John O'Brien MBE, based in London, UK, is an advisor to business, non-profits, and government bodies on purpose, its activation, organizational culture, partnerships and performance change globally. He is a senior purpose strategist and EMEA managing partner of Omnicom's ONE HUNDRED agency collective.David Gallagher, based in London, UK, heads international growth and development for Omnicom PR Group. He is co-chair of the PRCA Ethics Council, past ICCO president, past Cannes Lions jury president and serves on the court of the London School for Hygiene & Tropical Medicine, among other advisory boards.