| Audio-Magnetotellurics | Academic & Science |
| Amorphous Metal Transformer | Academic & Science |
| Atmospheric Measurement Techniques | Academic & Science |
| Accademia di Medicina di Torino | Academic & Science |
| Academy of Medicine of Turin | Academic & Science |
| Amount | Accounts and Finance |
| Alternative Minimum Tax | Accounts and Finance |
| Amata | Airport Code |
| Australian Mathematics Trust | Associations & Organizations |
| American Tower Corporation | Business |
| Arcadia Machine and Tool | Business |
| Advanced Surgical Design & Manufacture Ltd | Business |
| Aluminum Model Toys | Business |
| Aircraft Maintenance Technician | Business |
| Arcadia Machine & Tool | Business |
| Alternate Minimum Tax | Business |
| Amino Mercapto Thiadiazole | Chemistry |
| Advanced Media Technologies | Community |
| Active Management Technology | Computing |
| Autoinstall Model Table | Computing |
| Account Management Tool | Computing |
| Alan Mathison Turing | Computing |
| Association of Macintosh Trainers | Computing |
| Automatic Matching Tool | Computing |
| Anti Malware Technology | Computing |
| Automatic Multicast Without Explicit Tunnels | Computing |
| Adobe Update Management Tool | Computing |
| Adobe Moses Tools | Computing |
| Apple Media Tool | Computing |
| Active Memory Technology | Computing |
| Address Mapping Table | Computing |
| Ascending Mass Technology | Computing |
| AMATERAS | Cryptocurrency |
| Animaltycoon | Cryptocurrency |
| Advanced Midi Transmission | Electronics |
| Advanced Manufacturing Technology | Electronics |
| Alternian Multiverse Tournament | General |
| American Machine And Tool | General |
| Advanced Manufacturing Techniques | General |
| All Money Taken | General |
| Atlantic Meridional Transect | General |
| Aluminum Metal Toys | General |
| Automated Manual Transmission | General |
| Asian Motor Technics | General |
| Advanced Materials for Transport | General |
| Automobile Miass Torino | General |
| Aston Martin Tickford | General |
| Average Miles Traveled | General |
| Automated Mechanical Transmission | General |
| Auto Moto Tube | General |
| Automotive Mechatronics Technician | General |
| Automotive Mechatronic Training | General |
| Automotive Mechanics Technology | General |
| Automotive Meeting de Tanger-Med | General |
| Automotive Maintenance Technology | General |
| Advanced Manufacturing Technician | General |
| Advanced Microscopy Techniques | General |
| Applied Manufacturing Technologies | General |
| Association for Manufacturing Technology | General |
| Alissia Melka Teichroew | General |
| Adaptive Motion Trainer | General |
| Ache Most Terrible | General |
| Annual Multi Trip | General |
| Aircraft Maintenance Techician | General |
| Average Market Theoretical | General |
| Air Motion Transformer | General |
| All Material Transporter | General |
| Action Maturity Training | General |
| Asset Management Team | Governmental |
| Aviation Maintenance Technicians | Governmental |
| AMMAPET | Indian Railway Station |
| Assign Medical Transport | Medical |
| Abbreviated Mental Test | Medical |
| Active Motor Threshold | Medical |
| Acute Miliary Tuberculosis | Medical |
| Agency Management Team | Medical |
| alpha methyltryptamine | Medical |
| American Medical Technologists | Medical |
| aminomethyltransferase | Medical |
| amitriptyline | Medical |
| Amniotic Membrane Transplantation | Medical |
| Anxiety Management Training | Medical |
| Atherogenic Metabolic Triad | Medical |
| α-Methyltryptamine | Medical |
| Ambulance Medical Technician | Medical |
| Ambulance Medical Technicians | Medical |
| Advanced Medical Transport | Medical |
| Anti Motion Tracker | Military and Defence |
| Aviation Maintenance Technician | Military and Defence |
| Autodin Multimedia Terminal | Military and Defence |
| Army Modernization Training | Military and Defence |
| Aerial Mail Terminal | Military and Defence |
| Accelerated Mission Test | Military and Defence |
| Active Midi Transmission | Networking |
| Airy Mean Time | Regional |
| Agence métropolitaine de transport Montréal | Regional |
| American Match Target | Sports |
| Applied Microphone Technology | Technology |
| Advanced Moulding Technology | Technology |
| Australasian Mobile Telecommunications | Telecommunication |
| Armenia Time | Time |
| Amazon Time | Time |
| Aldermaston | Transport & Travel |
| ATA Airlines | Transport & Travel |
| Azienda Mobilità e Trasporti | Transport & Travel |
