Sustainability is a strategic imperative. Leadership is what turns that imperative into lasting, measurable impact.

Adrien Portafaix

Partner, Consulting, Ernst & Young Advisory

Sustainability strategist. Climate and biodiversity professional. Passionate about inclusive growth. Advocate for purpose-driven business. Lifelong learner.

Adrien is the Sustainability Leader for EY Consulting in France and the Sustainability Leader for Europe West.

He supports clients across private, public, and non-profit sectors in designing and implementing sustainability strategies that create long-term business and societal value.

With over 20 years of experience, he brings deep experience in climate, biodiversity, water resource management and inclusive business models. His approach emphasizes integrating sustainability into core operations through robust materiality assessments and stakeholder engagement. He holds a Postgraduate Certificate in Sustainable Value Chains from the University of Cambridge (CISL) and studied business strategy at ESSEC.

How Adrien is shaping the future with confidence

“I help clients develop tailored sustainability strategies that deliver measurable impact for the environment and society, while creating long-term business value. My work focuses on integrating sustainability across operations, grounded in materiality, science and strategic ambition. I believe every sector can be a driver of positive change – and I support clients in turning that belief into action.”

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