25 Largest Companies in the United States in 2026 by Revenue, Market Cap, and More

The United States is home to some of the most powerful companies in the world, businesses that shape industries, employ millions, and influence economies globally. The 2026 Fortune 500 shows how big they have grown. Together, these largest companies in the United States earned $21 trillion in revenue and $2.1 trillion in profit last year. They also employ 30.5 million people worldwide.

But being “large” isn’t just about revenue. Some lead through market value, others through the employee count, brand value, or their dominance in key industries. In this blog, we take a closer look at the largest U.S. companies, exploring how they achieve their scale. You’ll know what sets them apart and why they matter not just for the U.S. but for the world.

How are the Largest Companies in the United States Measured?

The size of a company can be measured in several ways. Each metric shows a different part of business scale. The largest U.S. companies may change depending on the metric used.

• Revenue: The total money a company earns from its business activities over a set period. In this article, we’re considering trailing-12-month or TTM revenue.
• Market Capitalization: The total market value of a public company’s shares at a given time.
• Employees: The total number of people a company reports as part of its workforce.
• Brand Value: The estimated financial value of a company’s brand name and reputation.
• Private-company Revenue: The estimated sales of large companies that are not publicly traded.

Each metric tells us something different about company size. Revenue highlights financial scale and shows how much business a company generates. Market capitalization shows market value and reflects how investors value a public company. Employee count shows workforce scale and gives a sense of a company’s operating reach.

Brand value highlights brand strength and shows the estimated worth linked to a company’s name. Private company revenue shows sales scale for firms that do not have public stock prices.

These measures should not be treated equally. A company can lead by revenue but rank lower by market cap or brand value. Using several metrics gives a broader view of the largest companies in the United States.

Quick Comparison of the Largest U.S. Companies (2026)

Before coming to the full list, here are the leading names from each category:

Largest Companies in the United States by Revenue

Revenue is one of the clearest ways to measure business scale. For this section, the figures use current TTM revenue.

Amazon currently leads U.S. public companies by TTM revenue. Walmart follows, while Apple, UnitedHealth Group, and Alphabet round out the top five.

1. Amazon

Amazon leads the U.S. public-company revenue list. Its business spans retail, cloud computing, advertising, and logistics. AWS is a major growth engine, while advertising adds another high-margin business. Amazon also operates a large fulfillment network, giving it scale across both consumer and enterprise markets.

2. Walmart

Among the largest companies in the United States, Walmart combines a huge store network with a growing digital business. It serves millions of shoppers through stores, websites, and apps. Its grocery business also drives frequent customer visits. For business leaders, Walmart shows how scale, supply chain reach, and digital tools can support retail growth.

3. Apple

Apple has built a large ecosystem across devices, software, and services. Its installed base exceeded 2.5 billion active devices in early 2026. The App Store also had more than 850 million average weekly users in 2025. These figures show the reach behind Apple’s recurring services business.

4. UnitedHealth Group

UnitedHealth combines health insurance with health services through its Optum businesses. This model gives the company several revenue streams across the health care market. Its scale also gives it access to large employer, government, and consumer markets. The mix shows how health services can support long-term growth.

5. Alphabet

Alphabet earns money from search, advertising, YouTube, cloud services, and other products. Its business also benefits from huge user reach across Google platforms. Google Cloud adds an important enterprise growth area. Alphabet shows how digital platforms can turn large audiences into several revenue streams.

Largest Companies in the United States by Market Capitalization

Market cap changes with stock prices, so this list can move from day to day. Currently, NVIDIA is at the top of the U.S. market-cap list.

1. NVIDIA

Market Cap: $5.526 trillion
Industry: Semiconductors 

NVIDIA is one of the largest companies in the United States because it has become a key supplier for the fast-growing AI computing market. Its chips power data centers, cloud platforms, and advanced AI systems. The company also builds software and networking tools around its chips. This ecosystem can create strong links between hardware demand and software use.

2. Apple

Market Cap: $4.938 trillion
Industry: Consumer technology 

Apple combines a huge device base with a growing services ecosystem. Its App Store supports developers in more than 175 countries and regions. Developers have earned more than $550 billion through the platform since 2008. This reach helps Apple create new ways to monetize its customer base.

3. Alphabet

Market Cap: $4.147 trillion
Industry: Technology 

Alphabet has several large digital businesses under one group. Google Search remains central, while YouTube and Google Cloud add other growth paths. The company is also investing heavily in AI tools and infrastructure. This mix gives investors exposure to advertising, cloud computing, digital media, and emerging technology.

