| American Center for Mongolian Studies | Academic & Science |
| Australian Clay Minerals Society | Academic & Science |
| Applied and Computational Mathematics and Statistics | Academic & Science |
| Association of Christians in the Mathematical Sciences | Academic & Science |
| American College of Mohs Surgery | Academic & Science |
| ARDEX Concrete Management Systems | Business |
| Allofe Construction Management System | Business |
| Application Control Management System | Business |
| Academic Catalog Management System | Business |
| All City Management Services | Business |
| Adventist Church Management System | Business |
| Athens Community Music School | Community |
| Andover Central Middle School | Community |
| Artaria Chamber Music School | Community |
| Alternative Comedy Memorial Society | Community |
| Arbor Creek Middle School | Community |
| Atlanta Charter Middle School | Community |
| Art Collection Management System | Community |
| Auditorium Chamber Music Series | Community |
| Alder Creek Middle School | Community |
| Athey Creek Middle School | Community |
| American Canyon Middle School | Community |
| Adams City Middle School | Community |
| Anne Chesnutt Middle School | Community |
| Asa Clark Middle School | Community |
| Antelope Crossing Middle School | Community |
| Acquisition and Contract Management System | Computing |
| Application Control and Management System | Computing |
| Agency Client Management System | Computing |
| Atomic Controlfile Memory Service | Computing |
| Athens City Middle School | Educational Institute |
| Advanced Combat Man System | General |
| Automatic Channel Memory System | General |
| Aircraft Condition Monitor System | General |
| Automovil Club Madrid Sport | General |
| Associated Clan Macleod Societies | General |
| Aircraft Condition Monitoring System (also: DFDAU, DMU, FDAM) | General |
| Army College of Medical Sciences | Governmental |
| Aquaculture Catchment Management Services | Governmental |
| Aircraft Condition Monitoring System | Governmental |
| Association of Certified Marine Surveyors | Governmental |
| American Chinese Medical Society | Medical |
| Animal Cruelty Must Stop | Medical |
| Allegheny County Medical Society | Medical |
| Alachua County Medical Society | Medical |
| Alternative Care Management System | Medical |
| Astute Combat Management System | Military and Defence |
| Australian Computer Museum Society | Regional |
| Automated Configuration Management System | Softwares |
| Active Content Management System | Softwares |
