| American Society of Anaesthesiology | Academic & Science |
| Adventist Students Association | Academic & Science |
| Asian Students Association | Academic & Science |
| Aboriginal Students Association | Academic & Science |
| African Students Association | Academic & Science |
| American Student Assistance | Academic & Science |
| American Society of Agronomy | Academic & Science |
| American Society on Aging | Academic & Science |
| Active Social Architecture | Academic & Science |
| American Society of | Academic & Science |
| Asian Sustainability Academy | Academic & Science |
| American Society of Anaesthesiologists | Academic & Science |
| Astronomical Society of Australia | Academic & Science |
| American Society for Aesthetics | Academic & Science |
| Australian Society of Anaesthetists | Academic & Science |
| สมาคม สถาปนิก สยาม | Academic & Science |
| Association of Siamese Architects | Academic & Science |
| Australian Society of Archivists | Academic & Science |
| Anaerobe Society of the Americas | Academic & Science |
| Schweizerische Aktuarvereinigung | Academic & Science |
| Association Suisse des Actuaires | Academic & Science |
| Swiss Association of Actuaries | Academic & Science |
| Arizona Students Association | Academic & Science |
| Art Scholarship Achievement | Academic & Science |
| Academic Studies Abroad | Academic & Science |
| American Society of Acupuncturists | Academic & Science |
| Alkenyl Succinic Anhydrides | Academic & Science |
| Applied Science Associates | Academic & Science |
| Albany Students Association | Academic & Science |
| Aakash Success Achiever | Academic & Science |
| Accredited Senior Appraiser (us) | Accounts and Finance |
| Assab | Airport Code |
| Australian String Academy | Associations & Organizations |
| Action for Social Advancement | Associations & Organizations |
| American Synesthesia Association | Associations & Organizations |
| Aviation Supplies Association | Business |
| Advertising and Selling Association | Business |
| American Society of Anestheasiologists | Business |
| Air Supply Adaptor | Business |
| American Spirit Arms | Business |
| American Society of Anesthesiology | Business |
| Aviation Supplies & Academics | Business |
| Allmennaksjeselskap | Business |
| Accredited Sertifying Agent | Business |
| American Standards Association | Business |
| A S A, Ltd. | Business |
| Adam Street Advisers | Business |
| Adult Services Agency | Business |
| Aviation Suppliers Association | Business |
| American Subcontractors Association | Business |
| American Society of Appraisers | Business |
| Air Source Adapter | Business |
| Acetylsalicylic Acid (aspirin) | Chemistry |
| Alkenyl Succinic Anhydride | Chemistry |
| Autism Society of America | Community |
| All Saints Association | Community |
| American Scientific Association | Community |
| American Sociological Association | Community |
| Ausiliario Socio Assistenziale | Community |
| American Stroke Association | Community |
| Association of Social Advancement | Community |
| American Staffing Association | Community |
| Advertising Standards Authority | Community |
| Archery Shooters Association | Community |
| American Studies Association | Community |
| Allen Sports Association | Community |
| Amateur Sports Association | Community |
| Association of Subcontractors and Affiliates | Community |
| Art Service Association | Community |
| American Soybean Association | Community |
| Acoustical Society of America | Community |
| American Sportfishing Association | Community |
| American Suppressor Association | Community |
| Association of Student Activities | Community |
| Agricultural Stewardship Association | Community |
| American Shotcrete Association | Community |
| After School Assignment | Community |
| American Security Association | Community |
| Arizona School for the Arts | Community |
| Average Speed to Answer | Community |
| Appropriate Sex and Age | Community |
| Americans for Safe Access | Community |
| Advanced Speaker Array | Computer Hardware |
| After Security Advisory | Computing |
| Adaptive Security Algorithm | Computing |
| Adaptive Security Appliance | Computing |
| Adaptive Simulated Annealing | Computing |
| Advance Separated Absorbed System | Computing |
| Anti Spam Alliance | Computing |
| Administrative Support Assistant | Computing |
| Automation Systems Architecture | Computing |
| Automated Support Assistant | Computing |
| Autocad Support Assistance | Computing |
| Anti Spam Agent | Computing |
| Automated Service Agents | Computing |
| Advanced Scsi Architecture | Computing |
| Alabama Supercomputer Authority | Computing |
| Anti Spam Association | Computing |
| Adaptive Security Appliances | Computing |
| Automatic System Access | Computing |
| Asura Coin | Cryptocurrency |
| AstroSanta | Cryptocurrency |
| Audi Side Assist | General |
