BDO USA, LLP is a professional services firm providing assurance, tax, and advisory services to a wide range of publicly traded and privately held companies. The company was founded in 1910 and is headquartered in Chicago, Illinois. BDO USA has more than 60 offices and over 5,000 employees throughout the United States. The company is a member of the BDO International network, which has more than 1,500 offices in over 160 countries.