Nvidia rules the tech world in October 2026 at about $5.08 trillion, with Apple essentially level at about $5.07 trillion. We ranked the 10 largest technology companies by market value, calculated from share counts in company filings and closing prices on October 23, 2026.
Our original 2015 list named the Huffington Post, Tumblr, Amazon, eBay, Twitter, Facebook, Yahoo, Google, Apple and Microsoft. Only Amazon, Meta (Facebook), Alphabet (Google), Apple and Microsoft are still on this list, and the rest have been overtaken by a new generation of chip and cloud giants.
| Rank | Company | Market value (Oct 23, 2026) |
|---|---|---|
| 1 | Nvidia | $5.08 trillion |
| 2 | Apple | $5.07 trillion |
| 3 | Alphabet (Google) | $3.92 trillion |
| 4 | Microsoft | $3.89 trillion |
| 5 | Amazon | $2.67 trillion |
| 6 | TSMC | $2.17 trillion |
| 7 | Meta Platforms | $1.65 trillion |
| 8 | Broadcom | $1.54 trillion |
| 9 | Tesla | $1.47 trillion |
| 10 | Oracle | $381 billion |
Which are the 10 biggest tech companies in the world?
1. Nvidia: $5.08 trillion
Designs the GPUs and AI systems that power most AI data centers. started in gaming graphics.
How we valued it: about 24.10 billion shares per its latest filing, times $210.96 per share.
2. Apple: $5.07 trillion
Founded by Steve Jobs, Steve Wozniak and Ronald Wayne to sell the Apple I. Today it sells the iPhone and Mac and runs a large services business.
How we valued it: about 14.59 billion shares per its latest filing, times $347.725 per share.
3. Alphabet (Google): $3.92 trillion
Google was founded by Larry Page and Sergey Brin in 1998. Alphabet became the parent company in 2015.
How we valued it: about 12.23 billion shares per its latest filing, times $320.21 per share.
4. Microsoft: $3.89 trillion
Founded by Bill Gates and Paul Allen. Its products include Windows, Office, Azure cloud and Xbox.
How we valued it: about 7.43 billion shares per its latest filing, times $524.51 per share.
5. Amazon: $2.67 trillion
Jeff Bezos started with books in 1994. It now spans retail and Amazon Web Services.
How we valued it: about 10.79 billion shares per its latest filing, times $248 per share.
6. TSMC: $2.17 trillion
The Taiwanese contract chipmaker that builds chips for much of the industry.
How we valued it: our estimate of about 25.9 billion shares, or 5.19 billion ADR equivalents, at the $418.51 ADR price.
7. Meta Platforms: $1.65 trillion
Started as TheFacebook in 2004. Renamed Meta in 2021. Owns Facebook, Instagram and WhatsApp.
How we valued it: about 2.57 billion shares per its latest filing, times $642.62 per share.
8. Broadcom: $1.54 trillion
Chip and infrastructure software company. bought VMware in a deal valued at $69 billion, closed in November 2023.
How we valued it: about 4.77 billion shares per its latest filing, times $321.68 per share.
9. Tesla: $1.47 trillion
Incorporated in 2003 by Martin Eberhard and Marc Tarpenning. Elon Musk led its first funding round in 2004.
How we valued it: about 3.95 billion shares per its latest filing, times $372.22 per share.
10. Oracle: $381 billion
It sells database software, enterprise applications and cloud infrastructure.
How we valued it: about 3.02 billion shares per its latest filing, times $126.16 per share.
What happened to the 2015 list?
Yahoo is now a web portal owned 90% by Apollo Global Management and 10% by Verizon. Tumblr, which Yahoo bought for $1.1 billion in 2013, is part of Automattic. The Huffington Post, bought by AOL for $315 million in 2011, has been HuffPost and a BuzzFeed property since November 2020. Twitter was bought by Elon Musk for $44 billion in October 2022 and renamed X in 2023. eBay, still a major marketplace, no longer makes our top 10 by size.
Keep reading
- Are we in an AI bubble?: the question behind Nvidia’s rise
- Top companies that control everything you consume: the brands behind the shelves
- Technologies changing the world: what these companies are building
FAQ
Which is the biggest tech company in 2026?
By our market-value calculation on October 23, 2026, Nvidia is first at about $5.08 trillion, with Apple a hair behind at about $5.07 trillion.
What happened to Yahoo, Tumblr, Twitter and the Huffington Post from the 2015 list?
They no longer rule the list. Yahoo is 90% owned by Apollo Global Management and 10% by Verizon, Tumblr sits under Automattic, HuffPost joined BuzzFeed in November 2020, and Twitter was acquired by Elon Musk in October 2022 and rebranded as X in 2023.
How do you measure which tech company rules?
We use market value: shares outstanding from each company’s latest filing multiplied by the October 23, 2026 closing price. Revenue, profit and users tell different stories.
Which new companies joined the list since 2015?
Nvidia, TSMC, Broadcom, Tesla and Oracle are new, and Nvidia is now the largest. The 2015 list had no chipmakers at all.
Is Microsoft still a top tech company?
Yes. Microsoft is worth about $3.89 trillion and sits fourth on our list.
Is this list investment advice?
No. It is a snapshot of company size on one date. Share prices change daily.
How we estimate net worth
Our estimates are based on public reporting, company valuations, and deal and earnings figures all compiled in an internal valuation model. They are approximate, and figures change over time as new information emerges.
For this list we multiplied the shares outstanding reported in each company’s latest quarterly filing by its closing price on October 23, 2026. Where a company has several share classes or trades as an ADR, we say so in the entry and treat the figure as approximate.
Last updated: October 2026.
