Country | Center | Investigator | Services |
| Finland | University of Helsinki | Taneli Raivio | Sanger, Exome, Targeted High-Throughput Sequencing |
| France | Genetic Centre Robert Debré, Paris | Nicolas de Roux | Sanger, Exome, Targeted High-Throughput Sequencing, Linkage |
| France | Hôpital Cochin, Paris | Catherine Dode | Sanger, Exome, Targeted High-Throughput Sequencing |
| France | Paris sud Bicetre | Anne Mantel | Sanger, Exome, Targeted High-Throughput Sequencing |
| Italy | University of Milan, Instituto Auxologico | Luca Persani | Sanger, Exome, Targeted High-Throughput Sequencing |
| Switzerland | Centre Hospitalier Vaudois Universitaire, Lausanne | Nelly Pitteloud | Sanger, Exome, Targeted High-Throughput Sequencing |
| United Kingdom | William Harvey Research Institute, London | Leo Dunkel | Sanger, Exome, Targeted High-Throughput Sequencing |