Acceptance Checkout and Evaluation System - NASA (NASA)
Acceptance Control Equipment Section - or System - NASA (NASA)
Acceptance Control Equipment System (SAUS)
Access Control Entry System (ABAD)
(Acetamidol)Aminoethanesulfonic Acid - A buffer
Acoustic Containerless Experiment System - Materials processing
Acquisition Center Executive System (MLEX)
Action Cards for Engineers and Scientists (ACAE)
Action Chretienne pour l'Eglise du Silence - Belgium
Active Control Equivalence Studies
Active Control Evaluation for Spacecraft (SAUS)
Adaptation Controlled Environment System (ADWA)
Adaptively Controlled Explicit Simulation (VLIE)
ADP- Automatic Data Processing Command and Control Evaluation System (MLEX)
Advance Computerized Execution System - Business term (EBF)
Advanced Beam-Weapon Concept Evaluation Study (ACAE)
Advanced Carry-on ELINT/ESM Suite (SAUS)
Advanced Concept Ejection Seat - Aviation (MCD)
Advanced Concept Escape System (MCD)
Advanced Crew Escape System (ACAE)
Advisory Council on Education Statistics - Department of Education (GFGA)
Aerial Combat Engagement Simulator (ACAE)
Aerolineas Centrales de Colombia - Airline - Colombia
Airborne Collection Electronic Signals (SAUS)
Air Carrier Engineering Service
Air Carrier Engineering Service, Inc. (SAUO)
Air Collection and Enrichment System
Air Collection Engine System
Air Combat Expert Simulation - Military
Airdrop Controlled Exit System - Military technology (DDF)
Alabama Center for Estuarine Studies - University of South Alabama (RCD)
Alert Citizens for Environmental Safety - Formed to protect West Texas and the US/Mexico border region's natural resources (CROSS)
Alternative Consumer Energy Society (SAUO)
Amer Casino Enterprises - NASDAQ symbol
American Casino Enterprises, Inc. - NASDAQ symbol (NQ)
American Catholic Esperanto Society (EA)
American Charter Enterprise Services Inc. (SAUO)
American Chevelle Enthusiasts Society - Association (EA)
American College of Eye Surgeons (NTPA)
American Copy Editors Society (FLAA)
Americans for the Competitive Enterprise System - Later, ACEE (EA)
Annual Capital Expenditures Survey (SAUS)
Annual Cycle Energy System - Energy Research and Development Admininistration
Antisubmarine Composite Engineering Squadron
Appeals Court Electronic Service (SAUO)
Applied Computational Electromagnetics Society (VLIE)
Area Cooperative Educational Service (SAUO)
Area Cooperative Educational Services - Information service or system
ARMMS - Automated Reliability and Maintenance Management System Control Executive System - NASA
Army Career Education System
Army Center of Excellence - Subsistence - Military (MLEX)
Army Communications Electronics School (MCD)
Army Communications Equipment Support (MCD)
Army Continuing Educations System (SAUO)
Army Continuing Education System
Army Continuing Evaluation Services
Army Controlling Education Service
Arrow Continuation Experiment - Military technology (DDF)
Arrow Continuation Experiments (SAUS)
Arts and Crafts Exhibition Society (SAUO)
Arts Create Excellent Schools - Program
Associated Chemical and Environmental Services (EFIS)
Associated Collectors of El Salvador (EA)
Association Canadienne des Eaux Souterraines - Canada (EAIO)
Association for Children for Enforcement of Support (EA)
Association for Comparative Economic Studies - Notre Dame, IN (EA)
Association for Counselor Education and Supervision (EA)
Association of Consulting Engineers of Saskatchewan (ASC)
Assurance Control Economics System (MUGU)
Autodesk's Comprehensive Education Solution (VLIE)
Automated Camera Effects System
Automated Circulation and Enquiry System - University of Aberdeen - British (CIST)
Automated Clinical Evaluation System - Medicine (DB)
Automated Code Evaluation System
Automated Command & Control Evaluation System - Military technology (DDF)
Automated Cost Evaluation System (MLEX)
Automatically Controlled Electrical System - NASA (MCD)
Automatic Characterization and Extraction System (ACAE)
Automatic Checkout and Evaluation System - Air Force
Automatic Checkout Equipment Sequencer (NASA)
Automatic Control Evaluation Simulator - Spaceflight training machine
Resource Centre, City of Calgary Electric System, Alberta - Library symbol - National Library of Canada (NLC)