Top 10 Biggest Companies in the World by Revenue 2026

The 2026 Fortune Global 500 ranks companies based on their revenue for the 2025 fiscal year. Together, the 500 companies on the list generated $43.1 trillion in revenue in 2025 up 3.2% from the previous year. They also employed 70.2 million people globally.

Amazon leads the ranking with revenue of about $716.9 billion, followed closely by Walmart at $713.2 billion. China's State Grid ranks third with about $555.4 billion in revenue.

Here is a closer look at the top 10 biggest companies in the world by revenue in 2026.

Top 10 Biggest Companies in the World by Revenue 2026

The figures above correspond to Fortune's 2026 Global 500 ranking, which places Amazon at No. 1, Walmart at No. 2 and State Grid at No. 3.

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1. Amazon

Amazon is the largest company in the world by revenue in the 2026 Fortune Global 500 ranking.

The US-based company generated approximately $716.9 billion in revenue, according to Fortune's company data. Amazon operates across e-commerce, cloud computing, digital advertising, entertainment and consumer electronics.

Its Amazon Web Services business is an important part of the company's broader technology operations, while its retail business continues to generate enormous sales volumes. Fortune says Amazon became the world's biggest company by revenue in 2026, ending Walmart's long run at the top.

2. Walmart

Walmart ranks second among the world's biggest companies by revenue, with about $713.2 billion in revenue used for the 2026 Fortune Global 500 ranking.

The US retail giant operates a huge network of stores, supply chains and e-commerce services across multiple markets. Its scale comes largely from its retail operations and massive customer base.

Although Walmart remains extremely close to Amazon in revenue, Amazon moved ahead in the latest Fortune ranking. Fortune's data shows Walmart's revenue for the ranking at $713.2 billion.

It is important to note that Walmart's latest trailing-12-month revenue shown on Fortune's company page is higher than the figure used in the Global 500 ranking. This is because the two figures represent different reporting periods.

3. State Grid

State Grid Corporation of China ranks third with approximately $555.4 billion in revenue.

The Beijing-based utility is involved in China's electricity transmission and distribution system and is one of the largest utility businesses globally.

Fortune reports State Grid revenue of $555.371 billion and more than 1.3 million employees. The company is also government-owned, with the Chinese government holding at least 50%.

State Grid's position in the top three highlights the scale of infrastructure and energy companies in the global economy.

4. UnitedHealth Group

UnitedHealth Group is the fourth-largest company in the 2026 Fortune Global 500 ranking, with approximately $447.6 billion in revenue.

The US healthcare company operates through businesses covering health insurance, healthcare services, pharmacy-related operations, technology, data and analytics.

Fortune reports UnitedHealth Group's 2025 revenue at $447.6 billion, placing it ahead of Saudi Aramco by revenue in the 2026 ranking.

Its position also shows how healthcare has become one of the largest revenue-generating sectors among the world's biggest corporations.

5. Saudi Aramco

Saudi Aramco ranks fifth with approximately $445.5 billion in revenue.

Based in Dhahran, Saudi Arabia, the company operates primarily in the energy and crude-oil production sector. Fortune reports revenue of $445.529 billion and profit of $92.785 billion for the figures used in its company profile.

Saudi Aramco's presence near the top of the global revenue ranking reflects the continuing importance of energy companies in the world economy.

6. Apple

Apple ranks sixth among the world's biggest companies by revenue in 2026.

The technology company recorded approximately $416.2 billion in revenue for the fiscal year used in the Fortune ranking. Its business includes the iPhone, Mac, iPad, wearables, software and a growing services ecosystem.

Fortune reports Apple's revenue at $416.161 billion for the fiscal year ended September 30, 2025.

Apple is the highest-ranked technology-focused consumer electronics company in the top 10.

7. McKesson

McKesson moved into the top 10, ranking seventh with about $403.4 billion in revenue.

