Technology companies have become a dominant driver in recent years of economic growth, consumer tastes and the financial markets. The biggest tech stocks as a group, for example, have dramatically outpaced the broader market in the past decade. That's because technology has reshaped in a major way how people communicate, consume information, shop, socialize, and work.

Broadly speaking, companies in the technology sector engage in the research, development, and manufacture of technologically based goods and services. They create software, and design and manufacture computers, mobile devices, and home appliances. They also provide products and services related to information technology.

Below we look at the 10 biggest technology companies measured by trailing 12-months (TTM) revenue. This list is limited to companies which are publicly traded in the U.S. or Canada, either directly or through ADRs. The one exception is Samsung, which is far too large to exclude from the list, yet unlike many large companies outside the U.S. does not have an ADR. Some foreign companies may report semiannually, and so may have longer lag times. It's important to note that 6 of the biggest ten are U.S. companies, illustrating America's continued dominance in technology. Two are Japanese, one is South Korean, and one is Taiwanese. None of the biggest companies are from Mainland China. Data is courtesy YCharts.com. All figures are as of May 13, 2020.

Some of the stocks below are only traded over-the-counter (OTC) in the U.S., not on exchanges. Trading OTC stocks often carries higher trading costs than trading stocks on exchanges. This can lower or even outweigh potential returns.

#1 Apple Inc. (AAPL)

  • Revenue (TTM): $268.0 billion
  • Net Income (TTM): $57.2 billion
  • Market Cap: $1.4 trillion
  • 1-Year Trailing Total Return: 59.8%
  • 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 and recently launched several streaming services, including Apple+, a platform for on-demand entertainment content.

#2 Samsung Electronics Co. Ltd. (005930.KS)

  • Revenue (TTM): $197.5 billion
  • Net Income (TTM): $18.4 billion
  • Market Cap: $325.4 billion
  • 1-Year Trailing Total Return: 17.2% 
  • Exchange: Korean Stock Exchange

Samsung Electronics competes with Apple and other major tech companies worldwide in key product areas. It's engaged in a broad range of businesses, including consumer electronics, information technology, and communications. The South Korean company sells mobile phones, tablets, wearable devices, virtual reality products, TVs and home theaters, computers, printers, home appliances, and more. Samsung is best known for its popular line of Galaxy smartphones.

#3 Hon Hai Precision Industry Co. Ltd. (HNHPF)

  • Revenue (TTM): $173.1 billion
  • Net Income (TTM): $3.7 billion
  • Market Cap: $36.0 billion
  • 1-Year Trailing Total Return: 0.7%
  • Exchange: OTC

Hon Hai Precision, also known as Foxconn, is a Taiwan-based multinational electronics manufacturer. The company produces electronics and electronic components for use in the information technology, communications, automotive equipment, automobile, precision molding, and consumer electronics industries. Foxconn is a key supplier in Apple's supply chain, manufacturing a significant proportion of its iPhones.

#4 Microsoft Corp. (MSFT)

  • Revenue (TTM): $138.7 billion
  • Net Income (TTM): $46.3 billion
  • Market Cap: $1.4 trillion
  • 1-Year Trailing Total Return: 45.5%
  • 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, and has developed its own cloud platform called Azure. Microsoft also owns and operates LinkedIn, the popular social networking site for job seekers.

#5 Dell Technologies Inc. (DELL)

  • Revenue (TTM): $92.2 billion
  • Net Income (TTM): $4.6 billion
  • Market Cap: $31.2 billion
  • 1-Year Trailing Total Return: -37.1%
  • Exchange: New York Stock Exchange

Dell designs, makes and sells hardware, information technology products, and services worldwide. The company offers desktop and laptop computers, traditional and next-generation storage solutions, and networking products. Dell also sells a cloud-native platform and cloud management solutions. Dell's best-known products are its personal computers.

#6 Sony Corp. (SNE)

  • Revenue (TTM): $79.3 billion
  • Net Income (TTM): $6.0 billion
  • Market Cap: $80.0 billion
  • 1-Year Trailing Total Return: 32.4%
  • Exchange: New York Stock Exchange

Sony is a Japanese technology company that designs and produces electronics products for consumer, professional, and industrial markets worldwide. The company sells products including personal computers, mobile phones, video game consoles and software, and video cameras. It also produces and distributes recorded music, as well as live-action and animated motion pictures. Sony makes and sells PlayStation, the popular video game console.

#7 International Business Machines Corp. (IBM)

  • Revenue (TTM): $76.5 billion
  • Net Income (TTM): $9.0 billion
  • Market Cap: $106.8 billion
  • 1-Year Trailing Total Return: -8.1%
  • Exchange: New York Stock Exchange

IBM is an integrated solutions and services company, also referred to as "Big Blue." The company offers software and IT solutions for a broad range of uses, including healthcare, financial services, Internet of Things (IoT), weather, security, as well as cloud-computing services. The company is known for its powerful Watson computer, which offers a suite of enterprise-ready AI services, applications, and tools.

#8 Intel Corp. (INTC)

  • Revenue (TTM): $75.7 billion
  • Net Income (TTM): $22.7 billion
  • Market Cap: $247.2 billion
  • 1-Year Trailing Total Return: 29.3%
  • Exchange: Nasdaq

Intel is a premier global producer of computer chips and a provider of computing, networking, data storage, and communication solutions. The company offers platform products for the cloud, enterprise, and communication infrastructure markets. Intel provides flash memory, programmable semiconductors, and processors for notebooks, mobile devices, and desktop computers. The company is well known for its high-performance processors used in PCs worldwide by businesses and consumers.

#9 Panasonic Corp. (PCRFY)

  • Revenue (TTM): $70.4 billion
  • Net Income (TTM): $2.6 billion
  • Market Cap: $17.4 billion
  • 1-Year Trailing Total Return: -10.6%
  • Exchange: OTC

Panasonic is a Japan-based developer, manufacturer, and servicer of electronic products primarily for the consumer market. The company offers personal computers, tablets, projectors, as well as broadcast and professional AV systems. Panasonic also produces appliances such as air conditioners, TVs, refrigerators, and washing machines.

#10 HP Inc. (HPQ)

  • Revenue (TTM): $58.7 billion
  • Net Income (TTM): $3.0 billion
  • Market Cap: $21.3 billion
  • 1-Year Trailing Total Return: -19.5%
  • Exchange: New York Stock Exchange

HP makes and sells products used for personal computing, imaging and printing, as well as related technologies, solutions, and services. The company offers personal computers, workstations, commercial mobility devices, retail point-of-sale systems, and software. HP is perhaps best known for its printer hardware and scanning devices used by consumers and businesses globally.