What Hamilton, Bermuda based holding company who formerly featured CEO John J Byrne?
White Mountains Insurance Group White Mountains Insurance Group () ) is a financial services holding company based in Hamilton, Bermuda.
John P. Connolly (businessman) John Connolly (born 29 August 1950) is an English businessman. He serves as the chairman of G4S and Amec Foster Wheeler. He was UK Senior Partner and Chief Executive of Deloitte in the UK until his retirement in June 2011.