• American Association for the Study of Liver Disease (AASLD)
• American Association of Kidney Patients
• American Board of Transplant Certification (ABTC)
• American Society for Histocompatibility and Immunogenics (ASHI)
• American Society for Nephrology
• American Society of Transplant Surgeons
• American Society of Transplantation
• British Transplant Society
• British Columbia Transplant
• Canadian Association of Transplantation (CAT)
• Canadian Society of Transplantation (CST)
• European Society for Paediatric Gastroenterology Hepatology and Nutrition (ESPGHAN)
• European Society of Organ Transplantation
• European Transplant Coordinators Association (ETCO)
• International Society of Heart and Lung Transplantation (ISHLT)
• International Pediatric Nephrology Association
• International Liver Transplantation Society
• International Transplant Coordinators Society
• International Transplant Nurses Association
• North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN)
• North American Transplant Coordinators Organization (NATCO)
• The Transplant Society of Australia and New Zealand (TSANZ)
• Transplant Communications, Inc.
• Transplant News Network
• Transweb
• Turkish Transplantation Society
• United Network for Organ Sharing