| Stanford Computer Industry Project | Academic & Science |
| Structural Concrete Insulated Panel | Academic & Science |
| Society for Computers in Psychology | Academic & Science |
| Skidmore College Installment Payments | Academic & Science |
| Shanghai Chemical Industry Park | Academic & Science |
| Supply Chain Innovation and Policy | Business |
| Security Consulting Information and Process | Business |
| School and Community Intervention Program | Community |
| Society of Competitive Intelligence Professionals | Community |
| School Continuous Improvement Plan | Community |
| Soft Computing and Image Processing | Computing |
| Security, Confidentiality, Integrity, and Privacy | Computing |
| Security Cooperation Information Portal | Computing |
| Shuswap Construction Industry Professionals | General |
| Speech Communication Interaction Program | General |
| Strategic and Competitive Intelligence Professionals | General |
| Solving Constraint Integer Programs | General |
| Specifications Consultants in Independent Practice | General |
| Service Credibility Integrity and Profitability | General |
| Secure Communication Implementation Protocol | General |
| Sound Contrasts In Phonology | General |
| Scattered Cooperative Infill Program | Governmental |
| School Community Intervention Program | Governmental |
| Safe Communities Incentive Program | Governmental |
| Statewide Community Infrastructure Program | Governmental |
| Student Computing and Information Page | Internet |
| Strategies for Crisis Intervention and Prevention | Medical |
| Surgical Care Improvement Project | Medical |
| Statewide Centre for Improvement of Palliative Care | Medical |
| Supply Chain Integration Program | Military and Defence |
| Secure Communications Interoperability Protocol | Networking |
| Isla de Pascua Mataveri, Chile | Regional |
| Sindh Cities Improvement Program | Regional |
