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.
Michael P. Green Michael Philip Green (born 2 December 1947) is a British businessman and psychotherapist, who is currently the owner of Tangent Communications. He was previously the chairman of Carlton Communications, until it merged with Granada to form ITV plc.