| Abbreviation | Definition |
|---|---|
| ACCT | Accounting Department |
| ACD | Accessible Communication for the Deaf |
| ACDC | American Computer and Digital Components |
| ACDC | Asian Community Development Corporation |
| ACDC | Australian Commercial Disputes Centre |
| ACDI | Al Clawson Disposal Inc |
| ACDL | Asian Coast Development Ltd |
| ACDP | Access Collision Damaged Parts |
| ACDP | Alliance Capital Development Program |
| ACE | Air Canada Enterprises |
| ACE | Alice Calhoun Enterprises |
| ACE | Alternative Certification Educators |
| ACE | American Casualty Excess |
| ACE | American Coal Enterprizes |
| ACE | American Computer Estimating |
| ACE | Austin Chess Enterprises |
| ACE | Australian Club Entertainment |
| ACE | Austria Cards Emv |
| ACEC | American Council of Engineering Companies |
| ACEC | Aridi Contracting and Engineering Company |