· European Pediatric Surgeon’s Association (EUPSA)
· Ιδρυτικό μέλος, European Society of Pediatric Endoscopic Surgeons (ESPES)
· German Association of Pediatric Surgery
· British Association of Pediatric Surgeons (BAPS)
· Ελληνική Εταιρία Χειρουργών Παίδων
· Ιδρυτικό μέλος, Greek Association of Pediatric Urology
· Ιδρυτικό μέλος, Cypriot Association of Pediatric Surgery
· International Society of Pediatric Surgical Oncology (IPSO)
· British Association of Pediatric Endoscopic Surgeons (BAPES)
· European Board of Pediatric Surgery, UEMS (Union Européenne des Médicins Spécialistes)
· German Association of Surgery
· Surgical Media Group (German Association of Surgery)
· International Pediatric Endosurgery Group (IPEG) (μέχρι 2011)
· Swiss Association of Pediatric Surgery (μέχρι 2012)