The biggest healthcare companies in the USA in 2026 include insurers, distributors, hospital operators, and medical supply firms. UnitedHealth Group leads the list by market value, while CVS Health, McKesson, and Elevance Health round out the top tier. Below, we rank the 10 largest U.S. healthcare companies by market cap and compare them with the world’s biggest pharmaceutical companies. 

This ranking uses live market-value data pulled from CompaniesMarketCap, filtered to U.S.-listed companies only. Revenue and net income figures reflect trailing-twelve-month (TTM) results as of July 2026.

These 10 companies in healthcare industry rankings represent only the publicly traded slice of a much larger market. Still, they’re the names investors and job seekers ask about most.

Below is the full list, along with what each company actually does. We’ll also show how this U.S. ranking compares against the world’s biggest healthcare companies and how it lines up with broader healthcare industry trends shaping the sector this year.

What Are the Best Healthcare Companies in the USA in 2026?

Ranked by market value, the 10 biggest healthcare companies in the USA are:

• UnitedHealth Group (UNH)
• CVS Health (CVS)
• McKesson (MCK)
• Elevance Health (ELV)
• HCA Healthcare (HCA)
• The Cigna Group (CI)
• Medline (MDLN)
• Cencora (COR)
• Cardinal Health (CAH)
• Centene (CNC)

The 10 Biggest Healthcare Companies in the USA (Full Rankings)

Here is the complete list. It covers the largest publicly traded healthcare companies headquartered or listed in the United States, sorted by market value:

Note: Market value figures update daily and will shift slightly after this blog’s publish date.

1. UnitedHealth Group (UNH)

UnitedHealth Group is the best healthcare company in the USA. It provides health insurance through employer plans, Medicare, and Medicaid. Its Optum division offers pharmacy services, healthcare technology, data analytics, and medical care. 

UnitedHealth Group faced a difficult 2025. The company appointed a new CEO and paused its full-year earnings forecast because of rising medical costs. Despite these challenges, it remains the most valuable healthcare company in the U.S. heading into 2026. 

• Revenue (TTM): $449.71 billion
• Net income (TTM): $14.55 billion
• Market cap: $362.77 billion

2. CVS Health (CVS)

CVS Health combines three main businesses into one company. It operates thousands of retail pharmacies across the U.S. It also owns Aetna, which provides health insurance to millions of people, and CVS Caremark, which manages prescription drug benefits for employers and health plans. 

In 2025, CVS expanded its same-day prescription delivery service. This reflected the growing demand for faster and more convenient pharmacy services. 

• Revenue (TTM): $407.90 billion
• Net income (TTM): $6.56 billion
• Market cap: $122.39 billion

3. McKesson (MCK)

McKesson delivers medicines and medical supplies to pharmacies, hospitals, and clinics across the U.S. While it rarely makes the news, it helps fill millions of prescriptions every year. The company also has a growing cancer care and biopharma business that now brings in a large share of its profits. 

• Revenue (TTM): $397.95 billion
• Net income (TTM): $5.59 billion
• Market cap: $93.23 billion

4. Elevance Health (ELV)

Elevance Health changed its name from Anthem in 2022 to reflect its broader healthcare focus. The company offers Blue Cross Blue Shield health plans in more than 12 states. It also owns Carelon, which provides healthcare services and data support for its insurance business. 

• Revenue (TTM): $200.41 billion
• Net income (TTM): $7.63 billion
• Market cap: $90.23 billion

5. HCA Healthcare (HCA)

HCA Healthcare operates hospitals and outpatient centers across the U.S. and U.K. Its facilities regularly appear on rankings of the top hospitals in the US and the best hospitals in the USA.

HCA has invested in AI tools that help nurses with documentation. This reduces paperwork, giving nurses more time to care for patients and improve the overall patient experience. 

• Revenue (TTM): $76.38 billion
• Net income (TTM): $12.07 billion
• Market cap: $82.55 billion

6. The Cigna Group (CI)  

Cigna provides health insurance through its Evernorth pharmacy and care services division. It serves employers, government programs, and individuals across the U.S. In 2026, Evernorth expanded access to mental health services to help improve behavioral healthcare. 

Evernorth now accounts for the larger share of Cigna’s total revenue. That shift shows how far the company has moved beyond traditional insurance.

