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Guillaume is a partner at Ernst & Young Audit with experience in finance, transformation and complex environments.
He advises senior executives and public leaders at critical inflection points, helping them navigate complexity, lead large-scale transformation and unlock sustainable performance. He brings deep knowledge in financial strategy, risk and the delivery of high-impact programs, with a strong focus on territorial dynamics and the intersection between public policy and private sector value creation.
A chartered accountant and statutory auditor, he is recognized for combining rigor, clarity and execution at scale. Guillaume holds an engineering degree from Central Lille Engineering School and an MBA from IAE Lille University School of Management.
How Guillaume is shaping the future with confidence
Guillaume supports global organizations as they navigate complexity and make informed decisions using data, AI and analytics. With a focus on Power & Utilities and Automotive, he helps clients manage risk, respond to transformation challenges and move forward with greater confidence in increasingly complex and dynamic environments.