Agnès Pérez-Millan*, Sergi Borrego-Écija*, John C van Swieten, Lize Jiskoot, Fermin Moreno, Robert Laforce, Caroline Graff, Mario Masellis, Maria Carmela Tartaglia, James B Rowe, Barbara Borroni, Elizabeth Finger, Matthis Synofzik, Daniela Galimberti, Rik Vandenberghe, Alexandre de Mendonça, Chris R Butler, Alexander Gerhard, Simon Ducharme, Isabelle Le Ber, Isabel Santana, Florence Pasquier, Johannes Levin, Markus Otto, Sandro Sorbi, Pietro Tiraboschi, Harro Seelaar, Tobias Langheinrich, Jonathan D Rohrer, Roser Sala-Llonch, Raquel Sánchez-Valle & The Genetic FTD Initiative, GENFI (* equivalent contribution).