| AAS | Applied Acoustics Systems |
|---|---|
| AAS | Arabian Advanced Systems |
| ABS | Adaptive Business Systems |
| ABS | Air Base Systems |
| ADS | Alliance Data Systems |
| AES | Aerospace Electronic Systems |
| AES | Alternative Energy Systems |
| ATLAS | Abbreviated Test Language for Avionics Systems, nástroj na testovani e vojenskej avioniky (angl.skr.) |
| BSA | Business Systems Analyst |
| ENS | Electronic Network Systems |