Discover the 2026 Top 250 Sustainability Leaders – from global CSOs and ESG pioneers to climate champions and net zero strategy innovators shaping the future of sustainability excellence.

London, UK – 04 February 2026 – Sustainability Magazine, part of BizClik, has released its highly anticipated Top 250 Sustainability Leaders 2026 ranking.

The annual list recognises the individuals driving real-world impact on climate, ESG and sustainable business transformation, from accelerating decarbonisation to advancing just and inclusive transitions.

This year's ranking highlights leaders who are reshaping sustainability strategy, governance and execution across sectors including finance, technology, manufacturing, retail, energy and the public sphere.

From CSOs embedding climate and nature into core business models, to innovators and practitioners pushing the boundaries of circularity, social impact and systems change, the Top 250 celebrates those defining the future of sustainable leadership.

View the Top 250 Sustainability Leaders.

Alastair ChildNamed #1 in the Top 250 SustainabilityLeaders 2026

Alastair Child claims the top spot in the Top 250 Sustainability Leaders 2026 list for his role in steering Mars toward its ambitious sustainability commitments.

As Chief Sustainability Officer, he leads the company’s global strategy to achieve net zero emissions, advance regenerative agriculture, and drive social impact across its vast value chain.

Under Alastair’s leadership, Mars is embedding climate action, circularity, and equitable sourcing into its business model while fostering a culture of collaboration and accountability.

His approach to sustainability combines measurable impact with long-term vision, positioning Mars as a pioneer in responsible growth and environmental stewardship.

The Top 10 Sustainability Leaders of 2026

• Esther Finidori, Chief Sustainability Officer, Scheider Electric

• Nancy Mahon, Chief Sustainability Officer, The Estée Lauder Companies Inc.

• Ann Tracy, Chief Sustainability Officer, Colgate-Palmolive

• Melanie Nakagawa, Chief Sustainability Officer, Microsoft

• Kate Brandt, Chief Sustainability Officer, Google

• Christina Shim, Chief Sustainability Officer, IBM

• Agustín Delgado Martín, Chief Sustainability Officer, Iberdrola

• Kara Hurst, VP Worldwide Sustainability, Amazon

• Jim Andrew, Chief Sustainability Officer, PepsiCo

• Alastair Child, Chief Sustainability Officer, Mars

View the Top 250 Sustainability Leaders.

“As we move into the second half of the decade of action, the leaders featured in this list are demonstrating that sustainability is not a cost but a catalyst – unlocking innovation, strengthening competitiveness and creating lasting impact. Together, these leaders are proving that a sustainable future is not only possible but essential for business success and societal progress alike.”

– Charlie King, Senior Editor, Sustainability Magazine

What the Top 250 Sustainability Leaders ranking covers

The 2026 list recognises excellence across multiple dimensions of sustainability leadership:

• Seniority & Strategic Responsibility: This criterion assesses the individual’s level of seniority and their direct responsibility for sustainability strategy and execution. Priority is given to leaders who.

• Organisational Scale & Market Impact: This category evaluates the scale, reach, and competitive strength of the organisation’s sustainability footprint, alongside the leader’s role in shaping it.

• Industry Influence & Innovation: This criterion considers the individual’s influence beyond their own organisation and their role in shaping the wider ecosystem.

• Governance, Responsibility & Professional Recognition: A lighter weighting is applied to factors that reflect professional credibility and long-term stewardship.

• Eligibility: The list focuses on senior leaders operating at scale.

Celebrating sustainability trailblazers

“Sustainability has evolved from a boardroom discussion to a defining measure of business performance. The leaders featured in this year’s Top 250 Sustainability Leaders understand that creating long-term value means tackling global challenges with purpose and innovation.

“What sets them apart is courage – the willingness to challenge convention and act decisively in uncertain times. Their leadership reminds us that progress happens when ambition meets accountability.”

— Glen White, CEO, BizClik and Sustainability Magazine

Why it matters

As sustainability continues to shift from a compliance function to a core driver of corporate value and innovation, leadership has become the true measure of impact.

The Top 250 Sustainability Leaders 2026 showcases the individuals shaping the global sustainability agenda – setting new benchmarks in climate strategy, responsible business and long-term transformation.

The full Top 250 Sustainability Leaders 2026 list is now live and ready to explore.

Meet sustainability leaders at Sustainability LIVE events in 2026

Sustainability Magazine will bring together senior sustainability, ESG and climate leaders from across the world at a series of flagship live events in Europe and the US.

Sustainability LIVE: The Net Zero – March 4-5, QEII Centre, London (co-located with Procurement and Supply Chain LIVE)

Sustainability LIVE: The US Summit – April 21-22, Navy Pier, Chicago (co-located with Procurement and Supply Chain LIVE)

Sustainability LIVE: The Leadership Summit- June 25, CodeNode, London

Sustainability LIVE: The London Summit and Awards – September 8-9, London (co-located with Procurement and Supply Chain LIVE)

Sustainability LIVE: The Leadership Summit - September 21, New York City

To register your interest in attending, click here .

About Sustainability LIVE

Sustainability LIVE is BizClik’s global event series for sustainability, ESG, climate and net zero leaders.

The series connects decision-makers with practical insight on decarbonisation, reporting, supply chain sustainability, innovation and the strategies shaping responsible business.

About BizClik

BizClik is a global B2B media and events company producing sector-specific content across technology, sustainability, procurement, fintech, AI and related fields. Through digital magazines, global websites, industry newsletters, webinars and award-winning events, BizClik connects enterprise leaders with executive audiences to support strategic business engagement.

ENDS

Media Contact

Georgia Sweet- Marketing Lead at BizClik

[email protected]