| Aesthetic Development | Academic & Science |
| Association for the Study of Dreams | Academic & Science |
| Astronomical Society in Denmark | Academic & Science |
| Astronomisk Selskab i Danmark | Academic & Science |
| Applied Science Division | Academic & Science |
| Academy for Science and Design | Academic & Science |
| Allowable Stress Design | Academic & Science |
| COLLOQUIALISM FOR 'aced' | Academic & Science |
| Aerobic Sludge Digestion | Academic & Science |
| American Society of Dermatology | Academic & Science |
| Anti-Slip Differential | Academic & Science |
| Another Sunny Day | Academic & Science |
| Andros Town | Airport Code |
| Agile Software Development | Business |
| Axis-shield | Business |
| American Standard Companies, Inc., of Delaware | Business |
| Authorized Solutions Developer | Business |
| Ancient Steel Design | Business |
| Advanced Strategy Division | Business |
| Auscape Services Department | Business |
| Accelerator Systems Division | Business |
| Atomic Spin Density | Chemistry |
| Advanced Systems Development | Community |
| Ambulatory Systems Development | Community |
| After School Detention | Community |
| Albert S. Davis, County Commissioner in Florida | Community |
| A Skylit Drive | Community |
| American School Directory | Community |
| Achievement School District | Community |
| Anchorage School District | Community |
| Armstrong School District | Community |
| American School for the Deaf | Community |
| Allentown School District | Community |
| Appalachian Sustainable Development | Community |
| Active Sound Design | Community |
| Apple Service Diagnostics | Computer Hardware |
| Adjustable Speed Drive | Computer Hardware |
| Apple Service Diagnostic | Computer Hardware |
| Atomic Spectra Database | Computing |
| Advanced Solution Development | Computing |
| Assignment Selection Date | Computing |
| Advanced Stream Descriptor | Computing |
| Adjustable Speed Drives | Computing |
| Always Send Data | Computing |
| Automatic Software Distribution | Computing |
| Application Specific Data | Computing |
| Action Script Dictionary | Computing |
| Assembly Design | Computing |
| Application Specific Device | Computing |
| Advanced Semiconductor Development | Computing |
| Application Specific Discretes | Computing |
| Automatic Skip Driver | Computing |
| Application Structure Description | Computing |
| Auto Recovery Save of Word Document | Computing |
| Auto Recovery Save of Document | Computing |
| ASD | Cryptocurrency |
| A Secure Dbms | Database Management |
| Active System Development | Database Management |
| Action Semantic Description | Database Management |
| Word for Windows Autosave File | File Type |
| Astound Presentation File | File Type |
| Lotus 1-2-3 Screen Driver | File Type |
| Advanced Systems Design | General |
| Actual Shipping Date | General |
| Average Standard Deviation | General |
| Acquisition Strategies Document | General |
| Answering Service for Directors | General |
| Automotive Specialty Distributor | General |
| Automotive Systems Design | General |
| Aspirating Smoke Detector | General |
| All Season Diesel | General |
| Automotive Sector Deal | General |
| Automotive Systems Division | General |
| Automotive Systems Developments | General |
| American Society of Dowsers | General |
| Atrial Septal Defects | General |
| Atrial Septic Defects | General |
| Automated Systems Design | General |
| Alt Support Diet | General |
| Answering Service for | General |
| Agonizingly Slow and Determined | General |
| Asswipes and Slackers Department | General |
| Acceptable Separation Distance | General |
| Alternative Subsurface Data | General |
| Automatic Slip Control Differential | General |
| Amplitude Selective Dampers | General |
| Automatic Shutdown Relay | General |
| Autosport Dynamics | General |
| Automatik Sperrdifferential | General |
| Audi Smart Display | General |
| Automotive Software Development | General |
| Automated Systems Development | General |
| Additive Super Detergent | General |
| Anti Slide Device | General |
| Anti Skid Device | General |
| Authorized Service Dealer | General |
| Approved Service Dealer | General |
| Automotive Sales and Distribution | General |
| Actual Stopping Distance | General |
| Army shipping document | Governmental |
| Aircraft Situation Display | Governmental |
| Azimuth Stern Drive | Governmental |
| Acquisition Support Decision | Governmental |
| AMBASAMUDRAM | Indian Railway Station |
| Acción Social Demócrata | International |
| Attention Seeking Disorder | Medical |
| Action for Singapore Dogs | Medical |
| Advanced Senility Disease | Medical |
| Academic Skills Disorder | Medical |
| Autism Spectrum Disorders | Medical |
| Adaptive Seating Device | Medical |
| adult Still’s disease | Medical |
| Aldosterone Secretion Defect | Medical |
| Alzheimer’s senile dementia | Medical |
| Atrial Septal Defect | Medical |
| Autosensitisation Spongiotic Dermatitis | Medical |
| Acute Stress Disorder | Medical |
| Autistic Spectrum Disorder | Medical |
| Anterior Segment Dysgenesis | Medical |
| Autism Spectrum Disorder | Medical |
| Autistic Spectrum Disorders | Medical |
| Alt Support Depression | Messaging |
| A Silly Dementor | Messaging |
| Another Silly Disorder | Messaging |
| Advanced Scenario Design | Military and Defence |
| Army Schools Department | Military and Defence |
| Armament Systems Division | Military and Defence |
| Ammunition Storage Depot | Military and Defence |
| Assistant Secretary of Defense | Military and Defence |
| Airworthiness Substantiation Document | Military and Defence |
| Aeronautical Systems Division | Military and Defence |
| Assigned Software Developer | Military and Defence |
| Assigned Systems Developer | Military and Defence |
| Awis Software Development | Military and Defence |
| Automatic Shut Down | Military and Defence |
| Address Self Discovery | Networking |
| Astrophysics Science Division | Physics Related |
| Active Surface Definition | Physics Related |
| Australian Signals Directorate | Regional |
| Auto Save Document | Softwares |
| Andromeda Software Development | Softwares |
| Association Sportive De Djerba | Sports |
| Alternative Service Delivery | Telecommunication |
