| SSWG | Safe Space for Women and Girls 
| Others |
| SSWG | Safe Spaces for Women and Girls
| Others |
| SSWG | Safety Simulation Working Group
| Others |
| SSWG | Safety Surveillance Working Group
| Others |
| SSWG | Salt Science Working Group
| Others |
| SSWG | Satellite Services Working Group
| Others |
| SSWG | Sea Scallop Working Group
| Others |
| SSWG | Sector Selection Working Group
| Others |
| SSWG | Sector Support Working Group
| Others |
| SSWG | Security Services Working Group
| Others |
| SSWG | Social Science Working Group
| Others |
| SSWG | Social Sciences Working Group
| Others |
| SSWG | Social Sector Working Group
| Others |
| SSWG | Social Service Worker Gerontology
| Others |
| SSWG | Social Services Working Group
| Others |
| SSWG | Software and Standards Working Group
| Others |
| SSWG | Solar System Working Group
| Others |
| SSWG | Source Security Working Group
| Others |
| SSWG | Southend on Sea Wargames Group
| Others |
| SSWG | Space Science Working Group
| Others |
| SSWG | Space Security Working Group
| Others |
| SSWG | Space Systems Working Group
| Others |
| SSWG | Special Subject Working Group
| Others |
| SSWG | Specific Subject Working Group
| Others |
| SSWG | Sporting Shooters Womens Group
| Others |
| SSWG | State Stewardship Work Group
| Others |
| SSWG | Steady State Working Group
| Others |
| SSWG | Strategic Sciences Working Group
| Others |
| SSWG | Support Standards Working Group
| Others |
| SSWG | Survivor Support Working Group
| Others |
| SSWG | Swift Server Work Group
| Others |
| SSWG | Swift Server Working Group
| Others |
| SSWG | System Safety Working Group
| Others |
| SSWG | System Support Working Group
| Others |