| Almond Acres Charter Academy | Academic & Science |
| Architects Accreditation Council of Australia | Academic & Science |
| American Academy of Conducting at Aspen | Academic & Science |
| American Academy of Culinary Arts | Academic & Science |
| American Association of Certified Appraisers | Business |
| Asian American Cultural Association | Community |
| Authentic Artifact Collectors Association | Community |
| Asian American Civic Association | Community |
| Arizona Association of Crime Analysts | Community |
| Atlanta Air Cargo Association | Community |
| All Assam Chess Association | Community |
| American Association of Clinical Anatomists | Community |
| Authentic Artifacts Collectors Association | Community |
| Atlanta Area Compensation Association | Community |
| Athletic Association of Catholic Academies | Community |
| Advances in Applied Clifford Algebras | General |
| Aircraft Armament Chiefs Association | General |
| Authorized Agent Controlled Analgesia | General |
| Antique Automobile Club of America | General |
| American Alliance of Creditor Attorneys | Governmental |
| American Anti-Corruption Act | Governmental |
| Alliance Against Cruelty to Animals | Governmental |
| Alliance Against Circus Animals | Governmental |
| Alibaba Anti Counterfeiting Alliance | Governmental |
| Asian American Contractors Association | International |
| Army Airlift Clearance Authority | Military and Defence |
| Alaska Air Carriers Association | Regional |
