Founding signatories, in alphabetical order:
Jonathan Best, former director of Queer Up North International Festival
Julie Bindel, journalist and feminist campaigner
Paul Burston, author
Maureen Chadwick, screenwriter
Beatrix Cambell OBE, writer
James Dreyfus, actor
Eileen Gallagher OBE, television producer
Claire Graham, intersex advocate
Darren Johnson, London Assembly Member 2000-2016
Dr. Jane Clare Jones, writer and philosopher
Kate Harris, former Stonewall supporter
Jane Harris, author
Kristina Harrison, socialist campaigner and transwoman
Philip Hensher, author
Graham Linehan, writer
Ann McManus, screenwriter
Alison Moyet, musician
Ann Sinnott, former Labour councillor
Kathleen Stock, philosopher
Professor Sophie Scott, cognitive neuroscientist
Caroline Spry, television producer
Miranda Yardley, transsexual rights activist