| Aids Research Consortium Of Atlanta | Academic & Science |
| Associate of the Royal College of Art (London) | Academic & Science |
| Amsterdam Research Center in Accounting | Academic & Science |
| American Race Car Association | Business |
| Asbestos Removal Contractors Association | Business |
| Appliance Recycling Centers of America, Inc. | Business |
| Arizona Roofing Contractors Association | Business |
| Alberta Roofing Contractors Association | Business |
| Automobile Race Clubs Of America | Community |
| Association of Regional Center Agencies | Community |
| Australasian Retail Credit Association | Community |
| Addiction Recovery Care Association | Community |
| Association for Research into Crimes against | Community |
| Advanced Reservation of Capacity Agreement | Computing |
| Advanced Recovery Continuity Appliance | Computing |
| Advanced Risc Computing Architecture | Computing |
| All Round Camera And | General |
| Ares Remote Chat Administration | General |
| Amateur Racers Crash Always | General |
| All aRound CAmera | General |
| Adjustable Rear Camber Arms | General |
| Alfa Romeo Autocaravan | General |
| Antigomobilistas Da Regiao de Catanduva | General |
| Asociatia Romana a Constructorilor de Autostrazi | General |
| Amateur Radio Council of Arizona | Governmental |
| American Rehabilitation Counseling Association | Medical |
| American Rehabilitation Counseling | Medical |
| Australian Retail Credit Association | Regional |
| Automobile Race Car Association | Sports |
| Automobile Racing Club of America | Sports |
| Amateur racers crashers association | Sports |
