| Stephen F. Austin State University | Texas |
| Stephen Wolfram | Illinois |
| Stephens College | Missouri |
| Stephens, Inc. | |
| Stephouse Networks | Oregon |
| Stepmiles, Inc. | Florida |
| Stepping Forward Technology, Inc. | Colorado |
| Steppingblocks, Inc. | Georgia |
| StepSeccurity | |
| StepStone Group | New York |
| StepUpLead | Massachusetts |
| StepWare, Inc. | Colorado |
| Stere, Inc. | New York |
| Stereotaxis | Missouri |
| Steri-Pharma | |
| Sterifre Medical, Inc. | Washington |
| Sterigenics US, LLC | Illinois |
| STERIS | Ohio |
| Sterling Communication Technologies, Inc. | Colorado |
| Sterling Communications, Inc. | Oregon |
| Sterling Computer Consultants | Michigan |
| Sterling Computer Sales, LLC | Pennsylvania |
| Sterling Computers | South Dakota |
| Sterling Partners | |
| Sterling Precision Optics | Illinois |
| Sterling Systems & Controls, Inc. | Illinois |
| SterlingBio Corporation | |
| Sterlings Mobile | |
| Stern PR Marketing Omaha | |
| Stern Security | |
| Sternhill Associates | |
| Sterogene Bioseparations | |
| Steroid Software, LLC | |
| SteroTherapeutics | |
| Stessa, Inc. | California |
| Stetson University | Florida |
| Steudel and Mann, LLC | Wisconsin |
| Steve Friedl | California |
| Steve Hays & Associates | Colorado |
| Steve Jackson Games | Texas |
| Steve Lieber & Associates, Inc. | Texas |
| Steve Oney | Michigan |
| Steve Wet // 68Design | Georgia |
| Steve's Computer Repair | |
| Steve's PC Repair | Oregon |
| Steve.ai | California |
| Steven Enterprises, Inc. | California |
| Steven Kiger Design | Utah |
| Steven Klein Computer Service | Michigan |
| Stevens & Stevens | Indiana |