Top 10 biggest companies in the United States (2025)

In today’s globalized world, the biggest companies play a significant role in shaping the economy and society. The United States is home to some of the world’s largest and most influential companies, including tech giants like Apple, Microsoft, Alphabet, and Amazon, as well as companies in healthcare, finance, and energy. 

In this article, we will take a closer look at the top 10 biggest companies in the US and their impact on the economy and society.

The biggest U.S. companies

Rank	Companies	Market capitalization (USD $)
1.	Apple (AAPL)	2,341 trillion
2.	Microsoft (MSFT)	1,858 trillion
3.	Alphabet (GOOG)	1,149 trillion
4.	Amazon (AMZN)	955.56 billion
5.	Berkshire Hathaway (BRK-B)	671.64 billion
6.	Tesla (TSLA)	657.08 billion
7.	NVIDIA (NVDA)	587.14 billion
8.	Visa (V)	462.30 billion
9.	UnitedHealth (UNH)	451.91 billion
10.	Exxon Mobil (XOM)	449.51 billion

1. Apple (AAPL)

Market capitalization: $2,341 trillion

Apple is a technology giant that has revolutionized the way we use electronic devices. The electronic manufacturer is the biggest company in the US. The company’s success can be attributed to its ability to innovate and create products that are user-friendly and visually appealing. Apple’s flagship product, the iPhone, has become a cultural icon, and the company has sold over 2 billion units worldwide. 

Apple is also known for its software and online services. The company’s iOS and macOS operating systems are hailed for their stability and ease of use. Apple’s App Store is second largest app marketplace in the world, with over 1.6 million apps available for download. Apple Music, Apple’s streaming music service, has over 70 million subscribers worldwide. 

Apple’s commitment to sustainability is also worth noting, with strong attention to a significant ESG program. The company has set a goal of becoming carbon neutral by 2030, and has made significant investments in renewable energy and energy efficiency. 

2. Microsoft (MSFT)

Market capitalization: $1,858 trillion

Microsoft is a technology company that has played a major role in the development of the technology industry. The company’s Windows operating system has been the dominant player in the PC market for decades. 

Microsoft is also known for its Office suite of productivity software, which includes Word, Excel, and PowerPoint. In recent years, Microsoft has expanded into new areas of technology, including artificial intelligence and cloud computing. The company’s Azure cloud platform is one of the largest in the world, and is used by businesses of all sizes to run their operations. Microsoft’s commitment to sustainability is also noteworthy.

The company has set a goal of becoming carbon negative by 2030, and has invested in renewable energy and energy efficiency. Microsoft also operates one of the largest corporate sustainability programs in the world, and has been recognized for its efforts to reduce its environmental impact. Microsoft is the second largest company in the US. 

3. Alphabet (GOOGL)

Market capitalization: $1,149 trillion

Alphabet is the parent company of Google, the world’s most popular search engine. Google’s search engine is used by billions of people worldwide, and the company’s advertising platform is the largest in the world. In addition to its search engine and advertising business, Alphabet is involved in a variety of other technology-related businesses. These include the Android mobile operating system, the Chrome web browser, and the Google Cloud platform. 

Alphabet is also involved in cutting-edge technology, including artificial intelligence and autonomous vehicles. The company’s Waymo subsidiary is a leader in the development of self-driving cars. Alphabet’s commitment to sustainability is also worth noting. The company has set a goal of being carbon neutral by 2020, and has invested in renewable energy and energy efficiency. Alphabet has also been recognized for its efforts to reduce its environmental impact, including its commitment to using renewable energy to power its operations.

4. Amazon (AMZN)

Market capitalization: $955.56 billion

Amazon is the world’s largest online retailer, selling a wide range of products to customers around the world. The company’s success can be attributed to its massive selection of products, competitive pricing, and fast shipping options. In addition to its retail business, Amazon also produces consumer electronics, including the Amazon Echo smart speaker and the Fire TV streaming device. 

Amazon has also made significant investments in cloud computing through its Amazon Web Services (AWS) division. AWS provides a range of cloud-based services to businesses, including computing power, storage, and analytics. Amazon’s commitment to sustainability is also noteworthy.

The company has set a goal of becoming carbon neutral by 2040, and has made significant investments in renewable energy and energy efficiency. In addition, Amazon has launched a number of initiatives aimed at reducing waste, including its “Frustration-Free Packaging” program.