• Revenue (TTM): $277.84 billion
• Net income (TTM): $9.80 billion
• Market cap: $76.57 billion

7. Medline (MDLN)  

Medline is the newest company on this list. In December 2025, the medical supply company raised over $6 billion in the largest U.S. IPO of 2025 after it started trading on the Nasdaq. 

In June 2026, a fire destroyed a major Medline distribution center in Tracy, California. It showed how supply chain problems can affect even the largest healthcare companies. 

• Revenue (TTM): $28.43 billion
• Net income (TTM): $1.24 billion
• Market cap: $59.88 billion

8. Cencora (COR)

Cencora supplies medicines to pharmacies, healthcare providers, and animal health customers around the world. Like McKesson, it earns small profits on each sale but makes up for it by selling in very large volumes. This is common for healthcare distribution companies. 

• Revenue (TTM): $325.77 billion
• Net income (TTM): $2.34 billion
• Market cap: $53.51 billion

9. Cardinal Health (CAH)

Cardinal Health is one of the three largest drug distributors in the U.S., along with McKesson and Cencora. It also makes medical and surgical products under its own brand. The company uses data analytics tools to help hospitals monitor supply usage in real time. 

• Revenue (TTM): $250.73 billion
• Net income (TTM): $2.34 billion
• Market cap: $48.17 billion

10. Centene (CNC)

Centene provides Medicaid, Medicare, and Marketplace health plans for low-income and underinsured Americans. The company reported a loss after rising healthcare costs forced it to withdraw its financial guidance. 

This shows how quickly investor confidence can change, even for a major health insurance company. A company’s market value does not always match its profits. 

• Revenue (TTM): $198.10 billion
• Net income (TTM): -$6.44 billion (net loss)
• Market cap: $30.77 billion

10 Biggest Healthcare Companies in the World

Looking at the global healthcare market, the ranking changes. Pharmaceutical companies lead the list of the world’s largest healthcare companies by market value. Based on CompaniesMarketCap data, here are the top 10 pharmaceutical companies. 

Eli Lilly is the world’s largest healthcare company, mainly due to the success of its weight-loss and diabetes drugs, Mounjaro and Zepbound. Johnson & Johnson ranks second with strong businesses in medicines, medical devices, and consumer health. AbbVie is third, supported by its leading immunology drugs after the success of Humira. 

Six of the top 10 healthcare companies in the world are based in the United States.

Switzerland, the UK, and Denmark make up the remaining companies on the list. Pharmaceutical companies invest billions in research and development. Creating a new medicine can take more than 10 years and cost billions of dollars, which is why large companies often attract more investor attention. 

UnitedHealth Group, the largest U.S. healthcare company, is not included in this global ranking. Companies like Roche, Novartis, AstraZeneca, and Novo Nordisk have higher market values. This list only covers pharmaceutical companies, not health insurers or healthcare distributors, which is why the rankings are different. 

Key Takeaways

• UnitedHealth Group is the biggest healthcare company in the USA, valued at $362.77 billion.
• Eli Lilly is the biggest healthcare company in the world, valued at nearly $962 billion.
• Three of the top 10 U.S. healthcare companies are drug distributors: McKesson, Cencora, and Cardinal Health.
• Medline became the newest public healthcare company after the largest U.S. IPO of 2025.
• Centene posted a net loss over the past year despite nearly $200 billion in revenue.
• Market value rankings and ‘best places to work’ rankings measure entirely different things.

How This Ranking Compares to the Best Healthcare Companies to Work For

Market value shows a company’s financial size, not how good it is as a workplace. Fortune’s 2026 list of the 100 Best Companies to Work It included 17 healthcare companies based only on employee feedback. AbbVie and Scripps Health made that list, but they are not among the largest healthcare companies by market value. 

In simple terms, the biggest healthcare companies are not always the best companies to work for. The same is true for remote healthcare jobs. Companies like Teladoc Health and Included Health focus on remote care teams, so they offer more flexibility even though their market value is lower than industry giants. 

Employee benefits also depend on the type of company. When people search for companies with the best healthcare benefits, they usually mean employee benefits, not healthcare products. Large employers like UnitedHealth Group and CVS Health often provide strong benefits because they compete with major companies in other industries for skilled workers. 

