- Avon and Wiltshire Mental Health Partnership NHS Trust
- Dorset County Hospital NHS Foundation Trust
- Dorset HealthCare University NHS Foundation Trust
- Hampshire Hospitals NHS Foundation Trust
- Isle of Wight NHS Trust
- Jersey General Hospital, States of Jersey
- Poole Hospital NHS Foundation Trust
- Portsmouth Hospitals NHS Trust
- Salisbury NHS Foundation Trust
- Solent NHS Trust
- Southern Health NHS Foundation Trust
- Sussex Partnership NHS Foundation Trust
- The Royal Bournemouth and Christchurch Hospitals NHS Foundation Trust
- Western Sussex Hospitals NHS Foundation Trust
- University Hospital Southampton NHS Foundation Trust