Aetna was acquired by CVS Health Corp. in 2018. Aetna has an excellent reputation and is one of the largest … Only companies incorporated and operating in the U.S. are eligible for inclusion in the Fortune 500. It has not been previewed, commissioned or otherwise endorsed by any of our network partners. UnitedHealth Group: $226.2 billion What are the biggest health insurance companies? Interested in linking to or reprinting our content? Including corporate health insurance policies and management of those plans, Cigna also offers dental, behavioral health, vision, supplemental health and Medicare/Medicaid retirement benefits. 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Also known as “covered lives,” the amount of membership means the number of individuals who have enrolled in a health insurance plan with that provider. The biggest health insurance companies in the United States include well-known insurance providers. Copyright © 2020 Becker's Healthcare. Advertiser Disclosure: Some of the offers that appear on this website are from companies which ValuePenguin receives compensation. Aetna: Best for Employer-Based Plans. Founded in 1853, Aetna is the third-largest provider of health insurance and services. Interestingly, although Cigna is the fourth largest health care company by membership, it was only the sixth largest by revenue. For more information please see our Advertiser Disclosure. All of these providers offer basic health insurance products to individuals and companies, along with other services that include Medicaid and Medicare policies, long term care insurance, dental insurance and vision benefits. UnitedHealthcare is headquartered in Minnetonka, Minnesota. This means that typically, when searching for Anthem policies on your state marketplace exchange, you will find that its products will be titled BCBS followed by the name of your state, but the insurer you will be buying from will be Anthem. {"align":"left","buttonColor":"primary","buttonIcon":"lock","buttonText":"Apply … Carestream Dental. Along with having the most members, UnitedHealthcare also has a care network of over 1.3 million physicians and health care professionals with more than 6,000 hospitals. Companies are ranked in order of their total revenues in the last fiscal year. Humana comes in as the fifth-largest health insurance company by membership. However, most of its membership comes from providing health insurance to employers and its employees in the private market. The provider offers a variety of products from individual health insurance to full employer benefits plans for some of the biggest corporations. Some of the largest healthcare companies in the world include UnitedHealth Group Inc. (UNH), Pfizer Inc. (PFE), and Abbvie Inc. (ABBV). Laboratory Corp. of America: $11.3 billion, 293. Revenue is created in a health insurance company by the premiums it charges, the number of policies it writes, services it sells and the number of businesses it operates in. UnitedHealthcare Group. The company currently operates in California, Colorado, Connecticut, Georgia, Indiana, Kentucky, Maine, Missouri, Nevada, New Hampshire, New York, Ohio, Virginia and Wisconsin. 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