About Us

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At ESG Strategy, sustainability isn’t just what we do, it’s who we are. Founded by industry leaders Lee Stewart, Ann Austin, and Mark Lyster, our team combines passion with a proven track record of driving transformative change in some of the world’s most influential companies. We understand the pressures of a rapidly evolving world and are here to help your business not only adapt but thrive.

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Who We Are

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With decades of experience as former heads of sustainability, we know firsthand the challenges businesses face. Our tailored strategies integrate sustainability into your operations, empowering leaders and building in-house expertise to create lasting growth, resilience, and success.

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Meet our Team

​ESG Strategy unites global experts with deep industry knowledge in sustainability, ESG risk, and climate action. Our team has led award-winning projects across diverse sectors and is driven by a shared mission: making sustainability practical, impactful, and achievable.