Biggest Companies in the World by Market Cap

AAPL, MSFT, and GOOGL lead the list of the biggest companies in the world

The world's biggest companies by market cap operate within a range of different market sectors, including technology, communication services, energy, consumer cyclicals, and financial services. A company's market cap is calculated by multiplying the total number of its shares outstanding by the current market price of a single share. The majority of the companies making up the top-ten list generate hundreds of billions of dollars in annual revenue. However, there are a few that generate less than $100 billion in annual revenue, suggesting that investors are optimistic about the potential growth of these companies compared to the others in the list.

All data below, except for the total return of the Saudi Arabian Oil Co. (2222.SR), are courtesy of YCharts.com. The total return for Saudi Arabian Oil, which does not trade on any U.S. exchange, is courtesy of TradingView and all dollar values of data for the company were converted using an exchange rate of 1 USD to 3.75 Saudi riyal on Dec. 10, 2021. All figures below are as of Dec. 10.

#1 Apple Inc. (AAPL)

  • Revenue (TTM): $365.8 billion
  • Net Income (TTM): $94.7 billion
  • Market Cap: $2.9 trillion
  • 1-Year Trailing Total Return: 44.2%
  • Exchange: NASDAQ

Apple designs, manufactures, and markets a broad range of consumer technology products, including smartphones, personal computers, tablets, wearable devices, home entertainment devices, and more. Some of its most popular products include its iPhone smartphones and Mac computers. Apple also has dramatically expanded its sales from services. It operates digital content stores, provides cloud and payment services, and recently launched Apple+, a streaming service for on-demand entertainment content.

#2 Microsoft Corp. (MSFT)

  • Revenue (TTM): $176.3 billion
  • Net Income (TTM): $67.9 billion
  • Market Cap: $2.6 trillion
  • 1-Year Trailing Total Return: 58.6%
  • Exchange: NASDAQ

Microsoft is a global developer and licensor of software, devices, solutions, and services. The company is well known for its Windows and Office Suite software. The company is getting a growing share of its profit and revenue from cloud computing services, where it is one of the market leaders. Microsoft's main cloud platform is called Azure. Microsoft also owns and operates LinkedIn, the popular social networking site for job seekers.

#3 Alphabet Inc. (GOOGL)

  • Revenue (TTM): $239.2 billion
  • Net Income (TTM): $70.6 billion
  • Market Cap: $2.0 trillion
  • 1-Year Trailing Total Return: 66.1%
  • Exchange: NASDAQ

Alphabet is the parent of Google, whose search engine dominates the global market. The company offers a range of technologies and digital services, including search, the Android smartphone operating system, Chrome browser, Gmail email services, Google Drive online file storage platform, Google Maps, Google Photos, Google Play app store, and YouTube. The company also provides cloud services through Google Cloud, which allows developers to create and deploy applications, as well as use a variety of workspace collaboration tools. Alphabet also operates an Other Bets segment that includes emerging businesses such as the self-driving car business Waymo.

#4 Saudi Arabian Oil Co. (2222.SR)

  • Revenue (TTM): $350.8 billion
  • Net Income (TTM): $92.7 billion
  • Market Cap: $1.9 trillion 
  • 1-Year Trailing Total Return: 1.5%
  • Exchange: Tadawul (Saudi Stock Exchange)

Saudi Arabian Oil, better known as Saudi Aramco, is a Saudi Arabia-based integrated oil and gas company. The company operates both an upstream and downstream segment. Its upstream segment engages in the exploration and production of crude oil, condensate, natural gas, and natural gas liquids (NGL). The downstream segment is engaged in refining and petrochemical manufacturing, distribution, and power generation. Saudi Aramco also operates a chemicals business that makes products such as aromatics and olefins, and complex products such as synthetic rubber.

