UnitedHealth Group Inc. is an American managed health care company based in Minnetonka, Minnesota. It is 6th in the United States on the Fortune 500. UnitedHealth Group offers products and services through two operating businesses, UnitedHealthcare and Optum, both subsidiaries of UnitedHealth Group. Optum is a new business brand of UnitedHealth Group and operating business through Business Process Outsourcing (BPO) services. UnitedHealth Group serves approximately 70 million individuals throughout the United States. In 2015, the company reported an operating income of $11 billion.