Academy of Agricultural and Forest Sciences (SAUO)
Active Scattering Aerosol Spectrometer - Aerosol measurement device
Advanced Solid Axial Stage programme (SAUS)
Advanced Solid State Array Sensor (CARB)
Advanced Solid State Array Spectrometer (ACAE)
Advertising Standards Authority of Singapore (SAUO)
Aerodynamic Stability Augmentation Subsystem (SAUS)
Aerodynamic Stability Augmentation System - or Subsystem - NASA (NASA)
Agostiniani Secolari Agustinos Seculares - Order Secular of St. Augustine - OSSA - Rome, Italy (EAIO)
All Saints Anglican School (FLAA)
All-Source Alarm System (TIMI)
All Source Analysis System - DoD
Alternate Stability Augmentation System (SAUS)
American Society of Abdominal Surgeons (EA)
American Society of Abdominal Surgery (EA)
American Society of Agricultural Sciences (SAUO)
American Society of Animal Science (EA)
Amorphous Sodium Aluminosilicate - Inorganic chemistry
Amsterdam Security Account System (EXCG)
Argininosuccinate Synthetase - An enzyme (AAMN)
Army Security Agency School - Merged with Defense Security Agency School
Association of South-East Asian States
Atkins Stress Analysis System - Atkins Research & Development - Software package (NCC)
Atkins Structural Analysis System (MCD)
Australian Special Air Services (VNW)
Aviation Safety Analysis System - FAA (GFGA)