| SMSC | Gateway Mobile Switching Center 
| Others |
| SMSC | San Mateo Service Center
| Others |
| SMSC | Scottish Medical Students Committee
| Others |
| SMSC | Self Management Science Center
| Others |
| SMSC | Semiconductor Microsystems Corporation
| Others |
| SMSC | Senior Management Service Class
| Others |
| SMSC | Shakopee Mdewakanton Sioux Community
| Others |
| SMSC | Short Message Service Center
| Others |
| SMSC | Short Message Service Centers
| Others |
| SMSC | Short Message Service Centre
| Others |
| SMSC | Simca Matra Sports Club
| Others |
| SMSC | Singapore Motor Sports Club
| Others |
| SMSC | Smithsonian Mason School of Conservation
| Others |
| SMSC | Smithsonian-Mason School of Conservation
| Others |
| SMSC | Sms Call
| Others |
| SMSC | Social Moral Spiritual and Cultural
| Others |
| SMSC | South Mississippi Soccer Club
| Others |
| SMSC | Southeast Missouri Soccer Club
| Others |
| SMSC | Southeast Missouri Swim Conference
| Others |
| SMSC | Southern Maryland Studies Center
| Others |
| SMSC | Southern Motor Sports Club
| Others |
| SMSC | Southwest Minnesota State College
| Others |
| SMSC | Spiritual Moral Social And Cultural
| Others |
| SMSC | Spiritual, Moral, Social, and Cultural values
| Others |
| SMSC | St. Madeleine Sophie's Center
| Others |
| SMSC | Standard Microsystems Corporation
| Others |
| SMSC | Stephenville Medical and Surgical Clinic
| Others |
| SMSC | Swiss Multiple Sclerosis Cohort
| Others |
| SMSC | Sydney Machina Social Club
| Others |
| SMSC | System Maintenance and Support Center
| Others |