| Abbreviation | Definition |
|---|---|
| AEGIS | Associated Electric Gas Insurance Services |
| AEI | Addington Enterprises Inc |
| AEI | Aeronautical Engineers Inc |
| AEI | Affiliated Engineers Inc |
| AEI | Aggregates Equipment Inc |
| AEI | Air Express International |
| AEI | Atchity Entertainment International |
| AEI | Engineering Inc |
| AEIC | Aimbuilder Exporters and Importers Company |
| AEJ | Arthur Edward Jones Electrical Services |
| AEL | American Export Line |
| AEMC | Albemarle Electric Membership Corporation |
| AEMS | Alvin Emergency Medical Service |
| AEMS | Asian Educational Media Services |
| AEMS | Australian Electronic Manufacturing Services |
| AEOT | Atlantic Energy Of Things |
| AEOT | Atlantic Energy Of Things |
| AEP | American Electric Power |
| AEPA | Architects Engineers Planners Associates |
| AEPP | Advanced Engineering Plastic Products |