Susan Hooper sits on the boards of Wizz Air and Uber UK alongside her role at the so-called “Brexit department”.
Tim Peake, the first British astronaut to board the International Space Station, will also be a major draw, along with John Bercow, who recently stood down after 10 years in charge of the House of Commons.
Also speaking will be Labour MP Jess Phillips, plus comedian, London Evening Standard columnist and former advisor to Ed Miliband Ayesha Hazarika.