| SQZ Biotechnologies Company | Massachusetts |
| SR One | |
| SR Web Creators | Nebraska |
| SRI International | California |
| SrinSoft | |
| SriSai Biopharmaceutical Solutions, LLC | |
| Srisys, Inc. | |
| Sriven infosys | New York |
| SRO Hosting | California |
| SRO Software | California |
| Srona Medical, Inc. | California |
| SRP Computer Solutions, Inc. | California |
| SRQ Robotics, LLC | |
| SRS Computing | Pennsylvania |
| SRS Medical | Massachusetts |
| SRS Systems, Inc. | New York |
| SRT Communications, Inc. | North Dakota |
| SS Innovations International, Inc. | |
| SS&C Advent | California |
| SS&C Salentica | New York |
| SS&C Technologies, Inc. | |
| SS8 Networks, Inc. | California |
| SSAI Technologies, LLC | New Jersey |
| SSD Technology Partners | Delaware |
| SSE, Inc. | Missouri |
| SSG Ltd | Texas |
| SsgSoftware | Utah |
| SSI Electronics, Inc. | Michigan |
| SSi People | Pennsylvania |
| SSL Corporation | Texas |
| SSLab - Systems Software & Security Lab | |
| SSLMate | |
| SSLs.com | Arizona |
| SSP Innovations, LLC | Colorado |
| SST Systems, Inc. | California |
| ST Digital Solutions | |
| ST Engineering | Virginia |
| St Louis SEO Company | |
| St Louis Web Design Company | Missouri |
| St. Ambrose University | Iowa |
| St. Ambrose University Bachelor of Science in Mathematics | Iowa |
| St. Ambrose University Information Technology Degrees | Iowa |
| St. Andrews University | North Carolina |
| St. Augustine College | Illinois |
| St. Bonaventure University Computer Science, B.S. | New York |
| St. Catherine University | Minnesota |
| St. Clair Software | Virginia |
| St. Cloud Capital, LLC | California |
| St. Cloud State University Computing, Informatics and Data Science | Minnesota |
| St. Cloud State University Mathematics | Minnesota |