- SC&H Capital
- SCAN
- SCAN Foundation
- SCAN Group
- SCAN Health Plan
- Scarp Ridge Capital Partners
- Schmidt Wallace Healthcare
- SCI Construction
- Scioto Valley Guardian
- SCOTUS
- Scripps Gerontology Center
- Seattle Times
- Second Century Tech
- Second Spring Investments
- Secretary of Health and Human Services investigation
- Sector Financial
- SECUR Health Plan
- Secure Medical Transport
- Sedona Trace Health & Wellness Center
- SeekingAlpha