| Medical University of Vienna,Center for Disorders of Sex Development / Dpt. of Pediatrics1. | Austria | Vienna | Stefan Riedl, |
| Klinikum Wels-Grieskirchen,Center for Pediatric Endocrinology / Dpt. of Pediatrics1. | Austria | Wels | Walter Bonfig |
| Cliniques universitaires Saint-Luc | Belgium | Brussel | Philippe Lysy |
| Hôpital Universitaire de Bruxelles (HUDERF-Erasme) | Belgium | Brussel | Anne Delbaere, Cécile Brachet, Aglaia Kyrilli |
| UZ Brussels | Belgium | Brussel | Inge Gies |
| Ghent University Hospital | Belgium | Ghent | Martine Cools, Guy T’Sjoen |
| UMHAT “Sveta Marina” (Varna) | Bulgaria | Varna | Violeta Iotova, Vilhelm Madenov, Teodora Karamfilova |
| Department of Molecular Genetics, Function and Therapy, The Cyprus Institute of Neurology and Genetics1. | Cyprus | Nicosia | Leonidas Phylactou, Vassos Neocleous, Nicos Skordis |
| University Hospital Motol | Czechia | Prague | Shenali Amaratunga, Jana Malikova |
| Aarhus University Hospital | Denmark | Aarhus | Claus H. Gravholt |
| Copenhagen University Hospital, Rigshospitalet | Denmark | Copenhagen | Anders Juul, Lise Aksglæde |
| Odense Universitetshospital | Denmark | Odense | Henrik Christesen, Marianne Skovsager Andersen |
| Tartu University Hospital | Estonia | Tartu | Vallo Tillmann |
| HUS Helsinki University Hospital, Hospital District of Helsinki and Uusimaa (EndoERN_FIN) | Finland | Helsinki | Sanni Söderlund, Hanna Savolainen-Peltonen |
| CHU Angers | France | Angers | Patrice Rodien |
| Hospices Civils de Lyon | France | Lyon | Gérald Raverot |
| Assistance Publique – Consortium Cochin, Robert Debré, Necker, St Antoine, La Pitié Salpétrière, Trousseau University Hospitals | France | Paris | Anne Bachelot |
| Hôpital Bicêtre | France | Paris | Philippe Chanson |
| Charité Universitätsmedizin Berlin | Germany | Berlin | Uta Neumann |
| Katholisches Klinikum Bochum | Germany | Bochum | Corinna Grasemann, Johannes Dietrich, Michaela Kleber |
| Universitätsklinikum Schleswig-Holstein | Germany | Lubeck | Olaf Hiort, Paul-Martin Holterus, Judith Gebauer |
| Ludwig-Maximilian-University Munich | Germany | Munchen | Nicole Reisch, Matthias Auer |
| Universitätsklinikum Ulm (Ulm University Medical Center) | Germany | Ulm | Martin Wabitsch, Julia von Schnurbein |
| Beaumont Hospital & Children’s Health Ireland | Ireland | Dublin | Susan O’Connell |
| IRCCS Azienda Ospedaliero-Universitaria di Bologna | Italy | Bologna | Federico Baronio, Alessandra Gambineri, Rita Ortolano, Soara Menabò, Carla Pelusi |
| Meyer Children’s Hospital Florence | Italy | Florence | Stefano Stagi |
| University Hospital Florence | Italy | Florence | Csilla Gabriella Krausz, Giulia Rastrelli |
| IRCCS Istituto Giannina Gaslini, Genova | Italy | Genova | Mohamad Maghnie, Giuseppe D’Annunzio |
| Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano | Italy | Milan | Giovanna Mantovani, Claudia Giavoli, Emanuele Ferrante, Eriselda Profka |
| Istituto Auxologico Italiano – Istituto di Ricovero e Cura a Carattere Scientifico | Italy | Milan | Marco Bonomi, Luca Persani, Biagio Cangiano, Elena Galazzi |
| Ospedale San Raffaele | Italy | Milan | Gianni Russo, Andrea Giustina, Manuela Fortunato |
| AOU di Modena | Italy | Modena | Vincenzo Rochira, Sara De Vincentis |
| AOU Università degli Studi della Campania “Luigi Vanvitelli”, Napoli | Italy | Naples | Giuseppe Bellastella, Anna Grandone |
| Azienda Ospedaliera Universitaria “Federico II”, Napoli | Italy | Naples | Rosario Pivonello, Mariacarolina Salerno, Donatella Capalbo, Raffaella Di Mase |
| Azienda Ospedaliera di Padova (AOP) | Italy | Padova | Carla Scaroni, Laura Guazzarotti, Maurizio Iacobone, Caterina Mian |
| Azienda Ospedaliero-Universitaria Policlinico Umberto I | Italy | Roma | Andrea Isidori |
| Azienda Ospedaliero Universitaria Città della Salute e della Scienza di Torino | Italy | Turin | Luisa Desanctis, Giovanna Motta, Roberta Giordano, Patrizia Matarazzo |
| AOUI di Verona | Italy | Verona | Franco Antoniazzi, Paolo Cavarzere |
| Childrens Clinical University Hospital1. | Latvia | Rīga | Iveta Dzivite-Krisane, Inara Kirillova |
| Hospital of Lithuanian University of Health Sciences Kauno Klinikos | Lithuania | Kaunas | Jonas Ceponis, Romualdas Tomas Preiska |
| Amsterdam UMC | Netherlands | Amsterdam | Chantal Wiepjes, Sabine Hannema |
| University Medical Center Groningen | Netherlands | Groningen | Thera Links |
| Leiden University Medical Center | Netherlands | Leiden | |
| Radboud University Nijmegen Medical Center – including Amalia’s children Hospital | Netherlands | Nijmegen | Hedi Claahsen |
| Erasmus MC: University Medical Center Rotterdam | Netherlands | Rotterdam | Leendert Looijenga |
| Saint John Paul II Upper Silesian Child Health Centre, Public Clinical Hospital no.6 of the Medical University of Silesia in Katowice | Poland | Katowice | Aneta Gawlik, Aleksandra Antosz |
| Karol Jonscher’s Clinical Hospital of Poznan University of Medical Sciences | Poland | Poznan | Marek Niedziela, Monika Obara-Moszynska |
| Spitalul Clinic de Urgenta pentru Copii, Cluj-Napoca | Romania | Cluj-Napoca | Simona Bucerzan, Camelia Alkhzouz, Diana Miclea |
| National Institute of Children’s Diseases, Dept. of Paediatrics of Medical Faculty Comenius University1. | Slovakia | Bratislava | Ludmila Kostalova, Eva Vitariusova |
| University Hospital Martin, Dept of Paediatrics of Jessenius Medical Faculty Comenius University1. | Slovakia | Martin | Jarmila Vojtková |
| University Medical Centre Ljubljana | Slovenia | Ljubljana | Magdalena Avblej Stefanija, Primoz Kotnik, Jasna Šuput Omladič |
| Hospital Universitari Vall d’Hebron | Spain | Barcelona | Maria Clemente |
| Sahlgrenska University Hospital | Sweden | Gothenburg | Gudmundur Johannsson, Jovanna Dahlgren |
| Karolinska University Hospital | Sweden | Stockholm | Anna Nordenström, Henrik Falhammer, Angelica Hirschberg |