4. Microsoft

Market Cap: $3.781 trillion
Industry: Technology 

Microsoft has a broad enterprise business built around software, cloud, and workplace tools. Microsoft Cloud revenue reached $168.9 billion in fiscal 2025. Azure also passed $75 billion in annual revenue for the first time. These figures highlight the scale of Microsoft’s cloud and enterprise position.

5. Amazon

Market Cap: $2.655 trillion
Industry: E-commerce and cloud

Amazon has built a business with several large growth engines. AWS serves companies that need cloud computing and AI infrastructure. Advertising adds another fast-growing business alongside retail and subscriptions. This mix gives Amazon exposure to consumer spending, enterprise technology, digital ads, and cloud demand.

Largest Companies in the United States by Employees

Employee numbers offer another view of company scale. The current U.S. list is led by Walmart, followed by Amazon, Home Depot, UPS, and Concentrix.

1. Walmart (Employees: 2,100,000)

Walmart’s workforce reflects the labor needs of a global retail network. Its employees support stores, supply chains, e-commerce, delivery, and customer service. The company’s scale also gives it major buying power with suppliers. Walmart shows how physical operations can remain central to a digital retail model.

2. Amazon (Employees: 1,595,000)

Amazon’s workforce supports a business that spans warehouses, delivery, retail, cloud computing, and technology. Its large employee base is closely tied to its fulfillment network and customer reach. Amazon shows how rapid delivery and broad product choice can require major investment in operations and people.

3. Home Depot (Employees: 470,000)

Home Depot combines more than 2,300 stores with online sales and professional customer services. Its 2025 net sales reached $164.7 billion. The company also earned $14.2 billion that year. As one of the largest companies in the United States, its scale makes store productivity, supply chain control, and contractor demand key business factors.

4. United Parcel Service (Employees: 460,000)

UPS operates a large delivery network that depends heavily on its workforce. About 370,000 of its roughly 460,000 employees are based in the U.S. Nearly 80% of its U.S. employees are represented by unions. These figures show why labor costs and productivity matter so much to logistics firms.

5. Concentrix (Employees: 455,000)

Concentrix provides customer experience and technology services for companies across many industries. Its large workforce reflects the people-heavy nature of customer support and business services. For companies using outside service providers, its scale shows how global firms can combine labor, technology, and process management to serve large client networks.

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Largest Companies in the United States by Brand Value

Brand value is different from market cap. It estimates the financial value linked to a brand name and its strength. Brand Finance’s 2026 Global 500 places five U.S. technology brands among the highest-valued brands worldwide.

1. Apple – Brand Value: $607.6 billion

Apple leads the brand-value list with a strong mix of products and services. Its brand helps support premium pricing and customer loyalty. The company also has more than 2.5 billion active devices worldwide. For businesses, Apple shows how an ecosystem can turn brand strength into repeat sales and services growth.

2. Microsoft – Brand Value: $565.2 billion

Microsoft’s brand reaches consumers, businesses, and public organizations worldwide. Its 2025 revenue reached $281.7 billion. Its broad enterprise presence also supports long-term customer relationships. Microsoft shows how trusted software brands can support recurring cloud and subscription revenue.

3. Google – Brand Value: $433.1 billion

Google benefits from one of the world’s most widely used digital platforms. Search, YouTube, advertising, and cloud services connect the brand with both consumers and businesses. YouTube was also named the world’s strongest brand in 2026, with a Brand Strength Index score of 95.3 out of 100.

4. Amazon – Brand Value: $369.9 billion

Amazon’s brand covers online shopping, cloud computing, advertising, entertainment, and delivery. This broad reach gives the company many ways to engage customers. Its brand also extends beyond retail through AWS and other services. Its presence among the largest companies in the United States shows how one trusted name can support several connected revenue models.

5. NVIDIA – Brand Value: $184.3 billion

NVIDIA’s brand has grown with the rapid rise of AI computing. Its brand value more than doubled from 2025, rising 110% to $184.3 billion. The company also ranked as the world’s fifth-most valuable brand. Its rise shows how technology leadership can quickly build global brand strength.

Largest Private Companies in the United States

Public-company rankings do not cover every large U.S. business. Private firms can also generate huge sales, but their financial data is often estimated.

Forbes’ private-company list puts Cargill first, followed by Koch Industries and more:

1. Cargill

Cargill operates across food, agriculture, trading, and supply chains. Its business connects farmers, manufacturers, food companies, and global markets. That position gives it a broad role in moving commodities and food products. Cargill shows how private firms can build huge scale through complex supply networks.

