| SCARC | Santa Clarita Amateur Radio Club 
| Others |
| SCARC | Scottish Clinical Audit Resource Centre
| Others |
| SCARC | Ski Country Amateur Radio Club
| Others |
| SCARC | Smoking Control Advocacy Resource Center
| Others |
| SCARC | Somerset County Amateur Radio Club
| Others |
| SCARC | Sonoma County Association of Rotary Clubs
| Others |
| SCARC | South Carolina Association of Regional Councils
| Others |
| SCARC | South Central Alberta Resource Centre
| Others |
| SCARC | Special Collection Archives Research Center
| Others |
| SCARC | St Charles Amateur Radio Club
| Others |
| SCARC | St Clair Amateur Radio Club
| Others |
| SCARC | Stanly County Amateur Radio Club
| Others |
| SCARC | Stanwood Camano Amateur Radio Club
| Others |
| SCARC | Story County Amateur Radio Club
| Others |
| SCARC | Sussex County Amateur Radio Club
| Others |