| Atlantic Automotive Engineering | Academic & Science |
| Ascorbic Acid Equivalents | Academic & Science |
| Advanced Automotive Electronic | Academic & Science |
| IEEE Workshop on Automotive Applications of Electronics | Academic & Science |
| Academy of Aerospace and Engineering | Academic & Science |
| Advanced Automotive Engineer | Academic & Science |
| Agricultural Applied Economics | Academic & Science |
| Advanced Aeginian Engineering | Academic & Science |
| Aeronautics and Astronautics Engineering | Academic & Science |
| Annaba | Airport Code |
| Alkylated Amine Epoxy | Business |
| AMDOCS Automatic Commercial Exchange | Business |
| Advanced Action Engine | Business |
| Average Annual Earnings | Business |
| ARM Accredited Engineer | Business |
| Audit And Evaluation | Business |
| Arabian American Express | Business |
| Association of Asthma Educators | Community |
| All About Eve | Community |
| Actors Are Egotists | Community |
| Aakash Anthe Exam | Community |
| American Association of Endodontists | Community |
| Association of American Educators | Community |
| Association of Art Editors | Community |
| Academy for Academic Excellence | Community |
| Association des Anciens Elèves | Community |
| Access American Education | Community |
| American Academy of English | Community |
| Association of Academic E | Community |
| American Association of Endodontics | Community |
| Actuarial Association of Europe | Community |
| American Association of Engineers | Computing |
| Apple Airport Express | Computing |
| Acceptance Acknowledgement Exception | Computing |
| Apple Airport Extreme | Computing |
| Association of Automotive Employers | General |
| Advances in Automobile Engineering | General |
| Average Absolute Error | General |
| Advanced Automotive Engineering | General |
| Advanced Automotive Electronics | General |
| Automobile Adaptive Equipment | General |
| Automotive Applications of Electronics | General |
| Average Angular Error | General |
| Associazione Auto-Moto d'Epoca | General |
| Animal Assisted Education | General |
| Adelaide Auto Expo | General |
| Absorption Angstrom Exponent | General |
| Affirmative Action Employer | General |
| Anti Add Everything | General |
| Animal Alter Ego | General |
| Atmospheric Air Ejector | General |
| Above Aerodrome Elevation | General |
| Adagio Audio Expander | General |
| Alien Abduction Experiences | General |
| All About Equine | General |
| Arago Automation Engine | General |
| All American Entertainment | General |
| Active Assistive Exercise | General |
| Aeronautical Astronaut Eng | General |
| American Adventure Expeditions | General |
| Advanced Aircraft Extinguishers | General |
| Ariel Atom Experience | General |
| Advanced Auto Electric | General |
| Archive As Event | General |
| Accredited Airport Executive | General |
| Another Arcade Emulator | General |
| Arizona Archery Enterprises | General |
| Aircraft Armament Equipment | General |
| Advanced Adapter Engine | General |
| Andhral Awami Etihad | General |
| American Asia Express | General |
| Advanced American Enterprises | General |
| Advance Adapter Engine | General |
| Aerial Access Equipment | General |
| American Aluminum Enterprises | General |
| Active Anti Entropy | General |
| Agricultural and Applied Economics | General |
| Armée de l'Air et de l'Espace (French Air and Space Force) | Governmental |
| Alianza Anticomunista de España | International |
| American Asian Express | International |
| Asian Attractions Expo | International |
| Antibody Affinity Extraction | Medical |
| Antibiotic Associated Enterocolitis | Medical |
| Adobe After Effects | Messaging |
| Army Acquisition Executive | Military and Defence |
| Artillery Accuracy Effectiveness | Military and Defence |
| Australia Air Express | Regional |
| AIDS Action Europe | Regional |
| Australian Air Express | Regional |
| Affordable Accommodations for Europeans | Regional |
| African American English | Regional |
| Australian Antarctic Expedition | Regional |
| Aluminum Athletic Equipment | Sports |
