Sustainability Magazine Top 250 Leaders 2026 | Page 47

Dana Haidan
Valerie Smith
TOP 250 LEADERS

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Dana Haidan

Title: Chief Sustainability Officer Company: Virgin Media O2 Industry: Telecommunications
As Chief Sustainability Officer at Virgin Media O2, Dana Haidan leads the delivery of the company’ s Better Connections Plan, which is its commitment to reduce its environmental impact. Prior to her current role, Dana has also led sustainability at Vodafone and Visa, with experience across the financial services, telecommunications and energy industries.

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Valerie Smith

Title: Chief Sustainability Officer Company: Citi Industry: Financial Services
Valerie Smith oversees Citi’ s Sustainability, ESG team and global sustainability commitments. She leads the Sustainable Progress Strategy, including Citi’ s US $ 1tn sustainable finance goal and its net zero emissions by 2050 plan. Valerie acts as an adviser and spokesperson on sustainable finance, climate change, human rights, stakeholder engagement, ESG integration and wider sustainability trends.
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