Marsh McLennan announced the appointment of David Liston as US and Canada Chief Commercial Officer (CCO), effective immediately. He will report to Pat Tomlinson, Marsh McLennan US and Canada CEO and President of Mercer, and Hans van Heukelum, Marsh McLennan global CCO. In this role, Mr. Liston will collaborate with Marsh, Mercer, Guy Carpenter, and Oliver Wyman leaders to foster collaboration and innovation at the intersection of the businesses, maximize client impact, and enhance business growth in the US and Canada.

Mr. Liston brings a wealth of experience to the role. He previously served as Marsh US and Canada Corporate Segment Leader, and recently had an expanded role across Marsh and Mercer, driving mid-market offerings for the region. His appointment follows the transition of Susan Potter to the role of President, Mercer US and Canada earlier this year.

Mr. Liston has held various client-facing and leadership roles during his 30-plus year career at Marsh. He previously served as the US Sales and Marketing Leader, and prior to that was responsible for the New York, New Jersey, and Connecticut region. His extensive experience includes serving as the New York Office Head and the Seattle Office Head for Marsh.

He spent a decade in Florida, specializing in production and client executive roles. He will continue to be based in New York.