Career History

Mark D. Lyons is Chairman and CEO of Arch Worldwide Insurance Group. He joined Arch in 2002 and now has nearly 30 years of industry experience. He was most recently, President and Chief Operating Officer at Arch Insurance Group. Before Arch, Mr. Lyons spent eight years at Zurich U.S., encompassing various executive positions in specialties, actuarial, underwriting, corporate operations and information technology.

During his five years at Berkshire Hathaway before Zurich, he served in various executive positions in the Commercial Casualty Division. Prior to Berkshire Hathaway, Mr. Lyons spent over three years at American International Group (AIG), working in both the Domestic Brokerage and AIU Actuarial Departments. His area of focus was the specialty lines of Excess and Umbrella and all Lexington Insurance Company divisions.

Education & Affiliations
BS, Mathematics, Elizabethtown College
Member, American Academy of Actuaries and Associate, Casualty Actuarial Society Executive Program, Kellogg School of Northwestern University

Downloadable Bio (pdf) Mark D. Lyons