| Abbreviation | Definition |
|---|---|
| AEPS | Alternative Electric Power Systems |
| AEPS | American Electric Power Service Corporation |
| AEPS | Aviation Employee Placement Service |
| AERA | Automobile Engine Repairers Association |
| AERC | American Education Research Corporation, Inc. |
| AERG | Automotive Elite Relief Group Inc. |
| AERI | American Electronic Resource, Inc. |
| AERL | Avco Everett Research Laboratory |
| AERN | Alabama Entrepreneurial Research Network |
| AERN | Automotive Emissions Repair Network |
| AEROVESA | AEROnáutica VErtical, S. A. |
| AES | Advanced Energy Systems |
| AES | American Education Services |
| AES | American Encryption Service |
| AES | Antique Electronics Supply |
| AES | Automotive Engine Specialties |
| AESA | Astilleros Espa??oles, S. A. |
| AESA | Astilleros Españoles, S. A. |
| AESI | Action Equipment Solutions Inc |
| AESI | Albin Engineering Services Inc |