Charles Roxburgh
Second Permanent Secretary to HM Treasury
Jessica Glover
Director of the Trade Secretariat at the UK Cabinet Office
Sir Jeremy Heywood
Senior British civil servant, currently Cabinet Secretary and Head of the Civil Service
Philip Rycroft
Permanent Secretary at the Department for Exiting the European Union
Mark Field
MP for Cities of London and Westminster
Greg Hands
MP for Chelsea and Fulham
Steve Baker
Conservative MP for Wycombe
Greg Clark
MP for Tunbridge Wells and Secretary of State for Business, Energy and Industrial Strategy
David Davis
UK Brexit Minister, Conservative MP for Haltemprice and Howden
Alex Ellis
Director General at the Department for Exiting the European Union, previously ambassador to Brazil