10 Largest Health Insurance Companies by Membership

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8. Kaiser Permanente

Next on the list of the 10 largest health insurance companies by membership is Kaiser Permanente, a California-based managed care consortium, which was founded in 1945 by industrialist Henry J. Kaiser and physician Sidney Garfield. As of the end of 2016, Kaiser had a total of 10.7 million members. The company added 429,000 members in 2016, an increase of 4.2% compared to 2015. Earlier this year, Kaiser Permanente completed its $1.8 billion acquisition of non-profit healthcare organization Group Health Cooperative.

Ken Wolter/Shutterstock.com

Ken Wolter/Shutterstock.com

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