St. Jude Children's Research Hospital
Albany Molecular Research Inc (AMRI)
Albertina Kerr Centers
Ardent Health Services LLC
Baylor Medical Center at Frisco (BMCF)
Behavioral Health Group (BHG)
Berkshire Health Systems, Inc.
Bio-Reference Laboratories, Inc.
Blue Cross Blue Shield of VT
Buckinghamshire Hospitals NHS Trust
Butler Animal Health Supply
California Hospital Association
Catholic Health Care System
Cedars-Sinai Medical Center
Central Ontario Healthcare Procurement Alliance
Central Utah Clinic, P.C.
Centre d'information Rx
Chartered Institute of Environmental Health
Colonial Services Board
Community Care Inc.
Cookeville Regional Medical Center
Ector County Hospital District (dba Medical Center Hospital)
Eye Specialists of Mid-Florida
Family Health Centers of San Diego
Gibraltar Health Authority (GHA)
Hertfordshire Primary Care Trust (PCT)
Huntsville Memorial Hospital
Ikaria Holdings, Inc.
IPC The Hospitalist Company, Inc.
Joslin Diabetes Center
Kettering Health Network
Lakeside Health System
Lee Memorial Health Systems
Lippische Nervenklinik Dr Spernau GmbH
Lone Star Circle of Care
Long Beach Medical Center
Lubbock County Hospital District (UMC Health System)
Mercy Health System
Metro Heart Group
Muskoka Algonquin Healthcare (MAHC)
Nevada Cancer Institute
New Mexico Department of Health
Niagara Health System
Nightingale Healthenet Corp
Northern Hospital of Surry County
Par Pharmaceutical Companies, Inc.
PRO2 Respiratory Services, LLC.
Salix Pharmaceuticals, Inc.
Sault Area Hospital
SDI Health, LLC - dba: Verispan, LLC
Senior Whole Health, LLC
Southern Nevada Health District
St. Jude Children's Research Hospital, Inc.
Sunnybrook Health Sciences Centre
SXC Health Solutions Inc.
Symbion Health Ltd
Tenet HealthSystem SL, Inc (dba Saint Louis University Hospital)
Texas Health Center for Diagnostics and Surgery
The George Institute For International Health
Total Longterm Care, Inc.
Trinity Mother Frances Health System
University Health Systems
University Hospital Birmingham NHS Foundation Trust
WellMed Medical Management
Winchester & Eastleigh Healthcare NHS Trust