALC | African American Labor Center |