UnitedHealth Group Incorporated is an American multinational for-profit company specializing in health insurance and health care services based in Eden Prairie, Minnesota. Selling insurance products under UnitedHealthcare, and health care services under the Optum brand, it is the world's seventh-largest company by revenue and the largest health care company by revenue. The company is ranked eighth on the 2024 Fortune Global 500. UnitedHealth Group has a market capitalization of more than $460 billion as of 2024. The company is the largest health insurer in the United States, insuring over 50 million people. Optum, carrying the same brand and name as Optum, functions as UnitedHealth Group's Business Process Outsourcing and Shared Services subsidiary, catering to the group's customer service management with sites in countries like the Philippines. UnitedHealth Group has faced investigations, lawsuits, and fines, including SEC enforcement for stock option backdating, Medicare over-billing, unfair claims practices, mental health treatment denials, and anticompetitive behavior. Wikipedia