T. Michael Miller, Chief Executive Officer, Global Specialty Lines

In June 2021, Mr. Miller was appointed Chief Executive Officer of Intact’s Global Specialty Lines including operations in North America, through Intact Specialty Solutions, and in the United Kingdom, through RSA Insurance.


Mr. Miller joined Intact Financial Corporation in September 2017 as President of Intact’s North American specialty insurance business through the acquisition of OneBeacon Insurance Group, Ltd. Prior to the acquisition, he served as OneBeacon’s President and CEO since 2005.


Mr. Miller has over 40 years of experience in the property-casualty industry. He began his career in underwriting at Chubb in 1981, where he held roles of increasing responsibility. After 14 years, he joined the St. Paul Travelers, where he ultimately served as co-chief operating officer overseeing the company’s specialty business and field operations. Over his 10 years with the company, he held senior leadership positions in various specialty businesses and managed operations in the U.S., Canada and Europe. He joined OneBeacon in April 2005 as its Chief Operating Officer, and was appointed President and CEO in July 2005.


Mr. Miller earned a bachelor’s degree in political science from Allegheny College. He is a past Chairman and current member of both the American Insurance Association Board of Directors and the Insurance Information Institute Board of Directors, and a member of the P&C CEO Roundtable. Mr. Miller is also a past director of the Insurance Federation of Minnesota and the Science Museum of Minnesota, as well as the United Way of Massachusetts.