#5 Amazon.com Inc. (AMZN)

  • Revenue (TTM): $458.0 billion
  • Net Income (TTM): $26.3 billion
  • Market Cap: $1.7 trillion
  • 1-Year Trailing Total Return: 12.2%
  • Exchange: NASDAQ

Amazon.com is an e-commerce retailer that sells a broad range of products and services globally and is the world's biggest provider of cloud computing services. Its e-commerce business includes merchandise and content that it purchases for resale from vendors and those offered by third-party sellers. Amazon offers various subscription services and web services as well, including its cloud computing service and fast-growing streaming entertainment business. Additionally, the company manufactures and sells electronic devices, such as Kindle E-readers, Fire Tablets, Fire TV, and Echo & Alexa. Amazon sells groceries through its subsidiary, Whole Foods Market Inc.

#6 Tesla Inc. (TSLA)

  • Revenue (TTM): $46.9 billion
  • Net Income (TTM): $3.5 billion
  • Market Cap: $1.0 trillion
  • 1-Year Trailing Total Return: 66.1%
  • Exchange: NASDAQ

Tesla is a leading manufacturer of electric vehicles (EVs). The company's vehicle models include: the Model 3, a four-door, mid-size sedan designed and priced for mass-market appeal; the Model Y, a compact sport utility vehicle (SUV) that seats seven adults; Model S, a four-door, full-size sedan; and Model X, a mid-size SUV with seating for up to seven adults. The company's plans include the development and manufacture of a Cybertruck, and a Tesla Semi, which is a commercial EV. Tesla also produces solar panels, provides solar energy generation, and energy storage products.

#7 Meta Platforms Inc. (FB)

  • Revenue (TTM): $112.3 billion
  • Net Income (TTM): $40.3 billion
  • Market Cap: $917.5 billion
  • 1-Year Trailing Total Return: 18.7%
  • Exchange: NASDAQ

Meta Platforms is the owner of Facebook, the world's largest social network. Meta provides products and digital platforms that enable individual and businesses to connect with family and friends through mobile devices, personal computers, virtual reality (VR) headsets, and in-home devices. In addition to Facebook, it offers: Instagram, a photo-sharing app; and Messenger and WhatsApp, two separate messaging apps. The company also operates Facebook Reality Labs, which offers augmented and virtual reality products. Meta is also investing in and building the "metaverse", an expansive virtual world that combines aspects of social media, online gaming, augmented reality (AR), VR, and cryptocurrencies.

#8 NVIDIA Corp. (NVDA)

  • Revenue (TTM): $24.3 billion
  • Net Income (TTM): $8.2 billion
  • Market Cap: $755.1 billion
  • 1-Year Trailing Total Return: 136.0%
  • Exchange: NASDAQ

NVIDIA designs and develops graphics processors and related software. It was a pioneer in the development of the graphics processing unit (GPU), whose initial primary applications were in PC graphics and video games. The capabilities of the GPU are now being leveraged for use in AI and machine-learning applications. The company offers products and platforms comprised of hardware, software, services, and more to serve the gaming, professional visualization, data center, and automotive markets.

#9 Berkshire Hathaway Inc. (BRK.A)

  • Revenue (TTM): $346.1 billion
  • Net Income (TTM): $86.0 billion
  • Market Cap: $647.7 billion
  • 1-Year Trailing Total Return: 25.8%
  • Exchange: New York Stock Exchange (NYSE)

Berkshire Hathaway owns a large number of subsidiaries engaged in a diverse range of business activities, including insurance, freight rail transportation, retailing, and utility and energy generation and distribution. The company also operates manufacturing businesses that make products for industrial uses, construction, and for consumers.

#10 Taiwan Semiconductor Manufacturing Co. Ltd. (TSM)

  • Revenue (TTM): $53.8 billion
  • Net Income (TTM): $20.3 billion
  • Market Cap: $617.5 billion
  • 1-Year Trailing Total Return: 16.3%
  • Exchange: NYSE

Taiwan Semiconductor Manufacturing Co., or TSMC, is a Taiwan-based company that operates as a semiconductor foundry. The company manufactures a broad variety of semiconductors on silicon wafers based on the proprietary integrated circuit designs provided by its customers. Its semiconductors are used in a range of electronics products, including PCs and peripheral products, information applications, wired and wireless communication systems, industrial equipment, digital TVs, game consoles, and more.

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  1. YCharts. "Financial Data." Accessed Dec. 10, 2021.

  2. TradingView. "Price Chart: 2222.SR." Accessed Dec. 10, 2021.