- SUN Behavioral Health
- SUNY Health
- SUNY Upstate Medical University
- Surgery Partners
- Sutter Health
- Tahoe Forest Health System
- Tallahassee Memorial Healthcare
- Tamarack Health
- Tanner Health System
- Taylor Health Care Group
- Telecare Corporation
- Temple University Health System
- Tenet Healthcare Corporation
- Tennessee Department of Mental Health and Substance Abuse
- Tennova Healthcare
- Texas Childrens Hospital
- Texas Department of State Health Services
- Texas Health Resources
- TGH North
- The Brook Hospitals
- The Carle Foundation
- The Carpenter Health Network
- The Childrens Mercy Hospitals and Clinics
- The Christ Hospital Health Network
- The Cleveland Clinic Health System
- ThedaCare
- The Emily Program
- The Hospitals of Providence
- The Metrohealth System
- The Morris Hospital and Healthcare Centers