| Accelerator Mass Spectrometer | Academic & Science |
| Association of Malaysian Students | Academic & Science |
| Academic Monitoring System | Academic & Science |
| American Meteor Society | Academic & Science |
| Associated Men Students | Academic & Science |
| Department of Applied Mathematics and Statistics | Academic & Science |
| Academy of Medicine, Singapore | Academic & Science |
| Aerospace Material Specifications | Academic & Science |
| Alma Mater Society | Academic & Science |
| Authority in Methods & Systems | Academic & Science |
| Academic Management Services | Academic & Science |
| Altered Mental State | Academic & Science |
| Amsterdam | Airport Code |
| American Shared Hospital Services | Business |
| Accreditation of Manufacturing Staff | Business |
| Agency Management System | Business |
| Automatic Machine Systems | Business |
| Advanced Medical Solutions Group, P.L.C. Ordinary shares | Business |
| Academy of Medical Sciences | Business |
| Arnold Mixing Systems | Business |
| Accessori Moto Scooter | Business |
| American Musical Supply | Business |
| Automated Marketing Strategies | Business |
| America Media Systems | Business |
| Automated Machine Systems | Business |
| Automation Measurement Solution | Business |
| Austria Mikro Systeme | Business |
| Association Management Software | Business |
| Affiliated Medical Services | Business |
| Agricultural Management Solutions | Business |
| American Musicological Society | Business |
| Adult Movie Shop | Business |
| Atlona Management System | Business |
| Advertising Management System | Business |
| Account Management System | Business |
| Attendee Management Services | Business |
| Apparel Management Solution® | Business |
| Application Management System | Business |
| Amazon Marketing Services | Business |
| Accountability Management System | Business |
| Assessment Management System | Business |
| Agriculture management system | Business |
| Association Management Solutions | Business |
| Acquisition Management System | Business |
| Association Management Specialist | Business |
| Aviation Management Society | Business |
| Aeospace Material Specification | Business |
| Arbeidsvoorwaardenregeling Medisch Specialisten | Business |
| Annual Maintenance Contract | Business Management |
| Association Management System | Business Management |
| Alport Mhlanga Special | Community |
| Arts, Media, and Sports | Community |
| Atlantic Mission Society | Community |
| Atascocita Middle School | Community |
| Amherst Middle School | Community |
| Academy of Marketing Science | Community |
| Antigo Middle School | Community |
| Alvarado Middle School | Community |
| Association Management Services | Community |
| Ad Middle School | Community |
| Albany Middle School | Community |
| American Music and Sound | Community |
| Alternative Movie Society | Community |
| American Montessori Society | Community |
| Alderwood Middle School | Community |
| Add, Multiply, Subtract | Computer Hardware |
| Associative Memory System | Computer Hardware |
| Access Method Services | Computing |
| Automatic Magnification Selection | Computing |
| Automatic Music Search | Computing |
| Advanced Message Server | Computing |
| Audiovisual Multimedia Services | Computing |
| Amplifier Management System | Computing |
| Application Management Software | Computing |
| Avast Management Server | Computing |
| Application Management Standard | Computing |
| Advanced Microcomputer System | Computing |
| Adaptable Memory Socket | Computing |
| Assurance Management Solution | Computing |
| Andrew Message System | Computing |
| Alert Management System | Computing |
| Advance Motion Search | Computing |
| Address Multiplexer Select | Computing |
| Alarm Management System | Computing |
| Avast Mobile Security | Computing |
| Access Management System | Computing |
| Azure Managed Service | Computing |
| Aws Managed Services | Computing |
| Application Managed Services | Computing |
| Application Management Services | Computing |
| Application Management Service | Computing |
| Adobe Monitor Setup | Computing |
| AmsterdamCoin | Cryptocurrency |
| Analog Mixed Signal | Electronics |
| Automatic Music Sensor | Electronics |
| Adobe Photoshop Adobe Monitor Setup Calibration File | File Type |
| Velvert Studio Mod Music File | File Type |
| Always Model Sloooowwwwly | General |
| Alfred Merritt Smith | General |
| All Mountain Style | General |
| Mechanical Systems | General |
| Automatic Mode Select | General |
