Top 5 biggest companies in US.

The United States is home to some of the largest and most successful companies in the world. These companies are not only responsible for driving economic growth and creating jobs, but they also have a significant impact on the global business landscape. In this blog post, we'll take a look at the top 5 biggest companies in the US.

1. Walmart: Walmart is the largest company in the US by revenue. The retail giant operates a chain of discount department stores and warehouse stores, and had revenue of over $500 billion in 2020. With its wide range of products and competitive pricing, Walmart has become a household name and a go-to destination for many shoppers.

2. Berkshire Hathaway: Berkshire Hathaway, headed by Warren Buffett, is the second largest company in the US. The conglomerate operates in a variety of industries, including energy, insurance, and finance. In 2020, Berkshire Hathaway had revenue of over $254 billion.

3. Amazon: Amazon, the e-commerce giant, is the third largest company in the US. The company, which started as an online bookstore, now sells a wide range of products and services and also offers streaming services, cloud computing, and other digital services. In 2020, Amazon had revenue of over $386 billion.

4. ExxonMobil: ExxonMobil is the fourth largest company in the US. The multinational oil and gas corporation had revenue of over $180 billion in 2020. ExxonMobil is one of the world's largest publicly traded oil and gas companies and has operations in more than 50 countries.

5. UnitedHealth Group: UnitedHealth Group is the fifth largest company in the US. The health insurance and managed care company had revenue of over $242 billion in 2020. UnitedHealth Group is one of the largest providers of health benefits in the US and serves millions of customers globally.

The above list is based on revenue and it is important to note that the ranking of companies may change over time due to various factors such as mergers, acquisitions, market conditions, and company performance.