Top 10 Healthcare Companies in USA 2026

The United States spent $5.3 trillion on health care in 2024. That’s $15,474 per American and 18% of GDP. These figures come from the Centers for Medicare & Medicaid Services (CMS).

Much of that money flows through a few large healthcare companies. They provide insurance coverage, run pharmacy benefit management, operate pharmacy and clinic chains, and move drugs from manufacturers to pharmacies. Many of them have broken down the old wall between paying for care and providing it.

We built this list from the highest-revenue companies in the 2026 Fortune 500, released in June 2026, which uses each company’s latest fiscal year (fiscal 2025 in most cases). Where a company has already posted newer numbers, such as Q3 2026 results from UnitedHealth Group, Elevance Health and Johnson & Johnson, we’ve added them to its profile. Walgreens isn’t included because Sycamore Partners took it private in August 2025.

Also Read: Top 10 Pharmaceutical Companies in USA 2026

Below, this guide covers the top 10 healthcare companies in USA for 2026, what each one does best and who it serves.

Why the Largest Healthcare Companies in USA Matter in 2026

These companies sit between patients, doctors, employers and the government, so their decisions shape what care costs and how people get it.

Spending Keeps Outpacing the Economy

According to CMS, national health spending is projected to grow 5.4% a year on average from 2025 through 2034, faster than GDP at 4.1% a year. Health care’s share of the economy would climb from 18.0% to 20.6%. These healthcare giants will sit at the center of that growth.

Government Programs Drive the Big Insurers

In 2024, Medicare spending rose 7.8% to $1,118.0 billion, and Medicaid came in at $931.7 billion. Medicare Advantage and Medicaid plans are a core business for UnitedHealth Group, Elevance Health, Centene and Humana, so changes in federal payment rates hit their profits quickly.

Drug Spending Feeds Distributors and PBMs

Prescription drug spending reached $467.0 billion in 2024, up 7.9%, and CMS expects drugs to be the fastest-growing spending category through 2034. Drugmakers sell through wholesalers like McKesson, Cencora and Cardinal Health, which supply pharmacies. Pharmacy benefit managers (PBMs) such as CVS Caremark, Express Scripts and Optum Rx manage how much plans pay for medications.

Efficiency Matters at Every Level

Cost pressure doesn’t just affect the giants. Hospitals and doctors’ offices feel it too, and many use outside firms for medical billing services to process claims and receivables faster. The big companies on this list chase the same goal at national scale with data, automation and AI.

Top 10 Healthcare Companies in USA at a Glance

Top 10 Healthcare Companies in USA (2026)

Here are the largest healthcare companies in USA, ranked by revenue in the 2026 Fortune 500.

1. UnitedHealth Group

UnitedHealth Group is the largest healthcare company in the USA and No. 3 on the 2026 Fortune 500. The Minnesota company traces its roots to 1974 and employed about 390,000 people in 2025. It generated $447.6 billion in revenue in 2025, an increase of 12%. It operates two major platforms. UnitedHealthcare is its insurance division, while Optum covers care delivery, pharmacy benefit management through Optum Rx, and data and analytics.

Q3 2026 revenue came in at $112.7 billion, down from $113.2 billion a year earlier, yet the company raised its 2026 guidance to adjusted earnings of at least $20.50 per share. As of September 30, 2026, UnitedHealthcare served 48.3 million people. Under Chairman and CEO Stephen Hemsley, the group plans to invest $3 billion in AI across 2026 and 2027. In July 2025, it confirmed a federal investigation into its Medicare practices and said it is cooperating.

Key Healthcare Solutions
✔ UnitedHealthcare employer, Medicare and Medicaid plans
✔ Optum Rx pharmacy benefit management
✔ Optum care delivery and health services
✔ Healthcare data and analytics

Best for: Employers and government programs that want national-scale coverage, care and pharmacy services under one group.

2. CVS Health

CVS Health has its roots in 1963, when the first CVS store opened in Lowell, Massachusetts. Now based in Woonsocket, Rhode Island, it ranks No. 6 on the 2026 Fortune 500 with $402.1 billion in revenue. It runs CVS Pharmacy stores and MinuteClinic, manages pharmacy benefits through Caremark, which it acquired in 2007, and provides primary care through Oak Street Health. In 2018 it bought Aetna in a $70 billion deal.

