| South Piedmont Community College | Academic & Science |
| St. Paul's Co-educational College | Academic & Science |
| St Philip's Christian College | Academic & Science |
| St Peter Claver College | Academic & Science |
| Student Personal Counseling Center | Academic & Science |
| Southern Pacific Communications Company | Business |
| St Pancras Cruising Club | Community |
| St Paul Curling Club | Community |
| Sagarmartha Pollution Control Committee | Community |
| Severna Park Community Center | Community |
| Sex Positive Community Center | Community |
| Surface Preparation and Cleaning Conference | Community |
| St. Paul's Community Center | Community |
| Sacred Piston Car Club | General |
| South Performance Car Club | General |
| Special Performance Car Club | General |
| Structural Pest Control Commission | General |
| Southeastern Primary Care Consortium | General |
| Spill Prevention Control and Countermeasure | General |
| Small Purchase Charge Card | General |
| Spccspill Prevention Control And Countermeasure | General |
| Spill Prevention Control Countermeasure | General |
| Spill Prevention Control Contermeasure | General |
| Spill Prevention Countermeasures and Control | Governmental |
| Ship Parts Control Center | Governmental |
| Ships Parts Control Center (USN) | Governmental |
| STS Processing Control Center | Governmental |
| Strategic Planning Coordination Committee | Governmental |
| Spill Prevention Control And Countermeasures | Medical |
| Society for the Prevention of Cruelty to Children | Medical |
| Ciudad Construction, Peru | Regional |