The US company is a major healthcare distributor, supplying medicines and other healthcare products through its distribution network.

Fortune reports McKesson's revenue at $403.430 billion for the fiscal year ended March 31, 2026.

Its appearance in the top 10 also underlines the enormous scale of healthcare distribution where large revenue numbers can come from moving products through extensive supply chains.

8. Alphabet

Alphabet, the parent company of Google, ranks eighth with approximately $402.8 billion in revenue in the 2026 Fortune Global 500 ranking.

Alphabet's businesses include Google Search, YouTube, Google Cloud, advertising and various technology initiatives.

The company is one of the biggest technology groups globally, but its position in the Fortune ranking is based on revenue rather than market value. This distinction is important because company rankings can change significantly depending on whether they are measured by revenue, profit or market capitalization.

9. CVS Health

CVS Health ranks ninth, with approximately $402.1 billion in revenue.

The US healthcare company operates across pharmacies, healthcare services, insurance and pharmacy benefit management. Its businesses include CVS Pharmacy, CVS Caremark, Aetna and other healthcare operations.

Fortune reports CVS Health revenue of $402.067 billion in its company data.

The company is another example of the strong presence of healthcare businesses among the world's largest corporations by revenue.

10. China National Petroleum

China National Petroleum Corporation, or CNPC, completes the top 10 with approximately $401.9 billion in revenue.

The Beijing-based company operates in the petroleum and energy sector. Fortune reports revenue of $401.927 billion with excise taxes deducted and revenues from discontinued operations included in the reported figure.

CNPC's position gives China two companies in the top three and two companies in the overall top 10, alongside State Grid.

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What the 2026 Ranking Shows

The latest list shows that revenue leadership is spread across several major industries.

Retail remains highly important, with Amazon and Walmart occupying the first two positions. Energy and utilities also have a major presence through State Grid, Saudi Aramco and China National Petroleum.

Healthcare is another major part of the ranking. UnitedHealth Group, McKesson and CVS Health all appear in the top 10, while technology is represented by Amazon and Apple, along with Alphabet.

The ranking also highlights the scale of US corporations. Seven of the 10 companies in the 2026 top 10 are headquartered in the United States, while two are from China and one is from Saudi Arabia. Fortune's overall Global 500 list includes companies from many countries and industries.

Amazon Ends Walmart's Long Run at No. 1

One of the biggest changes in the 2026 Fortune Global 500 is Amazon taking the top position.

Fortune says Amazon's move to No. 1 ended Walmart's 12-year run as the world's largest company by revenue. The gap between the two companies is relatively small compared with their enormous overall revenue, with Amazon at about $716.9 billion and Walmart at about $713.2 billion.

The change also demonstrates why annual global company rankings can shift even when the companies themselves remain at enormous scale.

Why Revenue Is Used to Rank the Biggest Companies

Revenue measures the total income a company generates from its business during a reporting period. It is different from profit and market capitalization.

A company can have very high revenue but comparatively lower profit margins. Similarly, a technology company can have a much higher market value despite generating less revenue than a large retailer or energy company.

For this reason, the list of the biggest companies by revenue should not be treated as a list of the world's most valuable companies. It specifically measures corporate scale through revenue.

Fortune's 2026 Global 500 is based on companies' fiscal-year 2025 results and ranks the 500 largest corporations globally by revenue.

Conclusion

The world’s biggest companies by revenue in 2026 show the enormous scale of global retail, healthcare, technology, energy and infrastructure businesses. Amazon's move to the top is the headline change while Walmart remains close behind.

State Grid, UnitedHealth Group and Saudi Aramco demonstrate the scale of utilities, healthcare and energy while Apple, Alphabet and McKesson show how technology and healthcare businesses continue to occupy a major share of the global corporate landscape.

The ranking is based specifically on revenue, so it provides a view of business scale rather than company value or profitability. Fortune's full 2026 Global 500 remains the underlying reference for the ranking.