| Abbreviation | Definition |
|---|---|
| ACQI | Aged Care Queensland Incorporated |
| ACR | Area Coverage Report |
| ACR | Automotive Collision Repair |
| ACRA | Australian Concrete Repair Association |
| ACRB | Advanced Consultancy Romke Bijker |
| ACRE | Amcare, Inc. |
| ACRI | Association Canadienne des Relations Industrielles |
| ACRI | Association of Crown Research Institutes |
| ACRN | America's Career Resource Network |
| ACRQ | Ateliers de Communication Relationnelle de Quebec |
| ACRR | Automotive Collision Repair and Refinishing |
| ACRS | Allied Colon and Rectal Specialists |
| ACRTA | Advanced Computer Repair & Technical Associates |
| ACS | Advanced Collateral Solutions |
| ACS | Advanced Cooling Solutions |
| ACS | Affiliated Computer Services |
| ACS | Al's Computer Service |
| ACS | American Communications Specialist |
| ACS | American Consolidated Services |
| ACS | American Coupler Systems |