Liberty Insurance Singapore is a 100% owned strategic business unit of Liberty Mutual Insurance Group. Headquartered in Boston, Liberty Mutual Insurance Group is a diversified global insurer and the 3rd largest property and casualty insurer in the U.S based on 2013 direct written premium. It ranks 78th on the Fortune 500 list of largest corporations in the U.S. based on 2014 revenue. As of 31 December 2015, Liberty Mutual Insurance Group had US$121.7 billion in consolidated assets, US$102.5 billion in consolidated liabilities and US$37.6 billion in annual consolidated revenue.