2. Koch Industries

Koch Industries operates across energy, manufacturing, chemicals, and other markets. Its diversified structure spreads business activity across several industries rather than one core market. This model can reduce reliance on a single revenue source. Koch shows how private ownership can support long-term business strategies.

3. Publix Super Markets

Publix has built its scale through supermarkets, strong customer loyalty, and a large store network. Its business is closely tied to grocery demand, which can provide steady customer traffic. The company also remains privately held. Its model shows how regional strength and customer trust can support large-scale retail growth.

4. Mars

Mars operates across food, pet care, and consumer products. Its portfolio includes well-known brands that reach households across global markets. The company’s private ownership gives it more control over long-term investment decisions. Mars offers an example of how a private firm can build scale through brand diversification.

5. H-E-B Grocery Company

H-E-B has built a strong grocery business through stores, private-label products, and a focus on regional markets. Its strength in Texas gives it a clear local market position. The company remains privately held, which supports long-term control. Its model shows how regional scale can create a strong retail business.

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Which Sectors Drive the Largest Companies in the United States?

The largest U.S. companies span nearly every major part of the economy. Their size comes from different business models, markets, and sources of demand.

Technology remains a major force. As of August 2026, information technology companies made up 39.7% of the S&P 500 by index weight. Apple, Microsoft, and Alphabet generate huge value through devices, software, cloud services, advertising, and AI. Their global reach also helps them maintain large market values.

Semiconductors are another key sector. NVIDIA, Broadcom, and Micron supply chips used in AI systems, data centers, and other digital products. Rising demand for computing power has increased the importance of this sector.

Retail includes companies such as Walmart, Amazon, and Home Depot. Their scale comes from large store networks, online sales, strong supply chains, and high customer demand.

Health care also has several very large companies. UnitedHealth Group, CVS Health, and McKesson operate across insurance, pharmacy, health services, and drug distribution. Their size reflects the huge and steady demand for health care.

Financial services are led by companies such as Berkshire Hathaway and JPMorgan Chase. Their businesses cover banking, insurance, investments, and other financial services.

Other major sectors include energy, logistics, and automotive. Exxon Mobil operates across oil, gas, and refining, while UPS focuses on delivery and supply networks. Tesla combines vehicles with software and energy products.

This mix shows that company size can come from very different sources. Technology leads many market-value measures, while retail and health care have several major revenue producers.

Where are the Largest U.S. Companies Located?

The largest companies in the United States are spread across several major business centers. Texas now has the most Fortune 500 companies, with 57 headquarters. California follows with 56, while New York has 53. Texas-based Fortune 500 companies generated about $2.8 trillion in revenue, compared with about $2.7 trillion in California and $2.2 trillion in New York.

These figures show that corporate scale spans several U.S. economic centers. Texas has a large mix of energy, technology, retail, and other businesses. California remains a major technology center, with companies such as Apple, Alphabet, NVIDIA, and Meta. Washington is also important, with Amazon and Microsoft headquartered there.

Why Do the Largest U.S. Companies Matter?

The largest companies in the United States matter because their operations reach far beyond their own businesses.

They create jobs. Large retailers, logistics firms, health care companies, and technology businesses employ millions of people.

They shape markets. Major companies can affect suppliers, competitors, customers, and entire industry chains.

They drive technology. AI, cloud computing, semiconductors, automation, and digital services are major areas of investment among the largest firms.

They influence daily life. Companies such as Amazon, Walmart, Apple, Microsoft, and UnitedHealth provide products and services used by millions of people.

They support large supply chains. Retailers, manufacturers, energy firms, and distributors connect businesses and consumers across the country and the world.

Their size also means their performance can have a broad effect on investors, suppliers, workers, and consumers.

Conclusion

Amazon leads the current U.S. public-company revenue list, while NVIDIA leads by market cap. Walmart leads by employee count, and Apple leads by brand-value ranking. The largest companies in the United States look different depending on the measure used.

These differences give a fuller view of corporate scale. They also show why rankings should always state the metric, source, and date used. Since revenue and market values change, the numbers in these lists can change over time.

FAQs

Sources:

• https://companiesmarketcap.com/usa/largest-american-companies-by-revenue/
• https://companiesmarketcap.com/usa/largest-companies-in-the-usa-by-market-cap/
• https://companiesmarketcap.com/usa/largest-american-companies-by-number-of-employees/
• https://static.brandirectory.com/reports/brand-finance-global-500-2026-preview.pdf
• https://www.forbes.com/lists/top-private-companies/