Boston-based Liberty Mutual Group is a diversified global insurer and the sixth largest property and casualty insurer in the U.S., based on 2007 direct written premium. The Company also ranks ninety-fourth on the Fortune 500 list of largest corporations in the U.S., based on 2007 revenue. Liberty Mutual Group offers a wide range of insurance products and services, including personal automobile, homeowners, workers compensation, commercial multiple peril, commercial automobile, general liability, global specialty, group disability, assumed reinsurance, fire, and surety. Liberty Mutual Group ...