Types of Healthcare Companies: Insurers, Distributors, and Providers

Not every company in the healthcare industry does the same job. This ranking includes several distinct types of healthcare providers and healthcare services companies:

1. Health insurers (UnitedHealth, Elevance, Cigna, Centene) collect premiums and pay claims.
2. Drug and supply distributors (McKesson, Cencora, Cardinal Health) move products from manufacturers to pharmacies and hospitals.
3. Hospital operators and health systems (HCA Healthcare) run the physical facilities where care actually happens.
4. Medical-supply manufacturers (Medline) make and ship the products hospitals use every day.
5. Pharmaceutical companies (Eli Lilly, Johnson & Johnson, and AbbVie) research, develop, and sell medicines and dominate the world ranking above.

Clinical research organizations are a smaller but fast-growing slice of the healthcare industry. Our list of the Top CRO companies covers that segment in more depth. It fills out the picture of major healthcare companies beyond this top 10.

Not every healthcare company is a large national brand. Many mid-sized regional insurers and hospital systems serve local communities but do not appear on top-10 national rankings.

It is also important to understand that the best long-term healthcare insurance companies are different from the major health insurers listed above.

Long-term care insurance helps cover extended care needs, such as nursing homes or assisted living. Companies like Genworth and Mutual of Omaha specialize in this area, while the insurers above mainly focus on regular health coverage. 

Who Leads America’s Biggest Healthcare Companies?

Behind every company on this list sits a leadership team. Their decisions affect millions of patients. Our profile of Ruben Rathnasingham covers one executive shaping healthcare strategy today. Our roundup of the 10 prominent leaders in healthcare 2026 profiles several more.

Staffing these executive teams has become its own specialty. Recruiting for a role like a healthcare executive assistant now takes the same rigor as hiring healthcare professionals for clinical roles, since these positions increasingly shape strategy rather than just schedules.

Healthcare Company Searches You Might Be Looking For

A few related searches point to different topics entirely. Here’s how each one connects to healthcare companies, even though none of them fit this specific ranking.

• Best healthcare consulting companies: this search usually means firms like Deloitte, McKinsey, and Accenture, which advise healthcare organizations rather than operate hospitals or insurance plans themselves.
• Custom healthcare software development companies: This covers health-tech vendors such as Epic Systems and Oracle Health, formerly Cerner, which build the electronic health record systems hospitals rely on.
• Best fintech banks and best business banking for healthcare companies: These searches point to specialized banking partners that finance medical practices and health systems, rather than deliver care themselves.
• Which digital healthcare company has the best hair loss products: Hims & Hers Health is the digital healthcare company most associated with this search. It sells telehealth-prescribed hair loss treatments alongside other direct-to-consumer products, and it sits well below the companies on this top-10 list by market value.
• Best specialist workflows in healthcare: This usually refers to clinical workflow software from companies like Epic Systems and athenahealth, which help specialists manage referrals, scheduling, and documentation.

Are These the Best Healthcare Stocks to Watch?

Market value does not mean a company is a good investment. It only shows how the market values a company’s shares at a given time. This article provides information, not financial advice. Readers should talk to a licensed financial advisor before investing in healthcare stocks. 

Company size is still important. UnitedHealth, CVS Health, and McKesson rank among the largest healthcare companies by market value. However, Centene’s recent losses show that even big healthcare companies can face financial challenges. 

High revenue does not always mean high profits. A company’s size alone should not be the only reason to invest. Healthcare insurers, distributors, and hospital companies each have different strengths. The best choice depends on whether someone is looking at investments, healthcare services, or career opportunities. 

Conclusion

Eli Lilly’s $962 billion market value is much higher than UnitedHealth’s $362.77 billion, creating a bigger gap in the global ranking. The U.S. list also shows how healthcare power is mainly controlled by insurers, drug companies, and distributors. 

Tejas Jadhav

FAQs

1. What is the biggest healthcare company in the USA?

UnitedHealth Group is the largest healthcare company in the USA by market value. It has a market value of $362.77 billion and earns $449.71 billion in yearly revenue. 

2. What is the biggest healthcare company in the world?

Eli Lilly is the world’s largest healthcare company by market value, worth nearly $962 billion. It became the first pharmaceutical company to reach a $1 trillion valuation in 2025, although its value changes daily. 

3. Are healthcare stocks a good investment?

The right choice depends on your goals and how much risk you are comfortable taking. This blog is only for information and does not provide investment advice. Always consult a licensed financial advisor before investing in healthcare stocks.