Nvidia (NVDA +3.80%) is the largest company in the technology sector and overall in December 2025. Apple (AAPL +0.17%) is close behind in second, and Microsoft (MSFT +0.22%) is 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 Dec. 2, 2025.)
1. Nvidia
NASDAQ: NVDA
Key Data Points
NASDAQ: AAPL
Key Data Points
- Market cap: $4.20 trillion (as of Dec. 2)
- Revenue (TTM): $416.2 billion
- Gross profit (TTM): $195.2 billion
- Five-year annualized return: 18.76%
- 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
Key Data Points
- Market cap: $3.62 trillion (as of Dec. 2)
- Revenue (TTM): $293.8 billion
- Gross profit (TTM): $202.0 billion
- Five-year annualized return: 18.69%
- Year founded: 1975
Microsoft is the largest software company, and it's most well-known for the Windows operating system, which is used by about 70% 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 in 2025, cutting more than 15,000 jobs.
4. Broadcom
NASDAQ: AVGO
Key Data Points
NYSE: TSM
Key Data Points
- Market cap: $1.49 trillion (as of Dec. 2)
- Revenue (TTM): $115.6 billion*
- Gross profit (TTM): $68.2 billion*
- Five-year annualized return: 25.76%
- 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
Key Data Points
- Market cap: $436.00 billion (as of Dec. 2)
- Revenue (TTM): $215.1 billion
- Gross profit (TTM): $78.8 billion
- Five-year annualized return: 11.65%
- Year founded: 1938
*Converted from South Korean won.
Based in South Korea, Samsung is a consumer electronics company known for its smartphones, tablets, and TVs. It recently announced the Galaxy Z TriFold, its first multi-folding smartphone. It also sells home appliances, including refrigerators and washing machines.
Samsung announced a shift toward high-end chips and AI-related products in 2024. Through this initiative, it aims to increase profitability and position itself as a leader in the growing AI market.
8. ASML
NASDAQ: PLTR
Key Data Points
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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