Marsh, a global insurance broker and risk advisor, has appointed Nick Studer as President and Chief Executive Officer of Marsh Risk, succeeding Martin South, who will take on an enterprise-wide role as Chief Client Officer of Marsh, effective 1st April 2026.
Both Studer and South will continue to serve on the company’s Executive Committee and report to John Doyle, President and CEO of Marsh.
Studer currently serves as CEO of Oliver Wyman and Marsh Management Consulting. He brings nearly three decades of industry experience, having joined Oliver Wyman in 1997, and has served in senior consulting roles across its consumer, industrial, and financial services practices.
He has also served on several cross-industry organisations, including as a founding director of TheCityUK and on the founding advisory board of the FICC Markets Standards Board.
South rejoined Marsh in 2007 and served as CEO of the business in multiple regions, including Asia-Pacific, UK and Ireland, Europe, and US and Canada, before becoming President and CEO of Marsh Risk in 2022.
He initially joined the company in 1985 with Bowring Marsh. He also held leadership roles at Zurich Financial Services, where he was a member of the Group Management Board, responsible for all of Zurich’s operations outside of North America and Europe, and CEO of Zurich’s London operations.
Doyle commented, “Our vision is to make Marsh the most impactful professional services firm in the world. These appointments will help us accelerate growth, increase our agility, unlock additional value for our clients, and realize our vision.
“Nick joined Oliver Wyman nearly 30 years ago, and in the last five years, as its CEO, has driven tremendous growth. His experience advising corporate and public sector leaders on risk and transformation makes Nick the ideal executive to continue Marsh Risk’s market leadership and further its trajectory of growth and service excellence.
“Martin has decades of experience serving clients and driving innovation. He has deep relationships across industries, and as Chief Client Officer, will bring our unique capabilities together to help clients navigate this highly complex macro environment. Martin will also work to apply AI and other new technologies to enhance the client experience. I look forward to the contributions both will continue to make to our clients’ and Marsh’s success.”
Studer said, “I am honored to lead Marsh Risk and delighted to be carrying forward our mission to grow a paradigm-shifting risk advisor, all-connected risk intermediary, and passionate advocate for our clients. This business has always had the most talented and dedicated risk and insurance professionals in the world. With our team, robust data and analytics, and AI-enhanced client experience, we will continue to help clients protect what matters most: their people, assets, and future.”
South added, “A touchstone of Marsh, across all our businesses, is that we put clients at the center of everything we do. With the power and breadth of our expertise and a keen understanding of our clients’ needs, we can serve them like no other professional services firm.
“I am excited for the opportunity to continue to increase our client impact and help to accelerate growth in this new role.”
Marsh revealed that it expects to announce a new CEO of Oliver Wyman and Marsh Management Consulting by 1st April 2026.





