- Coeliac City
- American Association for the Study of Liver Diseases (AASLD)
- American College of Gastroenterology
- American Gastroenterological Association (AGA)
- American Society for Parenteral and Enteral Nutrition (ASPEN)
- American Society of Gastrointestinal Endoscopy (ASGE)
- American Society of Colon and Rectal Surgeons
- Association of Coloproctology of Great Britain and Ireland (ACPGBI)
- Association of National European and Mediterranean Societies of Gastroenterology (ASNEMGE)
- Association for Perioperative Practice
- Association of Upper Gastrointestinal Surgeons for Great Britain and Ireland (AUGIS)
- British Association for the Study of the Liver (BASL)
- British Association for Parenteral and Enteral Nutrition (BAPEN)
- British Dietetic Association
- British Society of Paediatric Gastroenterology Hepatology and Nutrition
- Canadian Association of Gastroenterology
- European Association for the Study of the Liver
- European Crohn’s and Colitis Organization (ECCO)
- European Digestive Motility Centre
- European Group for Endoscopic Ultrasonography
- European Society for Clinical Nutrition and Metabolism (ESPEN)
- European Society for Neurogastroenterology and Motility
- European Society of Gastrointestinal Endoscopy (ESGE)
- European Society of Gastroenterology and Endoscopy Nurses and Associates (ESGENA)
- World Gastroenterology Organisation (WGO)
- The National Association for Colitis and Crohn’s Disease (NACC)