| Airways Clinical Research Centers | Academic & Science |
| Aging and Cognition Research Clinic | Academic & Science |
| Alaskan Climate Research Center | Academic & Science |
| Asthma Clinical Research Center | Academic & Science |
| Australian Crustal Research Centre | Academic & Science |
| Asthma Clinical Research Centers | Academic & Science |
| Anesthesia Clinical Research Committee | Academic & Science |
| Advanced Computing Research Centre | Academic & Science |
| Airway Clinical Research Center | Academic & Science |
| Academic Computing Resource Center | Academic & Science |
| Advanced Casting Research Center | Academic & Science |
| Arizona Career Readiness Credential | Business |
| Atlantic Caribbean Roof Consulting | Business |
| Alliance for Community Respite Care | Community |
| Amherst Center for Russian Culture | Community |
| AIDS Community Research Consortium | Community |
| Advanced Cancer Research Center | Community |
| African Community Resource Center | Community |
| Arcata Community Recycling Center | Community |
| Arapahoe County Residential Center | Community |
| Ark City Recreation Center | Community |
| Architecture Computer Resource Center | Computing |
| Advisory Committee on Research Computing | Computing |
| Architecture Computing Resource Center | Computing |
| And Civil Rights Commission | General |
| Animal Care and Rescue Center | General |
| Agatha Christie Reading Challenge | General |
| Advanced Composite Research Center | General |
| Automovil Club Rio Cuarto | General |
| Automotive Composites Research Centre | General |
| Air Conditioning and Refrigeration Center | General |
| Advanced Cisco Router Configuration | General |
| Air Controlman (radar) Chief Petty Officer | Governmental |
| Acute Care Research Council | Governmental |
| Agricultural Container Research Council | Governmental |
| Alternate Control Reporting Center | Governmental |
| Area Calibration and Repair Center | Governmental |
| American Civil Rights Coalition | Governmental |
| Agricultural Container Recycling Council | Governmental |
| American Council on Regulatory Compliance | Governmental |
| Assured Crew Return Capability | Governmental |
| Ag Container Recycling Council | Governmental |
| Asian Community Resource Center | International |
| Asian Communication Resource Centre | International |
| Arkansas Cancer Research Center | Medical |
| Andalusia and Conecuh Railroad | Regional |
| Anoka County Radio Control | Regional |
| Alaska Coastal Rainforest Center | Regional |
| Alaska Coffee Roasting Co | Regional |
| Alta California Regional Center | Regional |
| Anoka County R/C | Regional |
| Alta California Regional Center's | Regional |
| Atlantic City Race Course | Sports |
