| Asociación Argentina de Microbiología | Academic & Science |
| Assam Academy of Mathematics | Academic & Science |
| Asociación Argentina de Microbiología | Academic & Science |
| Argentine Assocation of Microbiology | Academic & Science |
| Applications and Applied Mathematics | Academic & Science |
| Atmospheric Angular Momentum | Academic & Science |
| American Academy of Mechanics | Academic & Science |
| Mala Mala | Airport Code |
| Acadia Asset Management | Business |
| Advanced Acoustic Management | Business |
| Archimedes Asset Management | Business |
| Application Access Management | Business |
| Association of Accounting Marketing | Business |
| All Agency Memos | Business |
| Association for Accounting Marketing | Business |
| Authentication Accounting Module | Business |
| American Academy of Micropigmentation | Business |
| AAMES Financial Corporation | Business |
| Artemis Vct | Business |
| A1 Minerals, LTD. | Business |
| Advisors Asset Management | Business Management |
| Associated Asset Management | Business Management |
| Adoption Assistance Manual | Community |
| Association of Attorney Mediators | Community |
| Apartment Association of Michigan | Community |
| Association for Accessible Medicines | Community |
| Aspen Art Museum | Community |
| Artist Audio Messaging | Community |
| Advanced Alternative Media | Community |
| Association of Anglican Musicians | Community |
| Army Aviation Magazine | Community |
| American Alliance of Museums | Community |
| Alliance for Audited Media | Community |
| Ascii Adjust After Multiply | Computer Assembly Language |
| Automatic Acoustic Management | Computer Hardware |
| Audio Adapter Module | Computing |
| Adobe Application Manager | Computing |
| Adobe Audience Manager | Computing |
| Alternate Access Mapping | Computing |
| Alpha Advanced Materials | General |
| Ahmed Adam Mamado | General |
| Amplified Answering Machine | General |
| Advanced Air Mobility | General |
| Accessibility API Mappings | General |
| After Action Meeting | General |
| Abbreviation AAM Means | General |
| Academy of Advanced Manufacturing | General |
| Active Acoustic Motor | General |
| Alliance of Automobile Manufacturers | General |
| Automotive Aftermarket | General |
| Accredited Automotive Manager | General |
| American Axle Manufacturing | General |
| American Auto Matrix | General |
| Animators Against Memes | General |
| America Abroad Media | General |
| Avaya Aura Messaging | General |
| Affect Analysis Model | General |
| A A Messer | General |
| Axial Aberration Magnitude | General |
| Anodic Alumina Membrane | General |
| Acute Aseptic Meningitis | General |
| Alternative Access Mapping | General |
| Active Appearance Model | General |
| Alternatively Activated Macrophage | General |
| And A Monkey | General |
| ABN AMRO Merchant | General |
| Advanced Access Manager | General |
| Andy Andy and Malachi | General |
| Always Ask Milton | General |
| Automobile Association of Malaysia | General |
| Air to air Missle | General |
| All Activity Module | General |
| All Around Mopars | General |
| Around Australia Motorhomes | General |
| Aftermarket Account Manager | General |
| All About Mustangs | General |
| As A Matter | General |
| Audrain Automobile Museum | General |
| Association Automobile de Mardore | General |
| Action Against Malnutrition | General |
| Amis des Anciennes en Marche | General |
| Anti Air Mech | General |
| Automotive Association of Myanmar | General |
| Alliance for American Manufacturing | General |
| Anthony A Maciejewski | General |
| Arma da Aeronautica Militar (Portuguese Army Air Service) | Governmental |
| ANGADIPPURAM | Indian Railway Station |
| Asian American Ministries | International |
| AmtsAnMassung | International |
| Atatürk Arastirma Merkezi | International |
| Angry Asian Man | Internet |
| Alpha Angle Measurment | Medical |
| Association of American Medicine | Medical |
| Alcohol Awareness Month | Medical |
| After All Men | Messaging |
| All About Me | Messaging |
| Air To Air Missile | Military and Defence |
| Army Achievement Medal | Military and Defence |
| Amphibious Assault Model | Military and Defence |
| Adopt A Minefield | Military and Defence |
| Anti Aircraft Missle | Military and Defence |
| Alaska Administrative Manual | Regional |
| Asian and African Materials | Regional |
| African American Males | Regional |
| Anti-Apartheid Movement | Regional |
