That is one giant company..wow! Liberty Mutual Group, more commonly known by the name of its primary line of business Liberty Mutual, is a diversified global insurer and the fifth largest property and casualty insurer in the United States based on 2009 direct written premium. They are the 71st company on the Fortune 500 list for 2010. Based in Boston, Massachusetts, they employ over 45,000 people in more than 900 locations throughout the world. As of December 31, 2008 Liberty Mutual Group had $104.3 billion in consolidated assets, $94.2 billion in consolidated liabilities, and $28.9 billion in annual consolidated revenue. The company, founded in 1912, 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, fire and surety.