| Accountability Reporting for the Community Colleges | Academic & Science |
| Advanced Research Computing Center | Academic & Science |
| Architectural Research Centers Consortium | Academic & Science |
| Alliance for Research in Chicagoland Communities | Academic & Science |
| Anoka Ramsey Community College | Academic & Science |
| Allied Riser Communications Company | Business |
| Aberdeen Recreation Cultural Center | Community |
| Alamo Ranch Community Church | Community |
| Aberdeen Recreation and Cultural Center | Community |
| Association of Rootes Car Clubs | Community |
| Awareness of Roots in Chinese Culture | Community |
| Association for the Rights of Catholics in the Church | Community |
| Advancing Research Computing on Campuses | Computing |
| Academic Resources and Computing Committee | Computing |
| Animal Research Community Channel | General |
| Ask Require Complain Call | General |
| Advanced Renal Cell Carcinoma | General |
| Arecibo Remote Command Center | General |
| Ask Request Concern Comment | General |
| ATEX Remote Controlled Cleaning | General |
| Alum Rock Counseling Center | General |
| Alfa Romeo Club of Canada | General |
| American Royalty Car Club | General |
| Alfa Romeo Cyprus Club | General |
| Area Repeater Coordination Council | Governmental |
| Adirondack Regional Chambers of Commerce | Governmental |
| Army Requirements Coordinating Committee | Governmental |
| Aeronautical Rescue Co-ordination Centre | Governmental |
| Applied Research in Cancer Control | Medical |
| Adirondack Regional Chamber of Commerce | Regional |
| AFA Regional Cosplay Championship | Regional |
| Appalachia Regional Comprehensive Center | Regional |
| Athletic Recreation and Community Center | Sports |
