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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.

Founding Directors

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Lee Stewart

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Lee is a best-selling author, seasoned sustainability leader, and founder of ESG Strategy, with over 20 years of global experience spanning Australia, New Zealand, the UK, and Japan

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Ann Austin

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Ann has played pivotal roles in the formation of industry groups such as the Materials and Embodied Carbon Leaders Alliance (MECLA) and the Construction Industry Culture Taskforce (CICT).

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Mark Lyster

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Mark has developed responsible investment frameworks and ESG systems for leading institutions across finance, insurance, and asset management, including CBA, ANZ, IAG, and Colonial First State.

Associates

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Miranda
Siu

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Miranda is passionate about business being a positive driver for change and sustainable business models. 

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Karl

Check

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Karl leverages his extensive expertise to empower organisations in navigating complex issues like climate change.

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Frank
Hubbard

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Frank is a seasoned expert in driving ESG strategies across multiple sectors.

Inspired by our team’s expertise?

Schedule a free call with Lee Stewart, our CEO, to
start the conversation. 

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