5. Berkshire Hathaway (BRK-B)

Market capitalization: $671.64 billion

Berkshire Hathaway is a holding company that owns a diverse portfolio of businesses, including insurance, retail, manufacturing, and energy. The company is known for its long-term investment strategy, and is headed by legendary investor Warren Buffett. Berkshire Hathaway’s insurance business, which includes GEICO and Berkshire Hathaway Reinsurance Group, is a major source of the company’s revenue. 

In addition, the company owns a number of well-known consumer brands, including Dairy Queen, Duracell, and Fruit of the Loom. Berkshire Hathaway is also involved in the energy sector through its subsidiary, Berkshire Hathaway Energy. The company owns a number of utilities in the United States, including PacifiCorp and NV Energy.

6. Tesla (TSLA)

Market capitalization: $657.08 billion

Tesla is a technology company that specializes in electric vehicles and renewable energy. The company’s electric cars, including the Model S, Model X, and Model 3, have gained a loyal following among consumers who are looking for a more sustainable mode of transportation.

In addition to its electric car business, Tesla is involved in the production of energy storage products, including the Powerwall and Powerpack. These products are designed to store energy from renewable sources, such as solar panels, for use in homes and businesses. 

Tesla is also involved in the development of autonomous driving technology. The company’s Autopilot system is designed to assist drivers with tasks such as parking and highway driving, and is considered to be one of the most advanced autonomous driving systems currently available. Tesla’s commitment to sustainability is also worth noting.

The company has set a goal of becoming carbon neutral by 2030, and has invested in renewable energy and energy efficiency. In addition, Tesla has launched a number of initiatives aimed at reducing its environmental impact, including its “closed-loop” battery recycling program.

7. NVIDIA (NVDA)

Market capitalization: $587.14 billion

NVIDIA is a technology company that specializes in graphics processing units (GPUs) and artificial intelligence (AI) technology. The company’s GPUs are used in a wide range of industries, including gaming, virtual reality, and scientific research. NVIDIA has also made significant investments in AI technology, developing hardware and software solutions that are used in autonomous vehicles, robotics, and other applications. 

In addition, the company’s GPUs are used in data centers for high-performance computing tasks. NVIDIA’s commitment to sustainability is also worth noting. The company has set a goal of achieving carbon neutrality by 2025, and has made significant investments in renewable energy and energy efficiency.

8. Visa (V)

Market capitalization: $462.30 billion

Visa is a global payments technology company that provides payment processing services to businesses and consumers around the world. The company’s payment network enables secure and convenient transactions using credit, debit, and prepaid cards. Visa’s payment technology is used by millions of merchants worldwide, and the company is a leader in the mobile payments industry. 

In addition to its core payment processing business, Visa also provides a range of financial services, including fraud prevention and data analytics. Visa’s commitment to sustainability is reflected in its focus on responsible business practices and environmental stewardship. The company has set a goal of achieving carbon neutrality by 2021, and has made significant investments in renewable energy and energy efficiency.

9. UnitedHealth (UNH)

Market capitalization: $451.91 billion

UnitedHealth Group is a healthcare company that provides a range of healthcare services and products to consumers and businesses. The company’s services include health insurance, pharmacy benefit management, and healthcare consulting. UnitedHealth is one of the largest health insurance companies in the United States, serving more than 50 million people. The company is also involved in the development of innovative healthcare solutions, such as telemedicine and digital health tools. 

UnitedHealth’s commitment to sustainability is reflected in its efforts to reduce waste and promote energy efficiency in its operations. The company has set a goal of reducing its greenhouse gas emissions by 50% by 2030, and has made significant investments in renewable energy and energy efficiency. In addition, UnitedHealth is involved in a number of community health initiatives aimed at improving access to healthcare for underserved populations.

10. Exxon Mobil (XOM)

Market capitalization: $449.51 billion

Exxon Mobil is a multinational oil and gas company that operates in more than 50 countries around the world. The company is involved in all aspects of the oil and gas industry, including exploration, production, refining, and marketing. Exxon Mobil is one of the largest companies in the world by revenue, and has a significant impact on the global energy landscape. 

However, the company has faced criticism for its role in contributing to climate change, and has been the subject of numerous environmental lawsuits and protests. Exxon Mobil has responded by making investments in renewable energy and developing technologies to reduce greenhouse gas emissions from its operations.

Conclusion

The United States is the world’s largest economy with some of the largest corporations in the globe. The article provides a detailed list of the biggest companies in the US.