| 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 Saint-Luc | Belgium | Brussel | Dominique Maiter |
| Hôpital Universitaire de Bruxelles (HUDERF-Erasme) | Belgium | Brussel | Cécile Brachet, Natacha Driessens, Aglaia Kyrilli |
| UZ Brussels | Belgium | Brussel | Jesse van Besien |
| UZ Antwerpen | Belgium | Edegem | Christophe De Block, Dirk Ysebaert |
| Department of Molecular Genetics, Function and Therapy, The Cyprus Institute of Neurology and Genetics1. | Cyprus | Nicosia | Leonidas Phylactou, Vassos Neocleous, Nicos Skordis |
| General University Hospital in Prague | Czechia | Prague | Michal Krsek, Jana Jezkova |
| University Hospital Motol | Czechia | Prague | Klara Rozenkova, Stanislava Kolouskova |
| Aarhus University Hospital | Denmark | Aarhus | Esben Søndergaard |
| Copenhagen University Hospital, Rigshospitalet | Denmark | Copenhagen | Anders Juul |
| Odense Universitetshospital | Denmark | Odense | Henrik Christesen, Marianne Skovsager Andersen |
| HUS Helsinki University Hospital, Hospital District of Helsinki and Uusimaa (EndoERN_FIN) | Finland | Helsinki | Niina Matikainen |
| Assistance Publique – Consortium Cochin, Robert Debré, Necker, St Antoine, La Pitié Salpétrière, Trousseau University Hospitals | France | Paris | Jérôme Bertherat |
| Charité Universitätsmedizin Berlin | Germany | Berlin | Uta Neumann, Knut Mai |
| University Hospital Essen – Center for Rare Endocrine Diseases | Germany | Essen | Nicole Unger, Frank Weber, Cordula Kiewert |
| Ludwig-Maximilian-University Munich | Germany | Munchen | Nicole Reisch, Martin Reincke, Heinrich Schmidt |
| Universitätsklinikum Ulm (Ulm University Medical Center) | Germany | Ulm | Martin Wabitsch, Julia von Schnurbein |
| University Hospital Würzburg | Germany | Wuerzburg | Martin Fassnacht, Stefanie Hahner |
| Aghia Sophia Children’s Hospital | Greece | Athens | Christina Kanaka-Gantenbein, Evangelia Charmandari, Maria Mpinou |
| Evangelismos General Hospital | Greece | Athens | Dimitra-Argyro Vassiliadi |
| General Hospital of Athens “LAIKO” | Greece | Athens | Eva Kassi, Gregory Kaltsas, Anna Angelousi |
| Semmelweis University | Hungary | Budapest | Miklos Toth |
| Beaumont Hospital & Children’s Health Ireland | Ireland | Dublin | Mark Sherlock |
| IRCCS Azienda Ospedaliero-Universitaria di Bologna | Italy | Bologna | Federico Baronio, Guido Di Dalmazi, Alessandra Gambineri, Rita Ortolano, Soara Menabò |
| Azienda Ospedaliero Universitaria di Ferrara | Italy | Ferrara | Maria Chiara Zatelli, Maria Rosaria Ambrosio |
| University Hospital Florence | Italy | Florence | Csilla Krausz, Mario Maggi, Letizia Canu |
| AOU policlinico “G.Martino” Messina | Italy | Messina | Salvatore Cannavò, Francesco Ferraù, Malgorzata Gabriela Wasniewska, Tommaso Aversa |
| Istituto Auxologico Italiano – Istituto di Ricovero e Cura a Carattere Scientifico | Italy | Milan | Luca Persani, Valentina Morelli, Carmen Aresta, Alberto Ambrogio |
| Ospedale San Raffaele | Italy | Milan | Gianni Russo, Roberto Lanzi, Paola Loli, Andrea Giustina |
| AOU di Modena | Italy | Modena | Vincenzo Rochira, Sara De Vincentis |
| AOU Università degli Studi della Campania “Luigi Vanvitelli”, Napoli | Italy | Naples | Caterina Luongo, Giuseppe Bellastella, Anna Grandone |
| Azienda Ospedaliera Universitaria “Federico II”, Napoli | Italy | Naples | Rosario Pivonello, Maria Cristina de Martino, Mariacarolina Salerno, Donatella Capalbo, Raffaella Di Mase |
| Azienda Ospedaliera di Padova (AOP) | Italy | Padova | Carla Scaroni, Laura Guazzarotti, Filippo Ceccato |
| Azienda Unità Sanitaria Locale-IRCCS of Reggio Emilia | Italy | Reggio Emilia | Chiara Grasselli |
| Azienda Ospedaliero-Universitaria Policlinico Umberto I | Italy | Roma | Andrea Isidori |
| Azienda Ospedaliero Universitaria Città della Salute e della Scienza di Torino | Italy | Turin | Roberta Giordano, Luisa Desanctis |
| AOUI di Verona | Italy | Verona | Franco Antoniazzi, Paolo Cavarzere |
| Childrens Clinical University Hospital1. | Latvia | Rīga | Iveta Dzivite-Krisane |
| Pauls Stradins Clinical University Hospital1. | Latvia | Riga | Lauma Jaunozola |
| Hospital of Lithuanian University of Health Sciences Kauno Klinikos | Lithuania | Kaunas | Lina Barsiene, Giedre Mockeviciene |
| Amsterdam UMC | Netherlands | Amsterdam | Koen Dreijerink, Martijn Finken |
| University Medical Center Groningen | Netherlands | Groningen | Michiel Kerstens |
| Leiden University Medical Center | Netherlands | Leiden | Noortje Corssmit, Michiel Nijhoff |
| Radboud University Nijmegen Medical Center – including Amalia’s children Hospital | Netherlands | Nijmegen | Henri Timmers, Nike Stikkelbroeck, Hedi Claahsen |
| Erasmus MC: University Medical Center Rotterdam | Netherlands | Rotterdam | Richard Feelders |
| Máxima Medisch Centrum | Netherlands | Veldhoven | Karin Blijdorp, Pleun Wouters - van Poppel, |
| Helse Bergen HF, Haukeland University Hospital1. | Norway | Bergen | Eyestein Husebye, Helge Ræder |
| Spitalul Clinic de Urgenta pentru Copii, Cluj-Napoca | Romania | Cluj-Napoca | Simona Bucerzan, Camelia Alkhzouz, Diana Miclea |
| Spitalul Clinic Judetean de Urgenta Cluj (Cluj County Emergency Clinical Hospital) | Romania | Cluj-Napoca | Carmen Emanuela Georgescu, Cristina Alina Silaghi |
| University Hospital Martin, Dept of Paediatrics of Jessenius Medical Faculty Comenius University1. | Slovakia | Martin | Jarmila Vojtková |
| University Medical Centre Ljubljana | Slovenia | Ljubljana | Urh Groselj, Tomaz Kocjan, Tina Krokter Kogoj, Primoz Kotnik, Jasna Šuput Omladič |
| Hospital Universitari Vall d’Hebron | Spain | Barcelona | Maria Clemente, Anna Casteras |
| Sahlgrenska University Hospital | Sweden | Gothenburg | Gudmundur Johannsson, Jovanna Dahlgren |
| Karolinska University Hospital | Sweden | Stockholm | Svetlana Lajic, Sophie Bensing, Henrik Falhammer |
