| Success Academy Charter Schools | Academic & Science |
| Statistical Analysis Center SAC | Academic & Science |
| Students Are Central to Success | Academic & Science |
| Summative Assessment of Case Study | Academic & Science |
| Standardized Account Code Structure | Accounts and Finance |
| Saline Aquifer Company Storage | Business |
| Southwest Allen County Schools | Community |
| Shakopee Area Catholic Schools | Community |
| Send a Child to School | Community |
| St Alphonsus Catholic School | Community |
| Saint Alphonsus Catholic School | Community |
| St Andrew's Cathedral School | Community |
| Southern Association of Colleges and Schools | Community |
| Simulation for the Analysis of Computer Systems | Computing |
| South African College School | Educational Institute |
| Saurer Club Schweiz | General |
| Secondary Airport Control Station | General |
| Street Address Conversion System | General |
| South Atlantic Cable System | General |
| Scientific Advisors and Consultants Staff | Governmental |
| Suzuki Advanced Cooling System | Governmental |
| State AIDS Control Society | Medical |
| Sleep And Circadian Studies | Medical |
| Secure Telephone Unit (stu) Access Control System | Military and Defence |
| Structure and Composition System | Military and Defence |
| Villa de Soto, Argentina | Regional |
| South African College Schools | Regional |
| Software Avionics Command Support | Space Science |
| Systems Software Avionics Command Support | Space Science |
| Speed, Agility, Core, and Strength | Sports |
| Security Access Control System | Telecommunication |
