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.