| Semrush, Inc. | Massachusetts |
| Semtech | California |
| SEMTEX | Massachusetts |
| Semtex Industrial Corporation | New York |
| SemWare | Georgia |
| Sen-Jam Pharmaceutical, Inc. | |
| Sena Technology, Inc. | California |
| Sena-Tech, LLC | Florida |
| Senary Software Development Services | California |
| Sencha, Inc. | Texas |
| Sencommunications, Inc. | Florida |
| Sencore | South Dakota |
| SencorpWhite | |
| Send Unlimited Email | |
| Senda Biosciences | Massachusetts |
| Sendbird, Inc. | California |
| SendBlaster.com | California |
| SendEngage | |
| SendGraph | Wyoming |
| SendGrid | Colorado |
| SendHub | Florida |
| SendiCertified | Indiana |
| Sendinc | Texas |
| Sendio | California |
| Sendlane | California |
| Sendloop | California |
| Sendoso | California |
| SendPulse | New York |
| SendThisFile, Inc. | Kansas |
| SendX | Colorado |
| Seneca Design & Training, Inc. | Illinois |
| Seneca Software & Solar, Inc. | Colorado |
| Seneca Therapeutics, Inc. | Pennsylvania |
| SenecaGlobal, Inc. | Illinois |
| Senecio Corporation | Ohio |
| Senet | New Hampshire |
| Senex Biotechnology | South Carolina |
| Sengenics Corporation, LLC | Massachusetts |
| SEngine Precision Medicine | Washington |
| Senhwa Biosciences, Inc. | |
| SeniorTech, LLC | Tennessee |
| Seno Medical | Texas |
| Senra Systems | |
| Senroc Technologies | Colorado |
| Sensagrate | Arizona |
| Sensaphone | Pennsylvania |
| Sensar Marine | |
| Sensata INSIGHTS | California |
| Sensata Technologies, Inc. | |
| Sensato Cybersecurity Solutions | Massachusetts |