Mary Johnstone-Louis
Senior Fellow in Management Practice, Saïd Business School, University of Oxford
Mary Johnstone-Louis is a Senior Fellow in Management Practice at Saïd Business School, University of Oxford. She has served as Chair of B Lab UK and board member of Blueprint for Better Business, and in multiple advisory roles. Her work has been published in Harvard Business Review and a range of leading management journals. A regular speaker and panelist, Mary is co-author of the Financial Times Guide to Sustainable Business (2025) and co-Director of the Oxford Sustainable Business Programme.