John Browne (Lord Browne of Madingley) was CEO of BP from 1995-2007, transforming it into one of the world's largest companies. He was knighted in 1998, and made a life peer in 2001.
He is Chairman of L1 Energy, Huawei UK, the Tate Galleries and Donmar Warehouse and has authored the memoir Beyond Business, popular science book Seven Elements that Have Changed the World and The Glass Closet, a commentary on the acceptance and inclusion of LGBT people in business.
Robin Nuttall is a Partner in McKinsey's London office. He leads the Firm's Regulatory and Government Affairs Practice, serving regulators and regulated corporations on strategy and organisational issues across a range of sectors and territories.
Tommy Stadlen is a technology entrepreneur. He is a former McKinsey consultant, and worked on Barack Obama's first presidential campaign. He is a commentator for media outlets in the US and the UK.