Liberty Mutual Holding Company operates Liberty Mutual Group, which is one of the largest property and casualty insurers in the United States. Founded in 1912, the subsidiary has annual sales revenue of more than $28 billion. It employs over 45,000 professionals in nearly 900 offices throughout the world. Liberty Mutual Group offers a range of insurance products and services, including personal automobile, homeowners, workers compensation, commercial multiple peril, general liability, global specialty and group disability. The subsidiary also provides fire and surety insurance plans. It offers a variety of traditional and variable life insurance and annuity products. Liberty Mutual Group additionally provides personal and commercial insurance products and services to independent agents and brokers. The subsidiary maintains operations in Argentina, Brazil, Chile, China, Colombia, Hong Kong, Poland, Portugal and Singapore.