Leisha John


Leisha John is a CPA with 38 years of experience at EY (Ernst & Young LLP). There, she pioneered the first Americas Director of Environmental Sustainability role from 2008 through her retirement in 2021. In her role, she advised the EY Americas Executive Board on Environmental, Social and Governance (ESG) matters and was responsible for EY’s carbon footprint – measuring, managing, reporting and engaging employees. Currently, she is the Chairwoman of Earthwatch Institute, a global organization that engages citizens in science to promote conservation of our planet so people and businesses can thrive.

Leisha has held a wide range of leadership positions while at EY in both strategy and operations. Prior to her ESG appointment, she was the CEO of EY’s Global Delivery Services (shared services) center in Bangalore, India where she led the global operations from 2004- 2008. Her expertise in operations, workforce development, transformation and multi-stakeholder engagement contributed to billions of dollars of growth at EY. Prior to her CEO role, she served as the Director of Strategy and Innovation for EY’s US Tax practice following many years serving EY’s audit and tax clients in various industries.

Ms. John is a CPA, a LEED AP, a Competent Board ESG Certificate holder, and serves on the Sustainable Business Advisory Council for the University of Miami. 

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