| Services Institute of Medical Sciences | Academic & Science |
| Stable Isotope Mass Spectrometer | Academic & Science |
| Security Information Management Systems | Business |
| SoMS Information Management System | Business |
| Senior Information Management System | Business |
| System Integration and Management Services | Business |
| Strategic Information Management System | Business |
| State Information Management System | Business |
| Store Inventory Management System | Business Management |
| School Information Management System | Business Management |
| Safety Information Management System | Business Management |
| Schools Information Management System | Business Management |
| Synthes Inventory Management Solution | Business Management |
| Sales Insight Management Solutions | Business Management |
| Students For International Mission Service | Community |
| School Information Management Systems | Computing |
| Student Information Management System | Computing |
| Security Information Management Solution | Computing |
| Secondary Ion Mass Spectroscopy | Electronics |
| Simulator of Interactive Mobile Sentients | General |
| Secondary Ion Mass Spectrometry | General |
| Secondary Ion Mass Spectrometer | General |
| Secondary Ion Mass Spectometry | General |
| The South Irving Mexicans And Salvadorean | General |
| Sustainable Intelligent Mining Systems | General |
| Structured Individualised Multi Sensory | General |
| Smart Inline Measurement Solutions | General |
| Scanning Ion Microscopy Secondary | General |
| Saudi International Motor Show | General |
| Sydney Institute of Marine Science | Governmental |
| Scripps Institutions for Medicine and Science | Governmental |
| Selina International Music Summit | International |
| Stalker Internet Mail Server | Internet |
| Symbiosis Institute of Management Studies | Management College in India |
| Serious Incident Management System | Medical |
| Standardised Incident Management System | Medical |
| Structured Inventory of Malingered Symptoms | Medical |
| Societal Institute of the Mathematical Sciences | Medical |
| Smart Integrated Monitoring System | Military and Defence |
| Solaris Internet Mail Server | Networking |
| Simulation In Plural (simulations) | Softwares |
| Shuttle Imaging Microwave System | Space Science |
| Shuttle Inventory Management System | Space Science |
| Still Image Management System | Space Science |
| Sports Injury Monitoring System | Sports |
| Stock Exchange of Thailand Information Management System | Stock Exchange |
