| Abbreviation | Definition |
|---|---|
| ASA | Accredited Sertifying Agent |
| ASA | Adam Street Advisers |
| ASA | Advertising and Selling Association |
| ASA | American Spirit Arms |
| ASAC | Airspace Safety Analysis Corporation |
| ASAC | American Staffing Assurance Company |
| ASAE | American Society Of Allied Executives |
| ASAI | Aspen Street Architects, Inc. |
| ASAI | Automated Systems America Inc |
| ASAL | Automotive Stampings Assemblies Ltd |
| ASAP | Ande Salvin And Partner |
| ASAP | Andrew Shields And Andrew Poulsen |
| ASARCO | American Smelting and Refining Company |
| ASARS | Alert Security and Armed Response Service |
| ASAS | Ayman Shurbaji Architectural Studio |
| ASB | American Sleeve Bearing |
| ASC | Acoustic Science Corporation |
| ASC | Acoustic Sciences Corporation |
| ASC | Actuarial Systems Corporation |
| ASC | Advanced Security Concepts |