Press Release
LONDON, February 2, 2026 – Marsh (NYSE: MRSH), a global leader in risk, reinsurance and capital, people and investments, and management consulting, today announced the appointment of Lisa Quest as UK CEO, in addition to her current role as Head of UK and Ireland Oliver Wyman, effective 6 April, 2026. Ms. Quest will be based in London and report to Flavio Piccolomini, CEO, International, Marsh. Ms. Quest succeeds Chris Lay, who is retiring from the business.
In this additional role, Ms. Quest will work with the UK's business CEOs to shape Marsh UK's commercial strategy. She will focus on strengthening and expanding client relationships across Marsh’s four businesses as well as developing innovative, data-driven client solutions that support organisations operating in the UK’s diverse economy.
Ms. Quest joined Oliver Wyman in 2006. Following time as a private equity investor, she returned in 2013, going on to be appointed as Co-Head of the Government and Public Institutions Practice, Europe. In 2023, she was appointed to the additional role of Head of UK and Ireland. Her work draws on her global experience, where she has extensive expertise in areas such as data and analytics, workforce of the future, and organisational design. In addition, she sits on the Canada-UK Chamber of Commerce Board, is a guest lecturer at the London School of Economics’ Centre for Risk and Regulation, and is a Member of the Leadership Council at National Numeracy. Through these roles, Ms. Quest works extensively with HM Government on critical national priorities, including pay equity, defence financing, flood risk and resilience, and has supported the creation of new government bodies, including the National Wealth Fund.
Commenting on Ms. Quest’s appointment, Mr. Piccolomini said: “With her global leadership experience and management consultancy expertise, which has been honed with many of the world’s leading businesses, Lisa is well-placed to steer our growth as we create and deliver exceptional services that support our UK clients and enable them to continue to thrive. Her appointment is testament to the deep bench of talent we have across the firm.”
Ms. Quest added: “The UK is renowned for its creativity, innovation and entrepreneurialism, yet many organisations of all sizes are navigating an increasingly volatile risk landscape. I look forward to working with our colleagues and clients as we turn these risks into opportunities and support their future growth.”
About Guy Carpenter
Guy Carpenter is a business of Marsh (NYSE: MMC), a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $24 billion and more than 90,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information about Guy Carpenter, visit guycarp.com, or follow us on LinkedIn and X.
