SESAMm is pleased to welcome Guy Gresham to its Advisory Board. A globally recognized capital-markets strategist and former Group Head of Global Investor Relations Advisory at BNY, Guy brings more than two decades of experience in global financial services, specializing in equity capital markets, investor relations, and sustainability. Originally from New Zealand and now based in New York, he has deep expertise in regulatory compliance, ESG governance, and aligning global standards with business operations. His presence in North America will further strengthen SESAMm’s footprint in the U.S. market at a time of rapidly evolving expectations around sustainability and reputational risk.
Guy’s experience advising companies across more than 50 countries, combined with his understanding of the North American market, brings a tremendous amount of insight and credibility,” said Sylvain Forté, CEO of SESAMm. “He has a remarkable ability to bridge sustainability, regulation, and capital-markets strategy, and we’re delighted to welcome him to our advisory board.”
During his time leading BNY’s Global Investor Relations Advisory group, Guy oversaw a global team supporting issuers across multiple markets and guided companies through major shifts in regulation, geopolitics, and capital markets expectations. As co-chair of BNY’s enterprise ESG Advisory Council and the Sustainable Client Solutions Working Group, he advised executive management on governance and regulatory requirements, embedding sustainability into core decision-making and risk management.
Today, Guy sits on the advisory committee of Sedex, a leading global supply-chain sustainability data platform, and serves as a non-executive director at Strategy&Ops, an international consultancy focused on sustainability and digital transformation. He holds an MBA from Cornell University, a BA (Hons) in International Relations from Victoria University of Wellington, and is a 2026 Digital Statecraft Fellow at Cambridge University.
“The growing convergence of sustainability, regulation, and technology is reshaping how companies engage with investors and manage risk,” said Guy Gresham. “SESAMm is at the forefront of this transition, using advanced AI to surface insights that were previously inaccessible. I’m delighted to support the team as they scale these capabilities globally.”
We’re thrilled to welcome Guy to SESAMm’s Advisory Board and look forward to working together as we continue advancing AI-powered ESG and reputational risk analysis worldwide, including expanding our partnerships and presence across North America.
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