| Acronym | Definition |
|---|
| SAI➣Statement of Additional Information (SEC) |
| SAI➣Shaheen Air International Limited (Pakistan) |
| SAI➣Sexual Abuse Intervention |
| SAI➣Silicon Alley Insider, Inc. (website) |
| SAI➣Sonic Automotive, Inc. (Charlotte, NC) |
| SAI➣Science Applications International Corporation (stock symbol) |
| SAI➣Sports Authority of India |
| SAI➣Supreme Audit Institution (Republic of Korea) |
| SAI➣Sweet Adelines International (International Organization of Women Barbershop Singers) |
| SAI➣Sensor-Actuator Interface |
| SAI➣Sternberg Astronomical Institute |
| SAI➣Social Accountability International |
| SAI➣Systems Alliance, Inc. (Maryland) |
| SAI➣Sigma Alpha Iota (women's music fraternity) |
| SAI➣Study Abroad Italy |
| SAI➣Science and Information Organization (various locations) |
| SAI➣Small Animal Imaging (various locations) |
| SAI➣Stateful Application Intelligence |
| SAI➣Sun Academic Initiative |
| SAI➣South American Indian (language) |
| SAI➣Sailfish (FAO fish species code) |
| SAI➣Società Astronomica Italiana (Italian: Italian Astronomy Society) |
| SAI➣Special Alternative Incarceration (Michigan) |
| SAI➣Sistema de Alimentacion Ininterrumpida (Spanish: uninterruptible power supply) |
| SAI➣Standards Australia International Ltd. |
| SAI➣Secondary Air Injection (automotive) |
| SAI➣Semi-Annual Inspection (Canada) |
| SAI➣Schulen ans Internet (German: Internet for Schools) |
| SAI➣Strategic Agricultural Initiative |
| SAI➣Senior Army Instructor |
| SAI➣Serving Area Interface |
| SAI➣Steering Axis Inclination |
| SAI➣Securities America, Inc. |
| SAI➣Student Agencies, Inc. (New York) |
| SAI➣Serious Accident Investigation (various organizations) |
| SAI➣Silent Aircraft Initiative (Massachusetts Institute of Technology, Cambridge) |
| SAI➣South African Internet |
| SAI➣South Asia International (HK) Ltd. (Hong Kong) |
| SAI➣Systems Applications International |
| SAI➣South African Infantry (South African ground troops in World War I) |
| SAI➣Society of Architectural Illustration (UK) |
| SAI➣Summit Agro International |
| SAI➣Soil-Applied Insecticide |
| SAI➣Service des Affaires Internationales (French: Department of International Affairs; various organizations) |
| SAI➣Service des Admissions Internationales (French: International Admissions Service) |
| SAI➣Successful Aging Initiative (Alabama) |
| SAI➣Shanghai Alliance Investment (Shanghai, China) |
| SAI➣Specific Area of Interest |
| SAI➣Single Agency Item (US DoD) |
| SAI➣Sociological Abstracts, Inc. (San Diego, CA) |
| SAI➣Self-Administered Interview |
| SAI➣Sparse Approximate Inverse |
| SAI➣Springfield Armory Incorporated (Illinois) |
| SAI➣Senior Artists Initiative (various locations) |
| SAI➣Systematic Automation, Inc. (Farmington, CT) |
| SAI➣Seed Applied Insecticide (agriculture) |
| SAI➣Safety Attribute Inspection (US FAA) |
| SAI➣Service Argos Inc. |
| SAI➣Security Awareness Index |
| SAI➣Special Artificer Instrument (US Navy) |
| SAI➣Slowly Adapting Type I |
| SAI➣Sua Altezza Imperiale (Italian: His/Her Imperial Highness; codices and manuscripts) |
| SAI➣Server Availability Index |
| SAI➣Systems Architecture and Interfaces (Aeronautical Radio Incorporated) |
| SAI➣Structural Adequacy Index (pavement assessment) |
| SAI➣Standby Attitude Indicator |
| SAI➣Supersonic Aerospace International LLC |
| SAI➣Southern Aeroparts Inc. (Tulsa, OK) |
| SAI➣Service des Affaires Immobilières (French: Department of Real Estate) |
| SAI➣Standard Advertising Invoice |
| SAI➣Systems Application Integration |
| SAI➣Sugar Association, Inc. |
| SAI➣Sea-to-Air Interface |
| SAI➣Swales Aerospace Inc. (Beltsville, Maryland) |
| SAI➣Safety Appliance Illustration |
| SAI➣Semi-Automatic Interface |
| SAI➣Simplified Ab Initio Method |
| SAI➣Secretariat al'Adoption Internationale |
| SAI➣Solution Assay Instrument |
| SAI➣Strategic Command Administrative Instruction (USSTRATCOM) |
| SAI➣Sequential Action Interaction |
| SAI➣Surveillance-Aided Intercept |
| SAI➣Spanish Artificial Intelligence |
| SAI➣Square-And-Integrate |
| SAI➣Sahawa al Iraq |
| SAI➣Spectrum Astro Incorporated (Phoenix, Arizona) |
| SAI➣Significant Adverse Information (background check results) |
| SAI➣Strength and Integrity Inspection (US Navy 5 year boiler inspection) |
| SAI➣Situation Awareness Infrastructure |
| SAI➣Standardization, Analysis, and Integration Branch |
| SAI➣Scaled Aviation Industries Limited (Pakistan) |
| SAI➣Smart Animal Identification (workshop) |
| SAI➣Studio Associato Immobiliare (Italian: Associated Real Estate Study) |