| Automatic Speed Adaptation | General |
| Autocostruzione Societa Per Azione | General |
| Aftersales Support Application | General |
| Auto Sport Academy | General |
| American Superhero Association | General |
| Adjustable Shock Absorber | General |
| Airbag Solutions Agreement | General |
| Angry Stache Alliance | General |
| Automobil Service Austustungen | General |
| Additional Steering Axle | General |
| Auto Style Awards | General |
| Air Shock Absorber | General |
| Audi Saudi Arabia | General |
| Arbeiten Sicher Ausf | General |
| Automobiles Sportives d'Aquitaine | General |
| Asociacion Sarmientina de Automovilismo | General |
| Atlantic Southeast Airlines | General |
| Active Steering Assist | General |
| Association Sportive Automobile | General |
| Automotive Systems Analysis | General |
| Advanced Safety Assist | General |
| Automotive Stars Academy | General |
| Auto Skills Australia | General |
| Automotive Service Advisor | General |
| Anarchy Strikes America | General |
| Acrylonitrile Styrene Acrylate | General |
| Aviation Safety Assistant | General |
| Activity Service and Advocacy | General |
| Autoklub Slovakia Assistance | General |
| Autoliv South America | General |
| Asociatia Siguranta Auto | General |
| Audi South Africa | General |
| Autoliv Sverige Ab | General |
| Average Speed of Answer | General |
| Poly(Acrylic Styrene Acrylonitrile) | General |
| Advanced Signal Analysis | General |
| American Scientific Affiliation | General |
| Advance Surface Ablation | General |
| Astro Systeme Austria | General |
| Abbreviation Stands for Avaya | General |
| Anti Spam Administration | General |
| Assistant Secretary for Administration | General |
| Airport Services Association | General |
| At Sphere Approxn | General |
| Americas Sorriest Airline | General |
| American Standards Authority | Governmental |
| Automotive Service Association | Governmental |
| American Statistical Association | Governmental |
| Airservices Australia | Governmental |
| Apprentice Seaman (aviation) | Governmental |
| Amphibian Survival Alliance | Governmental |
| Air Service Area | Governmental |
| AminoSalicylic Acid | Governmental |
| Acción Social Agraria | International |
| Alianza Socialista de Andalucía | International |
| Alianza Socialista de Aragón | International |
| Aeropuertos y Servicios Auxiliares | International |
| Anti-Sweetie Alliance | Internet |
| Alarm Systems Agent | Jobs |
| Assistant Secretary of The Army | Jobs |
| Accredited Senior Appraiser | Jobs |
| Associate of The Society of Actuaries | Jobs |
| Angle Side Angle | Maths |
| Anti-Squalene Antibodies | Medical |
| American Society of Anesthesiologists | Medical |
| ArgininoSuccinic Acidemia | Medical |
| acetylsalicylic acid | Medical |
| Adams-Stokes attack | Medical |
| Alcohol Septal Ablation | Medical |
| Ambulance Service Association | Medical |
| American Society of Andrology | Medical |
| American Surgical Association | Medical |
| Anterior Septal Artery | Medical |
| Anterior Spinal Artery | Medical |
| antisperm antibody | Medical |
| Atrial Septal Aneurysm | Medical |
| Australasian Sonographers Association | Medical |
| Aspirin (acetylsalicyclic acid) | Medical |
| Acetyl Saicylic Acid | Medical |
| Auditory Scene Analysis | Medical |
| American Supply Association | Messaging |
| As Soon As | Messaging |
| Aviation Supplies & Academics | Messaging |
| Aviation Supplies and Academics | Messaging |
| Automatic Spectrum Analyzer | Military and Defence |
| Army Security Agency | Military and Defence |
| Army Strategic Appraisal | Military and Defence |
| Ammunition Supply Activity | Military and Defence |
| Allied Swat Agents | Military and Defence |
| Ammunition Storage Area | Military and Defence |
| Active Server Application | Networking |
| Adaptive Server Anywhere | Networking |
| Application Service Assurance | Networking |
| Automatic System Answer | Networking |
| Accessible Surface Area | Physics Related |
| Aperture Setting Adjustment | Physics Related |
| Apparent Strength of Adhesion | Physics Related |
| Anglo South African | Regional |
| African Studies Association | Regional |
| Assab, Eritrea | Regional |
| Australian Seed Authority | Regional |
| Animate Singular Agent | Softwares |
| Austrian Space Agency | Space Science |
| Australian Space Agency | Space Science |
| American Softball Association | Sports |
| After School Activity | Sports |
| All Softball Associations | Sports |
| American Sailing Association | Sports |
| Amateur Softball Association | Sports |
| American Speed Association | Sports |
| Aggressive Skater Association | Sports |
| Amateur Swimming Association | Sports |
| Aggressive Skaters Association | Sports |
| American Subbuteo Association | Sports |
| Alberta Soccer Association | Sports & Games |
| Avaya Site Administration | Telecommunication |
| Assab International Airport | Transport & Travel |
