| SAI | Argentine Society of Immunology 
| Others |
| SAI | Safety Attribute Inspection
| Others |
| SAI | San Andres Island
| Others |
| SAI | San Marino, San Marino
| Others |
| SAI | Save Animals Initiative
| Others |
| SAI | Scale and Interpolation
| Others |
| SAI | Scenic America, Inc.
| Others |
| SAI | Schillinger Associates Inc
| Others |
| SAI | Schlote Automotive Italia
| Others |
| SAI | School Ability Index
| Others |
| SAI | School Administrators of Iowa
| Others |
| SAI | Science and Information
| Others |
| SAI | Science Applications International
| Others |
| SAI | Scientific Analytical Institute
| Others |
| SAI | Scottish Agricultural Institute
| Others |
| SAI | Sea-To-Air Interface
| Others |
| SAI | Secure Application for Internet
| Others |
| SAI | Senior Army Instructor
| Others |
| SAI | Senior Assistant Instructor
| Others |
| SAI | Sequence Associated Information
| Others |
| SAI | Serve And Inspire
| Others |
| SAI | Service Action Integrity
| Others |
| SAI | Service Adoration and Illumination
| Others |
| SAI | Service, Adoration, and Illumination
| Others |
| SAI | Serving Area Interface
| Others |
| SAI | Share An Image
| Others |
| SAI | Shelby American Inc.
| Others |
| SAI | Shelby Automobiles Inc.
| Others |
| SAI | Sigma Alpha Iota
| Others |
| SAI | Silicon Alley Insider
| Others |
| SAI | Single Accountable Individual
| Others |
| SAI | Single Active Ingredient
| Others |
| SAI | Single Agency Item
| Others |
| SAI | Skoda Auto India
| Others |
| SAI | Slaved Abused And Injured
| Others |
| SAI | Small Aperture Inlay
| Others |
| SAI | Social Accountability International
| Others |
| SAI | Society All Inclusive
| Others |
| SAI | Society of Actuaries in Ireland
| Others |
| SAI | Society of Atherosclerosis Imaging
| Others |
| SAI | Son Altesse Imp
| Others |
| SAI | South America Implants
| Others |
| SAI | South American Indian (Other)
| Others |
| SAI | Space Academic Institute
| Others |
| SAI | Spiritual Absolute and Infinite
| Others |
| SAI | Split APKs Installer
| Others |
| SAI | Sports Authority of India
| Government, Education, Sports |
| SAI | Standards Assessment Inventory
| Others |
| SAI | Standards Australia International
| Others |
| SAI | State Audit Institution
| Others |
| SAI | State Automobile Inspection
| Others |
| SAI | Stateful Application Intelligence
| Others |
| SAI | Statement Against Interest
| Others |
| SAI | Statement of Additional Information
| Business, Finance, Fund |
| SAI | Steel Arch Igloo
| Others |
| SAI | Steering Axis Inclination
| Others |
| SAI | Strategic Applications International
| Others |
| SAI | Strategic Artificial Intelligence
| Others |
| SAI | Student Achievement Initiative
| Others |
| SAI | Student Assessment of Instruction
| Others |
| SAI | Study Abroad Italy
| Others |
| SAI | Subeta Agency of Intelligence
| Others |
| SAI | Sudden Acceleration Incidents
| Others |
| SAI | Summer Agricultural Institute
| Others |
| SAI | Sun Academic Initiative
| Others |
| SAI | Sundberg Architectural Initiative
| Others |
| SAI | Super Army Infantry
| Others |
| SAI | Supervisory Assistance Incentive
| Others |
| SAI | Supplemental Academic Instruction
| Others |
| SAI | Sustainable Agriculture Initiative
| Others |
| SAI | Sweet Adelines International
| Others |
| SAI | Switch Abstraction Interface
| Others |
| SAI | Swivel Axis Inclination
| Others |
| SAI | Synthetic Artificial Individual
| Others |
| SAI | Systems Alliance Inc
| Others |
| SAI | Systems Associates Inc
| Others |