| Abbreviation | Definition |
|---|---|
| AISC | Artemis International Solutions Corporation |
| AISC | Atheeb Intergraph Saudi Company |
| AISG | American Insurance Services Group, Inc. |
| AISI | Aircraft Information Services Inc |
| AISI | American International Supply Inc |
| AISI | Aurora Information Systems, Inc. |
| AISL | Acorn Infrastructure Services Ltd |
| AISS | After Incarceration Support Systems |
| AIT | Angersbach International Tours |
| AITC | Alabama International Trade Center |
| AITC | American Information Technology Corporation |
| AITC | American Infrastructure Technologies Corporation |
| AITC | American International Transistor Corporation |
| AITC | Association of Investment Trust Companies |
| AITI | Advanced Industrial Training Inc |
| AITI | Adventure International Tours Inc |
| AITI | Aviation Instrument Technologies Inc |
| AITL | Aurangabad Industrial Township Ltd |
| AITO | Azadi International Tourism Organization |
| AITR | All Islands Timeshare Resales |