| Medical University of Vienna,Center for Rare Endocrinologic Diseases / Dpt. of Internal Medicine III,1. | Austria | Vienna | Greisa Vila |
| Klinikum Wels-Grieskirchen,Center for Pediatric Endocrinology / Dpt. of Pediatrics1. | Austria | Wels | Walter Bonfig |
| Cliniques universitaires de Bruxelles – Hôpital Erasme | Belgio | Brussel | Cécile Brachet, Agnès Burniat, France Devuyst |
| Cliniques universitaires Saint-Luc | Belgio | Brussel | Dominique Maiter |
| UZ Brussels | Belgio | Brussel | David Unuane |
| Centre Hospitalier Universitaire de Liège | Belgio | Liege | Albert Beckers, Patrick Petrossians, Adrian F. Daly |
| USHATE “ACAD IVAN Penchev” | Bulgaria | Sofia | Sabina Zaharieva, Atanaska Elenkova, Vladimir Vasilev |
| Il MHAT “Sveta Marina” | Bulgaria | Varna | Violeta Iotova, Mila Boyadzhieva, Yuliya Bazadarska |
| Department of Molecular Genetics, Function and Therapy, The Cyprus Institute of Neurology and Genetics1. | Cipro | Nicosia | Leonidas Phylactou, Vassos Neocleous, Nicos Skordis |
| University Hospital Motol | Repubblica Ceca | Prague | Jan Lebl, Lukas Plachy |
| Aarhus University Hospital | Danimarca | Aarhus | Jens Otto Lunde Jørgensen |
| Copenhagen University Hospital, Rigshospitalet | Danimarca | Copenhagen | Anders Juul, , |
| Tartu University Hospital | Estonia | Tartu | Vallo Tillmann, Vallo Volke |
| Assistance Publique – Hôpitaux de Marseille | Francia | Marseille | Thierry Brue |
| Assistance Publique – Consortium Cochin, Robert Debré, Necker, St Antoine, La Pitié Salpétrière, Trousseau University Hospitals | Francia | Paris | Jerome Bertherat, Juliane Léger, Irene Netchine, Sophie Christin-Maitre |
| Hôpital Bicêtre | Francia | Paris | Philippe Chanson |
| Charité Universitätsmedizin Berlin | Germania | Berlin | Joachim Spranger |
| University Hospital Essen – Center for Rare Endocrine Diseases | Germania | Essen | Nicole Unger, Cordula Kiewert, Ilonka Kreitschmann-Andermahr |
| Ludwig-Maximilian-University Munich | Germania | Munchen | Jochen Schopohl, Katharina Schilbach |
| University Hospital Würzburg | Germania | Wuerzburg | Martin Fassnacht, Timo Deutschbein, Katrin Ergezinger |
| Azienda Ospedaliera Sant’Orsola Malpighi | Italia | Bologna | Federico Baronio, Stefano Zucchini, Danilo Ribichini |
| IRCCS A.O.U San Martino – Genova – (IT5) | Italia | Genua | Diego Ferone, Federico Gatto |
| Ospedale San Raffaele | Italia | Milan | Gianni Russo, Gabriella Pozzobon, Stefano Frara |
| Istituto Auxologico Italiano – Istituto di Ricovero e Cura a Carattere Scientifico | Italia | Milano | Luca Persani, Marco Bonomi, Giovanni Vitale |
| Azienda Ospedaliera Universitaria “Federico II”, Napoli | Italia | Napels | Rosario Pivonello, Carolina di Somma, Renata Simona Auriemma |
| Azienda Ospedaliera di Padova (AOP) | Italia | Padova | Carla Scaroni, Laura Guazzarotti, Filippo Ceccato |
| Azienda Ospedaliero Universitaria Città della Salute e della Scienza di Torino | Italia | Turin | Luisa Desanctis, Silvia Grottoli, Patrizia Matarazzo |
| Pauls Stradins Clinical University Hospital1. | Lettonia | Riga | Lauma Jaunozola |
| Hospital of Lithuanian University of Health Sciences Kauno Klinikos | Lituania | Kaunas | Ruta Kriksciuniene, Robertas Knispelis |
| Oslo University Hospital HF1. | Norvegia | Oslo | Jens Bollerslev |
| Amsterdam-UMC, location AMC | Paesi Bassi | Amsterdam | Johannes Romijn, Madeleine Drent, Jantien Hoogmoed |
| University Medical Center Groningen | Paesi Bassi | Groningen | Melanie van der Klauw |
| Leiden University Medical Center | Paesi Bassi | Leiden | Nienke Biermasz, Alberto Pereira |
| Radboud University Nijmegen Medical Center – Amalia’s children Hospital incluso | Paesi Bassi | Nijmegen | Annenienke van de Ven |
| Erasmus MC: University Medical Center Rotterdam | Paesi Bassi | Rotterdam | Sebastian Neggers |
| University Hospitals Birmingham – NHS Foundation Trust | Regno Unito | Birmingham | Niki Karavitaki, Vrinda Saraff |
| University Hospitals Bristol – NHS Foundation Trust | Regno Unito | Bristol | Liz Crowne |
| NHS Greater Glasgow and Clyde Board | Regno Unito | Glasgow | Guftar Shaikh |
| Alder Hey Children’s Hospital – NHS Foundation Trust | Regno Unito | Liverpool | Jo Blair |
| Barts Health – NHS Foundation Trust | Regno Unito | London | Marta Korbonits |
| Great Ormond Street Hospital/UCLH – NHS Foundation Trust | Regno Unito | London | Mehul Dattani, Harshini Katugampola |
| Central Manchester University Hospitals – NHS Foundation Trust | Regno Unito | Manchester | Peter Clayton, Peter Trainer |
| University Hospital Southampton – NHS Foundation Trust | Regno Unito | Southampton | Justin Davies, Ma'en Al-Mrayat |
| Královské Vinohrady University Hospital di Praga | Repubblica Ceca | Prague | Ludmila Brunerova |
| University Hospital Martin, Dept of Paediatrics of Jessenius Medical Faculty Comenius University1. | Slovacchia | Martin | Jarmila Vojtková |
| University Medical Centre Ljubljana | Slovenia | Ljubljana | Tomaz Kocjan, Primoz Kotnik, Magdalena Avblej Stefanija |
| Hospital Universitari Vall d’Hebron | Spagna | Barcelona | Maria Clemente, Ariadna Campos, Bettina Biagetti |
| Hospital Universitario Cruces | Spagna | Bilbao | Sonia Gaztambide, Luis Castano, Itxaso Rica |
| Karolinska University Hospital | Svezia | Stockholm | Charlotte Höybye, Maria Halldin Stenlid |
| Semmelweis University | Ungheria | Budapest | Nikolette Szücs |