Guillaume Guyard

A data and AI strategist, Guillaume Guyard pioneered the convergence of TV and programmatic buying. His expertise extends beyond just managing data; he specialises in implementing AI products and building the necessary infrastructure that directly drives turnover, optimises costs, and enhances customer experience.

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From CRM to CDO: A Career of Measurable Impact

Guillaume’s career journey is a masterclass in leveraging data for business results. In his current role as Group Head of Analytics, he drives and builds the data & analytics portfolio for the L’Oréal Group. Previously, his foundational work as Chief Digital Officer at Danone is marked by impressive, quantifiable outcomes, including a +200% increase in CRM/Digital operations turnover and a 5-point impact on Brand Equity in just one year.

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‍The Agile & Cross-Functional Leader

A passionate advocate for agile methodologies, Guillaume excels at building and leading multi-competency teams. He is a hands-on leader who fosters a culture of data-driven decision-making, ensuring teams from marketing and retail to UX and IT collaborate effectively to develop best-in-class customer experiences. His expertise extends to building 360-degree customer views across digital, owned, and earned channels.

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An Architect of Data & AI Ecosystems

Guillaume's work is rooted in defining robust governance models and operationalising data strategies. His deep knowledge includes defining GDPR strategies, building and optimising attribution mix models, and identifying long-term digital and data innovations. His strategic vision consistently transforms data from a siloed asset into a powerful engine for business growth.

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