Nvidia (NVDA -1.03%) is the largest company in the technology sector and overall in November 2025. Apple (AAPL -0.71%) is No. 2, and Microsoft (MSFT -2.50%) is close behind in third. The biggest tech companies by market cap are spread across a range of industries, including consumer electronics, semiconductor manufacturing, cloud computing, and e-commerce.
Largest companies by market cap in the technology sector
(Editor's note: Rankings are as of Nov. 5, 2025.)
1. Nvidia
NASDAQ: NVDA
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NASDAQ: AAPL
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- Market cap: $3.99 trillion (as of Nov. 5)
- Revenue (TTM): $416.2 billion
- Gross profit (TTM): $195.2 billion
- Five-year annualized return: 18.46%
- Year founded: 1976
Apple is a consumer electronics company with a long list of popular products, including the iPhone, MacBook, iPad, Apple Watch, and AirPods. It became the world's biggest company in August 2011 and has spent quite a bit of time at the top since then. However, it hasn't all been smooth sailing for Apple in recent years.
The Apple Vision Pro, a mixed-reality headset, posted disappointing sales numbers. The release of Apple Intelligence, an AI technology, has also gotten mixed reviews, and the company is embroiled in an antitrust lawsuit with the U.S. Department of Justice.
3. Microsoft
NASDAQ: MSFT
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- Market cap: $3.77 trillion (as of Nov. 5)
- Revenue (TTM): $293.8 billion
- Gross profit (TTM): $202.0 billion
- Five-year annualized return: 19.16%
- Year founded: 1975
Microsoft is the largest software company, and it's most well-known for the Windows operating system, which is used by 66% of the world's desktop computers. In addition, it offers a wide range of products, including Microsoft Office software, Azure cloud computing, and Xbox video game systems.
Like most major tech companies, Microsoft has invested heavily in AI. In 2019, it started investing in OpenAI and has since developed Microsoft Copilot, an AI-powered digital assistant.
During its 2025 fiscal year ending on June 30, 2025, Microsoft invested $88 billion to build AI-enabled data centers. However, it has also had multiple rounds of layoffs this year, cutting more than 15,000 jobs.
4. Broadcom
NASDAQ: AVGO
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NYSE: TSM
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- Market cap: $1.52 trillion (as of Nov. 5)
- Revenue (TTM): $117.4 billion*
- Gross profit (TTM): $69.2 billion*
- Five-year annualized return: 28.44%
- Year founded: 1987
*Converted from New Taiwan dollars.
Taiwan Semiconductor Manufacturing is a global leader in the research, design, and manufacture of semiconductors. It produces chips for many of the major tech companies, including Apple, its biggest customer.
This semiconductor company is heavily expanding its operations in 2025. In March, it announced plans to invest $100 billion to build multiple U.S. facilities. It also opened a plant in Kaohsiung, Taiwan.
6. Oracle
NYSE: ORCL
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NASDAQ: PLTR
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NASDAQ: AMD
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NASDAQ: ASML
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- Market cap: $304.03 billion (as of Nov. 5)
- Revenue (TTM): $41.9 billion*
- Gross profit (TTM): $30.9 billion*
- Five-year annualized return: 19.78%
- Year founded: 1972
*Converted from euros.
German company SAP is the world's largest provider of enterprise resource planning (ERP) software. It offers products for supply chain and asset management, human resources and workforce analytics, and application integration and automation.
SAP is a competitor to Oracle and has been acquiring cloud-based product companies for more than a decade. In August 2025, it entered into an agreement to acquire SmartRecruiters, an AI recruiting company. Then, in September 2025, it announced plans to invest more than $23 billion into its sovereign cloud systems in Europe over the next 10 years.
This tech company has had some legal troubles over the years. In 2024, SAP agreed to pay more than $220 million in fines to settle bribery charges.
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Technology sector takeaways for investors
The tech sector is an exciting one, and it's not unusual for companies in this sector to deliver market-beating returns. Most companies on this list have outperformed the S&P 500 over the last five years. Nvidia, Broadcom, and Palantir have done particularly well.
The tradeoff is that tech stocks tend to be volatile. For example, Nvidia has seen both the biggest one-day gains and losses in Wall Street history. Tech companies also frequently trade at high valuations.
The Trump administration's import tariffs also pose a serious concern for the technology sector, assuming those tariffs stay in place. At the end of August, a federal appeals court ruled that many of the tariffs are illegal, and their status was up in the air pending an appeal to the U.S. Supreme Court. Major tech companies have global supply chains, so tariffs force them to either relocate their manufacturing facilities or deal with increased costs.
There's a greater risk associated with investing in tech stocks, and it's important to carefully research growth prospects for any you're considering. Even with the risk, technology companies are well worth it for the potential returns. After all, many of the world's most successful companies are in the tech sector.
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