The Dementia Research Centre is supported by Alzheimer’s Research UK, Alzheimer’s Society, Brain Research UK and The Wolfson Foundation. This work was supported by the National Institute for Health Research University College London/Hospitals Biomedical Research Centre, the Leonard Wolfson Experimental Neurology Centre Clinical Research Facility and the UK Dementia Research Institute, which receives its funding from UK Dementia Research Institute Ltd, funded by the UK Medical Research Council, Alzheimer’s Society and Alzheimer’s Research UK. This work was also supported by the EU Joint Programme— Neurodegenerative Disease Research GENFI-PROX grant [2019-02248; to J.D.R., MO, BB, CG, JvS and MS. (latter via DLR/DFG 01ED2008B)]. J.D.R. is supported by the Miriam Marks Brain Research UK Senior Fellowship and has received funding from Medical Research Council Clinician Scientist Fellowship (MR/M008525/1) and the National Institute for Health Research Rare Disease Translational Research Collaboration (BRC149/NS/MH). This work was also supported by the Medical Research Council UK GENFI grant (MR/M023664/1), the Bluefield Project and the EU Joint Programme—Neurodegenerative Disease Research GENFI-PROX grant (2019-02248). Several authors of this publication are members of the European Reference Network for Rare Neurological Diseases - Project ID No 739510. R.C./C.G. are supported by a Frontotemporal Dementia Research Studentships in Memory of David Blechner funded through The National Brain Appeal (RCN 290173). M.B. is supported by a Fellowship award from the Alzheimer’s Society, UK (AS-JF-19a-004-517). M.B.’s work is also supported by the UK Dementia Research Institute which receives its funding from Dementia Research Institute Ltd, funded by the UK Medical Research Council, Alzheimer’s Society and Alzheimer’s Research UK. C.H. was supported by Royal National Institute for Deaf People Dunhill Medical Trust Pauline Ashley Fellowship (PA23_Hardy) and Wellcome Institutional Strategic Support Fund (204841/Z/16/Z). J.C.V.S. was supported by the Dioraphte Foundation grant 09-02-03-00, Association for Frontotemporal Dementias Research Grant 2009, Netherlands Organization for Scientific Research grant HCMI 056-13-018, ZonMw Memorabel (Deltaplan Dementie, project number 733 051 042), Alzheimer Nederland and the Bluefield project. F.M. received funding from the Tau Consortium and the Center for Networked Biomedical Research on Neurodegenerative Disease. R.S-V. is supported by Alzheimer’s Research UK Clinical Research Training Fellowship (ARUK-CRF2017B-2) and has received funding from Fundació Marató de TV3, Spain (grant no. 20143810). C.G. received funding from EU Joint Programme—Neurodegenerative Disease Research -Prefrontals VR Dnr 529-2014-7504, VR 2015-02926 and 2018-02754, the Swedish FTD Inititative-Schörling Foundation, Alzheimer Foundation, Brain Foundation and Stockholm County Council ALF. M.M. has received funding from a Canadian Institute of Health Research operating grant and the Weston Brain Institute and Ontario Brain Institute. J.B.R. has received funding from the Welcome Trust (103838) and is supported by the Cambridge University Centre for Frontotemporal Dementia, the Medical Research Council (SUAG/051 G101400) and the National Institute for Health Research Cambridge Biomedical Research Centre (BRC-1215-20014). E.F. has received funding from a Canadian Institute of Health Research grant #327387. D.G. received support from the EU Joint Programme— Neurodegenerative Disease Research and the Italian Ministry of Health (PreFrontALS) grant 733051042. R.V. has received funding from the Mady Browaeys Fund for Research into Frontotemporal Dementia. M.O. has received funding from Germany’s Federal Ministry of Education and Research (BMBF), @@@FTLDc. J.L. received funding for this work by the Deutsche Forschungsgemeinschaft German Research Foundation under Germany’s Excellence Strategy within the framework of the Munich Cluster for Systems Neurology (EXC 2145 SyNergy—ID 390857198)