| Accumulation Of Credits And Certification Of Subjects | Academic & Science |
| American Center For Chinese Studies | Academic & Science |
| Association for Chinese Communication Studies | Academic & Science |
| Academic Counseling and Career Services | Academic & Science |
| ARC Centre for Complex Systems, University of Queensland | Academic & Science |
| Amsterdam Centre for Computational Science | Academic & Science |
| American Christian College | Academic & Science |
| Association of Caribbean Copyright Societies | Academic & Science |
| American Chinese CEO Society | Academic & Science |
| Accounting Classification Code Structure | Accounts and Finance |
| Advanced Cash Control System | Accounts and Finance |
| All Commercial and Catering Services | Business |
| American Corrective Counseling Services | Business |
| Automatic Customer Care Service | Business |
| Advanced Contact Centre Solutions | Business |
| Ancient Coin Certification Service | Business |
| Accord Customer Care Solutions | Business |
| Ashford Computer Consulting Service | Business |
| Ancient Christian Commentary on Scripture | Community |
| Assistive Community Care Services | Community |
| Adams Central Community Schools | Community |
| Adult Community Clinical Services | Community |
| Adair Casey Community School | Community |
| Association of Classical Christian Schools | Community |
| Adair Casey Community Schools | Community |
| Association of Collegiate Computing | Community |
| Advisory Commission on Charter Schools | Community |
| Adams County Christian School | Community |
| Albany Community Charter School | Community |
| Automatic Computer Cutting System | Computing |
| Application Container Cloud Service | Computing |
| Advanced ComputeriZed Color Scanner | Computing |
| Association of Collegiate Computing Services | Computing |
| American Christian College and Seminary | Educational Institute |
| Alabama Community College System | Educational Institute |
| American Comprehensive Counseling Services | General |
| Automated Casualty Care System | General |
| Adult Critical Care Specialist | General |
| Application Cloud Container Service | General |
| Air Conditioning Cycling Switch | General |
| Advanced Climate Control System | General |
| Adaptive Cruise Control System | General |
| American Car Club Sweden | General |
| Andre Citroen Club Spain | General |
| Autohub Car Care Services | General |
| American Credit Counseling Service | General |
| Advanced CAD/CAM Service | General |
| Altitude Compensating Carburetor System | General |
| Air Conditioning Control Systems | General |
| Air Command And Control | General |
| Air Command and Control Systems | General |
| Automatic Calling Card Service | General |
| Automated CAS Collection System | General |
| American critical care services | General |
| Adult Critical Care Specialty | General |
| Arlington County Commuter Services | Governmental |
| Air Traffic Controller Senior Chief Petty Officer | Governmental |
| Air Controlman Senior Chief Petty Officer | Governmental |
| Acute Common Care Stem | Medical |
| American-Canadian Cooperative Study | Medical |
| Amsterdam clinical challenge scale | Medical |
| Army Command and Control System | Military and Defence |
| Air Command and Control System | Military and Defence |
| Alaska Center for Conservation Science | Regional |
| Association of Copyright for Computer Software | Softwares |
| Advanced Checkout and Control System | Space Science |
| American Challenge Cup Series | Sports |