| Advanced Modeler's Syndrome | General |
| Address Management Services | General |
| Analog and Mixed Signals | General |
| Advanced Metering System | General |
| Aerial Mail Service | General |
| Automated Merchandising Systems | General |
| Aviation Management System | General |
| Advanced Microgrid Solutions | General |
| Alpha Male Strategies | General |
| Allegorical Manipulation System | General |
| Advanced Metropolitan Solutions | General |
| Attribute Modifier System | General |
| Aviation Structural Mechanic | General |
| Automatic Manufacturing Systems | General |
| Albion Merchant Ship | General |
| Advanced Metropolitan | General |
| Adjutant Mine Sweepe | General |
| Auxiliary Measurement Service | General |
| Automation Message Specification | General |
| American Modular Systems | General |
| Atlanta Motor Speedway | General |
| Air Motion Systems | General |
| Absolute Mediocre Services | General |
| Aqua Metrology Systems | General |
| Alternate Mailing System | General |
| Auto Motor Sport | General |
| Around Monitoring System | General |
| Air Management System | General |
| Alternator Management System | General |
| Alabama Motor Speedway | General |
| Minesweeper (Auxiliary, MineSweeper) | General |
| American Modified Series | General |
| Angola Motorsport Speedway | General |
| Acrobatic Motor Show | General |
| Air Mass Sensor | General |
| Autogas Management System | General |
| Alabama Motoring Society | General |
| Automechanika Shanghai | General |
| Automotive Management Solutions | General |
| Automotive Management System | General |
| Automotive Management Services | General |
| Automotive Manufacturing Solutions | General |
| Auto Moto Storiche | General |
| Automobile Site | General |
| Adaptive Motorsport Suspension | General |
| Automobilista | General |
| Agricultural Marketing Service | Governmental |
| Aeronautical Material Specification | Governmental |
| Aggregate Measure of Support | Governmental |
| Anti-Mugging Stick | Governmental |
| Airport Management System | Governmental |
| Automated Manifest System | Governmental |
| Altitude Membrane Sickness | Governmental |
| Acquisition Method Selection | Governmental |
| Award Management System | Governmental |
| Aseptic Meningitis Syndrome | Governmental |
| AMAUSI | Indian Railway Station |
| American Mathematical Society | Maths |
| Anatomical Molding System | Medical |
| Active Mountain Sickness | Medical |
| Acute Maxillary Sinusitis | Medical |
| Advanced Medical Systems | Medical |
| Army Medical Services | Medical |
| Association of Military Surgeons | Medical |
| Atypical Measles Syndrome | Medical |
| American Medical Systems | Medical |
| Amylase | Medical |
| Auto Mode Switches | Medical |
| Australian Mammal Society | Medical |
| Antimicrobial stewardship | Medical |
| Acute Mountain Sickness | Medical |
| Altered Mental Status | Medical |
| Advanced Modeling Syndrome | Medical |
| Ask Me Something | Messaging |
| Advanced Manufacturing Services | Messaging |
| Austriamicrosystems | Messaging |
| Advanced Mailing Solutions | Messaging |
| Aftermarket Service | Messaging |
| Autodin Mail Server | Military and Defence |
| Automated Meteorological System | Military and Defence |
| Army Management Structure | Military and Defence |
| Army Materiel Services | Military and Defence |
| Aerial Measuring System | Military and Defence |
| Air Mobility Squadron | Military and Defence |
| Asset Management System | Military and Defence |
| Anti-missile System | Military and Defence |
| Archdiocese for The Military Services | Military and Defence |
| Army Medical Serice | Military and Defence |
| Automatic Message Switching | Networking |
| Automated Mail Systems | Networking |
| Alpha Magnetic Spectrometer | Physics Related |
| Accelerator Mass Spectrometry | Physics Related |
| Anisotropy of Magnetic Susceptibility | Physics Related |
| Amsterdam, Netherlands | Regional |
| African Manufacturing Solutions | Regional |
| Australian Measurement System | Regional |
| Advanced Mathematics Software | Softwares |
| Aviad, Micha, and Shami | Softwares |
| Analog Modelling System | Softwares |
| Automatic Maintenance Scheduler | Space Science |
| Acoustic Measurement System | Space Science |
| Actuation Mechanism Subsystem | Space Science |
| Amplifier Subsystem | Space Science |
| Athletic Management System | Sports |
| Automatic Order Matching and Execution System | Stock Exchange |
| Analog and Mixed Signal | Telecommunication |