Things are looking up under Chairman and CEO David Joyner. Q2 2026 revenue rose 7.3% to $106.1 billion. CVS raised its 2026 adjusted earnings guidance to $7.90-$8.10 per share and expects total revenue of at least $414.0 billion for the year. The company credits much of the improvement to a margin recovery plan in its Health Care Benefits segment, which includes Aetna.

Key Healthcare Solutions
✔ CVS Pharmacy retail and specialty pharmacy
✔ CVS Caremark pharmacy benefit management
✔ Aetna health insurance plans
✔ MinuteClinic and Oak Street Health care

Best for: Consumers and employers who want insurance, pharmacy and everyday care from one connected company.

3. McKesson

McKesson traces its history to New York in the 1830s. In 2019 it moved its headquarters from San Francisco to Irving, Texas. It ranks No. 8 on the 2026 Fortune 500 with $359.1 billion in revenue for the fiscal year ended March 2025. Alongside drug distribution, McKesson runs medical-surgical, specialty and pharmacy network businesses, including Health Mart.

In fiscal 2026, which ended March 31, 2026, revenue grew 12% to $403.4 billion. CEO Brian Tyler guided fiscal 2027 adjusted earnings to $43.80-$44.60 per share. McKesson also plans to separate its Medical-Surgical Solutions business, and Apollo Global has agreed to acquire a minority stake of about 13% in it, subject to approvals. McKesson has warned that the separation may not happen on the current terms or timeline, or at all.

Key Healthcare Solutions
✔ U.S. pharmaceutical distribution
✔ Oncology and specialty practice support
✔ Medical-surgical supplies
✔ Health Mart independent pharmacy network

Best for: Pharmacies, health systems and physician practices that need reliable drug and supply distribution at scale.

4. Cencora

Cencora was known as AmerisourceBergen until it changed its name in August 2023. That company was formed in 2001, when AmeriSource Health merged with Bergen Brunswig. Cencora had about 51,000 employees in 2025 and is based in Conshohocken, Pennsylvania. It ranks No. 10 on the 2026 Fortune 500 with $321.3 billion in revenue for the fiscal year ended September 2025.

It keeps expanding in specialty care. In January 2025 it bought 85% of Retina Consultants of America for about $4.4 billion, and it acquired OneOncology in February 2026. Revenue in its fiscal third quarter of 2026 rose 5.1% to $84.8 billion. President and CEO Robert Mauch is guiding to 4% to 6% revenue growth for the fiscal year. Its World Courier unit provides specialty logistics for drugmakers.

Key Healthcare Solutions
✔ Pharmaceutical wholesale distribution
✔ Specialty physician services in oncology and retina
✔ World Courier specialty logistics
✔ Services for biopharma manufacturers

Best for: Drugmakers and specialty practices that need distribution plus commercialization and logistics support.

5. The Cigna Group

The Cigna Group ranks No. 14 on the 2026 Fortune 500 with $274.9 billion in revenue. It is headquartered in Bloomfield, Connecticut, and acquired Express Scripts in December 2018. Evernorth Health Services, home to Express Scripts, makes up the bulk of its revenue. Its other division, Cigna Healthcare, provides medical plans to employers and individuals.

Second-quarter 2026 revenue was up 7% to $71.7 billion, with Evernorth contributing $61.5 billion in adjusted revenue. Cigna had 182.8 million customer relationships as of June 30, 2026, including 118.2 million pharmacy customers and 18.4 million medical customers. Brian Evanko became CEO on July 1, 2026, taking over from David Cordani, who now serves as executive chair. Cigna is guiding 2026 adjusted earnings to at least $30.45 per share.

Key Healthcare Solutions
✔ Express Scripts pharmacy benefit management
✔ Specialty pharmacy and care services
✔ Employer medical, dental and behavioral plans
✔ Evernorth health services for health plans

Best for: Employers and health plans looking for a large pharmacy benefit manager with integrated specialty care.

