| Abbreviation | Definition |
|---|---|
| ASSIA | Adaptive Spectrum and SIgnal Alignment |
| ASSIGNMENT | Automated Signal Super Inoperable Guiding And Navigation Mechanical Equipment For Neutering Targets |
| ASSL | Ananda Shipyard and Slipways Ltd |
| ASSL | Association de Soccer de Saint Lambert |
| ASSRC | American Software Safety Reliability Company |
| ASSYST | Advanced Software Systems, Inc |
| AST | Advanced Sealing Technologies |
| AST | Advanced Simulation Technology |
| AST | Advanced Software Technlogies |
| AST | Advanced Software Technologies |
| AST | Advanced Sound Technologies |
| AST | Advanced Systems Technology |
| AST | ATT Software Technologies |
| ASTC | ASX Settlement and Transfer Corporation |
| ASTE | Advanced Systems and Telecommunications Equipment |
| ASTI | Advanced Simulation Technology, Inc. |
| ASTI | Ascent Solar Technologies Inc |
| ASVA | Association of Scottish Visitor Attractions |
| ASVEI | Association Suisse des Vignerons-Encaveurs Indépendants |
| ASWW | Al Ansari Steel & Wood Works LLC |