We've sat in the sustainability seat. We know what works.
ESG Strategy was founded by Lee Stewart, a senior sustainability leader with 20+ years inside complex organisations, translating ESG into governance, risk control, and commercial outcomes.
Book a Strategy CallIn 30 minutes, we'll clarify what's urgent, what's realistic, and what a practical 90-day plan looks like.
Our Mission
Our mission is to make sustainability accessible and actionable for Australian mid-market enterprises. We are committed to creating and supporting 1,000 new sustainability leaders by the end of 2028, embedding ESG capability that reduces environmental impact, strengthens governance, and creates lasting value for businesses, their stakeholders, and the communities they serve.
Lee Stewart
Founder & Principal Consultant
Credentials
- Amazon #1 Bestselling Author in 3 categories (Green Business, Sustainable Development, Economic Growth)
- Former Head of Sustainability, Fonterra (New Zealand's largest company)
- Former Head of Sustainability, Fujitsu
- CitySwitch Hall of Fame inductee (2018)
- 20+ years sustainability experience across AU, NZ, UK, Japan, Pacific
- Pro bono sustainability advisor to the Kingdom of Tonga
- Pioneer of the Fractional Chief Sustainability Officer (fCSO) model
Career Timeline
ESG Strategy
Founded boutique sustainability consultancy serving mid-tier Australian enterprises. Author of 'How to Build Sustainability into Your Business Strategy'.
Fonterra
Led sustainability strategy for New Zealand's largest company
Fujitsu
Developed enterprise sustainability programs across Asia-Pacific
Our Approach
We don't deliver reports and disappear. We embed in your team, execute alongside you, and build capability that stays when we leave.
What you can expect
- Clear owners, measurable KPIs, and a governance cadence your board can use
- A practical 90-day plan that prioritises what matters (not everything)
- Capability uplift so ESG doesn't depend on one person
Deep experience across industries
Supply chain, retail, infrastructure, finance
Trusted by boards and regulators
Governance expertise at the highest levels
Practical, embedded approach
We don't just advise, we deliver alongside you
Not just consultants
We've been the CSO, we know what works
Our Associates
We collaborate with a network of exceptionally talented professionals to deliver outstanding results for our clients.
Karl Check
Climate Risk & Scenario Analysis
Climate risk and opportunity assessment, scenario analysis, and transition planning to support resilient strategy and decision-making.
Frank Hubbard
Tourism & Operations (ISO 14001)
Hotels specialist with diverse manufacturing experience. Delivers practical ESG implementation across complex sites and teams. Extensive background in tourism certification and Environmental Management Systems (ISO 14001).
Miranda Siu
Reporting, Carbon Accounting & Climate Governance
Chartered Accountant specialising in sustainability reporting, carbon accounting, and climate risk governance, bringing audit-grade discipline to ESG data and disclosures.
Partners
We work with trusted partners to deliver comprehensive solutions. So you get the right expertise, without managing multiple advisors.
"Partnering with ESG Strategy has allowed us to offer our clients comprehensive sustainability solutions alongside our engineering expertise."
Book a Strategy Call.
Bring your current situation, ASRS readiness, customer pressure, reporting, targets, or 'where do we start?'. We'll help you clarify priorities and the next practical steps.
Book a Strategy Call