6. Cardinal Health

Cardinal Health was started by Robert D. Walter in 1971 under the name Cardinal Foods and is based in Dublin, Ohio. It takes the No. 15 spot on the 2026 Fortune 500 with $222.6 billion in revenue for the fiscal year ended June 2025. Cardinal distributes medications and medical products to pharmacies, hospitals and clinics. It also runs businesses that deliver supplies to patients at home and handle logistics.

Fiscal 2026 was a strong year. Revenue for the year ended June 30, 2026, was $254.2 billion, up 14%. Most of it came from the Pharmaceutical and Specialty Solutions segment at $234.8 billion. CEO Jason Hollar has been expanding specialty care, including the Solaris Health acquisition completed in November 2025. Cardinal is projecting non-GAAP earnings of $12.40-$12.60 per share for fiscal 2027.

Key Healthcare Solutions
✔ Pharmaceutical and specialty distribution
✔ Medical and surgical products
✔ At-Home Solutions for patients
✔ OptiFreight Logistics

Best for: Hospitals, retail pharmacies and specialty practices that want one supplier for drugs and medical products.

7. Elevance Health

Anthem became Elevance Health in June 2022. The company is based in Indianapolis, where its roots go back to 1946, and ranks No. 18 on the 2026 Fortune 500 with $199.1 billion in revenue. Elevance holds Blue Cross Blue Shield licenses in 14 states and offers health plans under the Anthem brand. It also provides pharmacy and health services through Carelon, which launched with the 2022 rebrand.

In Q3 2026, Elevance posted operating revenue of $50.4 billion, 0.7% higher than a year earlier. Medical membership was about 44.9 million as of September 30, 2026, down 1.1% from the previous year. Despite that, CEO Gail Boudreaux raised the 2026 outlook to adjusted earnings of at least $29.00 per share. CarelonRx and Carelon Services give it room to grow beyond insurance premiums.

Key Healthcare Solutions
✔ Anthem Blue Cross Blue Shield health plans
✔ Medicare and Medicaid plans
✔ CarelonRx pharmacy services
✔ Carelon Services care management

Best for: Employers and individuals in Anthem’s Blue Cross Blue Shield states who want broad local networks.

8. Centene

Centene was founded in 1984 by Elizabeth “Betty” Brinn, a hospital bookkeeper. It went by the name Family Hospital Physician Associates until 1997, when it became Centene and set up its corporate office in St. Louis, Missouri. Centene describes itself as the largest Medicaid managed care organization in the country. It ranks No. 19 on the 2026 Fortune 500 with $194.8 billion in revenue.

It bought Health Net in 2016 and combined with WellCare in 2020. It sells Health Insurance Marketplace plans through its Ambetter brand, which started in 2014. Centene brought in $50.6 billion in Q3 2026, up from $49.7 billion a year earlier. As of September 30, 2026, it had about 25.7 million at-risk members, including 11.9 million in Medicaid. CEO Sarah London now expects 2026 revenue of $196.5 billion to $200.5 billion.

Key Healthcare Solutions
✔ Medicaid managed care plans
✔ Ambetter marketplace health insurance
✔ Medicare and prescription drug plans

Best for: State Medicaid programs and individuals buying coverage on the Health Insurance Marketplace.

9. Humana

Humana was founded in 1961 and is based in Louisville, Kentucky. It takes the No. 33 spot on the 2026 Fortune 500 with $129.7 billion in revenue. Humana runs two businesses: Insurance, built around Medicare Advantage plans, and CenterWell, which offers seniors primary care, home health and pharmacy services.

Humana is on track for strong growth in 2026. Q2 revenue was $40.9 billion, about 26% more than the $32.4 billion it reported a year earlier. The company expects individual Medicare Advantage membership to rise about 25% this year. CenterWell Senior Primary Care gained 130,900 patients in the first half, a 27% increase. President and CEO Jim Rechtin affirmed adjusted earnings of at least $9.00 per share, which the company expects to be lower than last year because of a Star Ratings headwind for 2026.

Key Healthcare Solutions
✔ Medicare Advantage plans
✔ CenterWell Senior Primary Care
✔ CenterWell home health
✔ CenterWell pharmacy services

Best for: Seniors who want Medicare Advantage coverage linked to primary care and home health.

