| Stainless Software, Inc. | |
| Staircase AI | California |
| Stairwell, Inc. | California |
| Stak Agency | |
| Stakana | Washington |
| Stake Network, Inc. | New York |
| Stallard Technologies, Inc. | Kansas |
| Stallman Marketing | California |
| Stalwart Digital | |
| Stamats, Inc. | Iowa |
| Stambaugh Designs | Washington |
| Stamen Design, LLC | California |
| Stamford Pharmaceuticals, Inc. | |
| Stämm Biotech | California |
| Stampli | California |
| Stamus Networks, Inc. | |
| Stan | |
| Stan Ventures | Illinois |
| Stan's Tech Garage | California |
| Stancil Corporation | California |
| Stand 8 | |
| Stand Alone, Inc. | Illinois |
| Stand Insurance Solutions | |
| Stand Marketing, LLC | Georgia |
| Standard American Web | |
| Standard Bariatrics | Ohio |
| Standard BioTools | |
| Standard BioTools, Inc. | California |
| Standard Cognition | California |
| Standard Imaging, Inc. | Wisconsin |
| Standard Notes | Illinois |
| Standard Printed Circuits, Inc. | New York |
| StandardAero | |
| StanData Technology, LLC | Florida |
| Standex Electronics, Inc. | Ohio |
| Standford University GPS Research Laboratory | California |
| Standout Arts, LLC | |
| Standout Website | |
| Standpoint Software, LLC | Washington |
| Standpoint Technologies, LLC | North Carolina |
| StandUp Wireless | Kentucky |
| Stanford Angels & Entrepreneurs | California |
| Stanford Business Software, Inc. | California |
| Stanford Computer Optics, Inc. | California |
| Stanford Electronics, Manufacturing & Sales | California |
| Stanford Internet Research Data Repository | |
| Stanford Research Park | |
| Stanford Research Systems | California |
| Stanford University Applied Cryptography Group | California |
| Stanford University Artificial Intelligence Index | California |