Liberty Mutual Group is an American diversified global insurer and the third-largest property and casualty insurer in the United States. It ranks 77th on the Fortune 100 list of largest corporations in the United States based on 2019 revenue. Based in Boston, Massachusetts, it employs over 45,000 people in more than 900 locations throughout the world. As of December 31, 2020, Liberty Mutual Insurance had $145.377 billion in consolidated assets, $119.420 billion in consolidated liabilities and $43.796 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 insurance and surety.