UnitedHealth Group Inc. is an American for-profit managed health care company based in Minnetonka, Minnesota. As of 2018, it is ranked #5 on the Fortune 500 rankings of the largest United States corporations by total revenue. UnitedHealth Group offers health care products and insurance services. UnitedHealth Group is the largest healthcare company in the world by revenue with $201 billion in 2017. UnitedHealth Group subsidiary companies together serves approximately 115 million individuals in 2016.