| SIDC | Seafood Industry Development Company 
| Others |
| SIDC | Seattle Infant Development Center
| Others |
| SIDC | Securities Industry Development Corporation
| Others |
| SIDC | Security Innovation and Demonstration Centre
| Others |
| SIDC | Social Impact Design Celebration
| Others |
| SIDC | Social Innovation in a Digital Context
| Others |
| SIDC | Solar Influences Data Center
| Others |
| SIDC | Sorosoro Ibaba Development
| Others |
| SIDC | Sorosoro Ibaba Development Cooperative
| Others |
| SIDC | Southern Illinois Dance Company
| Others |
| SIDC | Southern Indiana Development Commission
| Others |
| SIDC | Space Innovation and Development Center
| Others |
| SIDC | Space Innovation Development Center
| Others |
| SIDC | State Industrial Development Corporation
| Others |
| SIDC | State Institute for Drug Control
| Others |
| SIDC | Stay In Dublin City
| Others |
| SIDC | Subaru Impreza Drivers Club
| Others |
| SIDC | Subaru International Drivers Club
| Others |
| SIDC | Suez Industrial Development Company
| Others |
| SIDC | Support Issues Development Committee
| Others |
| SIDC | Swaziland Industrial Development Company
| Others |
| SIDC | Systems Integration and Data Conversion
| Others |