• Tenet Healthcare Corporation
• Ramsay Health Care Pty Ltd.
• Asklepios Kliniken GmbH & Co. KGaA
• HCA Healthcare Inc.
• Community Health Systems
Inc
• Ascension Health Inc.
• Mediclinic International PLC
• LifePoint Health Inc. (RCCH Healthcare)
• Universal Health Services Inc. (Ardent Health Services)
• Fresenius Medical Care AG & Co. KGaA