| ACTC | A Conscientious Translation Company 
| Others |
| ACTC | Academic Coaching and Tutoring Center
| Others |
| ACTC | Advanced Computer Technique Corporation
| Others |
| ACTC | Advanced Computing Technology Center
| Others |
| ACTC | Advances in Circulating Tumor Cells
| Others |
| ACTC | Advances in Circulating Tumour Cells
| Others |
| ACTC | Air Controlman (tower) Chief Petty Officer
| Others |
| ACTC | Alameda County Transportation Commission
| Others |
| ACTC | All Ceylon Tamil Congress
| Others |
| ACTC | Almaden Cycle Touring Club
| Others |
| ACTC | Amador County Transportation Commission
| Others |
| ACTC | American College of Tax Counsel
| Others |
| ACTC | Andhra Christian Theological College
| Others |
| ACTC | Apple Certified Technical Coordinator
| Others |
| ACTC | Arizona Classic Thunderbird Club
| Others |
| ACTC | Ashland Community and Technical College
| Others |
| ACTC | Asociacion Corredores Turismo Carretera
| Others |
| ACTC | Assistance Center of Towson Churches
| Others |
| ACTC | Associated Colleges of the Twin Cities
| Others |
| ACTC | Association for Core Texts and Courses
| Others |
| ACTC | Auckland Catholic Tertiary Chaplaincy
| Others |
| ACTC | Australian Counter-Terrorism Centre
| Others |
| ACTC | Automovil Club Temple Competicion
| Others |
| ACTC | AZ Community Tree Council
| Others |