Specialist insurer Markel International appointed a veteran underwriter to its Marine team. Guy Carpenter & Company promoted one executive and hired another for its Bermuda operations.


Markel International appointed Debbie O’Sullivan as senior yacht underwriter on its Marine team.

Based in New Jersey, she will focus on writing larger U.S. yachts for the specialist insurer with values typically between $2 million and $25 million. O’Sullivan will join Mike Wimbridge, senior yacht underwriter, and Chris Lytton, assistant yacht underwriter, to form a team of three handling large yacht risks and meeting worldwide demand.

O’Sullivan is a 35-year industry veteran in the marine area and started writing marine risks at CIGNA Corporation. She moved to Chubb in 1986 and in 1998 was appointed as vice president for North American yacht underwriting, product and pricing manager.


Guy Carpenter & Company promoted John Fletcher to become chairman of the firm’s Bermuda operations, effective immediately.

Fletcher was most recently head of Guy Carpenter’s Property Retrocessional practice in Bermuda. In his new role, he is responsible for the development of new business and overseeing the activities of the Casualty, Specialty and Retrocessional teams in the region. He reports to Kevin Fisher, president of Global Specialties at Guy Carpenter.

Fletcher has 30 years of reinsurance industry experience, working exclusively at Guy Carpenter. He joined the firm in 1988 and during his career has worked primarily in the property retrocession market both in London and Bermuda, where he has been based since 2013.

In addition, Guy Carpenter appointed James Morris to the Bermuda team as senior vice president and actuarial analyst. He joins the Global Property Specialty team and provides broking and analytical services to clients and markets both in Bermuda and on a global basis. Morris joins Guy Carpenter from Aon Bermuda, where he was senior technical reinsurance analyst in the firm’s Global Re Specialty division.

Guy Carpenter is a wholly owned subsidiary of Marsh & McLennan Companies.

Sources: Markel, Guy Carpenter