10. Johnson & Johnson

Johnson & Johnson was founded in 1886 and is still based in New Brunswick, New Jersey. It had 138,200 employees in 2025 and ranks No. 44 on the 2026 Fortune 500 with $94.2 billion in revenue. J&J separated its consumer health business, Kenvue, in 2023. It now has two segments: Innovative Medicine and MedTech.

Third-quarter 2026 sales rose 5.9% to $25.4 billion. Innovative Medicine sales grew 7.7% to $16.8 billion, as Tremfya, Darzalex and Carvykti more than made up for lower Stelara sales. MedTech sales grew 2.5% to $8.6 billion. Chairman and CEO Joaquin Duato raised 2026 sales guidance to a midpoint of $101.2 billion. J&J bought Intra-Cellular Therapies in April 2025 for $14.6 billion, adding the drug Caplyta.

Key Healthcare Solutions
✔ Oncology and immunology medicines
✔ Neuroscience treatments
✔ Surgical and orthopedic devices
✔ Cardiovascular and vision technologies

Best for: Hospitals, surgeons and patients who need innovative medicines and medical devices from one company.

How to Choose the Right Healthcare Partner in the USA

There are many healthcare companies in USA to choose from, and the right one depends on who you are. You might be an employer picking health plans for staff, a person buying your own coverage, a provider choosing a supplier or an investor. These tips can help.

Match the Company to Your Need

Insurers like UnitedHealthcare, Aetna, Elevance and Humana sell coverage. Distributors like McKesson, Cencora and Cardinal Health serve pharmacies and hospitals. Johnson & Johnson makes medicines and devices. Start with what you actually need.

Check Networks and Quality Ratings

When choosing a health plan, check that your doctors and hospitals accept it. If you’re choosing a Medicare Advantage plan, look up its CMS Star Rating on Medicare.gov. Star Ratings give you a quick read on plan quality.

Ask How Pharmacy Benefits Work

If you’re choosing a PBM for your business, ask how it prices drugs, how it passes along rebates and how it manages specialty drugs. Clear answers now prevent surprises at renewal.

Review the Latest Filings

All 10 companies are publicly traded and file 10-K and 10-Q reports with the SEC. These filings show revenue, membership trends, guidance and legal risks. If you’re choosing one of these companies for your business, take time to read them.

Watch Regulation and Legal Exposure

Changes to Medicare payments, state insurance rules and federal investigations can alter a company’s outlook quickly. Read the risk sections of the latest filings to see what problems a company expects it could face.

Frequently Asked Questions About Healthcare Companies in USA

Which is the largest healthcare company in the USA?

UnitedHealth Group is the largest, with $447.6 billion in revenue in 2025. It ranks No. 3 on the 2026 Fortune 500, behind only Amazon and Walmart.

Why aren’t Pfizer, Merck or Eli Lilly on this list?

This list is ranked by revenue. In the 2026 Fortune 500, Eli Lilly reported $65.2 billion, Merck $65.0 billion and Pfizer $62.6 billion. That puts all three below Johnson & Johnson and hospital operator HCA Healthcare ($75.6 billion). Rank by market value instead and you’d get a different list.

Why is Walgreens missing?

Walgreens Boots Alliance became a private company in August 2025 when Sycamore Partners acquired it. Because it no longer publishes annual results, it isn’t on the 2026 Fortune 500 or on this list.

Which healthcare company is the best?

There’s no single best healthcare company for everyone. Decide what kind of service you need first: a Medicare plan, a pharmacy benefit manager or a supplier. Then compare networks, prices, service and recent results.

Conclusion

The top 10 healthcare companies in USA generate massive revenue: together, more than $2.6 trillion in the 2026 Fortune 500. Insurers, pharmacy benefit managers and drug distributors lead the list because they handle two of the biggest streams of America’s $5.3 trillion in health spending: insurance and prescription drugs.

Rankings change every year. Medicare payment rates, drug prices, regulation and deals like McKesson’s planned separation and Cardinal Health’s specialty expansion will keep reshaping the order. Check the latest results before you choose any of these companies.

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