Texas. Office of the State Auditor; Alwin, Lawrence F / Wikimedia Commons (Public domain)
The US health insurance market totals $1.4 trillion, dominated by managed care organizations. These providers cover hundreds of millions of Americans through employer, Medicare, Medicaid, and ACA marketplace plans.
Curated by the Top10Grid editorial team. Rankings driven by community votes and updated daily.
$400B revenue, 50M+ members. The largest US health insurer, integrating Optum data analytics and pharmacy services. Covers commercial, Medicare Advantage, and Medicaid populations.
$372B revenue. CVS acquired Aetna in 2018 for $69B, creating a pharmacy-insurance powerhouse. Aetna covers 38M+ members across commercial, Medicare, and Medicaid products.
$195B revenue. Cigna integrated Express Scripts pharmacy benefit management into Evernorth Health Services. Covers 19M+ medical members across commercial and government plans.
$171B revenue. Blue Cross Blue Shield licensee in 14 states. Rebranded as Elevance Health in 2022. Serves 48M+ members through commercial, Medicare, and Medicaid plans.
$116B revenue. The leading Medicare Advantage insurer with 20%+ market share and 5.8M MA members. Based in Louisville, KY, Humana focuses on seniors and government-sponsored plans.
$153B revenue. The largest Medicaid managed care organization in the US, serving 28M+ low-income beneficiaries. Also active in ACA marketplace and Medicare plans.
$38B revenue. Focused on Medicaid and ACA marketplace coverage for low-income Americans. Serves 5.6M members across 20 states. Known for low-cost, government-sponsored plan expertise.
Covers 115M Americans — one in three. A federated network of 33 independent plans operating under the BCBS brand. Together the largest US health insurer by membership.
$100B revenue, 12.7M members. A not-for-profit integrated health system operating both insurance plans and hospitals. Active in 8 states plus DC with a unique care delivery model.
$8B revenue. Tech-first ACA marketplace insurer co-founded by Josh Kushner in 2012. Uses technology to simplify the member experience. Serves 1.6M+ members across 22 states.
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$400B revenue, 50M+ members. The largest US health insurer, integrating Optum data analytics and pharmacy services. Covers commercial, Medicare Advantage, and Medicaid populations.
$372B revenue. CVS acquired Aetna in 2018 for $69B, creating a pharmacy-insurance powerhouse. Aetna covers 38M+ members across commercial, Medicare, and Medicaid products.
$195B revenue. Cigna integrated Express Scripts pharmacy benefit management into Evernorth Health Services. Covers 19M+ medical members across commercial and government plans.
$171B revenue. Blue Cross Blue Shield licensee in 14 states. Rebranded as Elevance Health in 2022. Serves 48M+ members through commercial, Medicare, and Medicaid plans.
$116B revenue. The leading Medicare Advantage insurer with 20%+ market share and 5.8M MA members. Based in Louisville, KY, Humana focuses on seniors and government-sponsored plans.
$153B revenue. The largest Medicaid managed care organization in the US, serving 28M+ low-income beneficiaries. Also active in ACA marketplace and Medicare plans.
$38B revenue. Focused on Medicaid and ACA marketplace coverage for low-income Americans. Serves 5.6M members across 20 states. Known for low-cost, government-sponsored plan expertise.
Covers 115M Americans — one in three. A federated network of 33 independent plans operating under the BCBS brand. Together the largest US health insurer by membership.
$100B revenue, 12.7M members. A not-for-profit integrated health system operating both insurance plans and hospitals. Active in 8 states plus DC with a unique care delivery model.
$8B revenue. Tech-first ACA marketplace insurer co-founded by Josh Kushner in 2012. Uses technology to simplify the member experience. Serves 1.6M+ members across 22 states.
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