The top 100 companies in Silicon Valley

See Silicon Valley's real estate, employment, population, and innovation statistics

As a leader in the global economy, Silicon Valley's growth is closely watched around the world. In 2025, companies in the region posted $92B in venture capital deals and created 23,000 new patents. The average wage in the region is $189K, which is much higher than the national average, but the median home price sits around $2.25M—which calls the sustainability of the region's living standards into question.

Worth more than $14T, Silicon Valley may be getting too expensive for future founders.

Many of the top companies in the US by market cap began as tech startups

Combined, the top seven companies by market cap in the US as of December 2024—Apple, Nvidia, Microsoft, Alphabet, Amazon, Meta, and Tesla—were worth more than $16T at the time.

See a timeline of Silicon Valley's greatest innovations

Silicon Valley is home to some of the biggest innovations of the last century. From radio communicators in the 1930s, to personal computers in the 1970s, the Valley has been the center of technological innovation for decades.

The infrastructure, talent, and markets of Silicon Valley make the high-tech region ideal for startups

The number of startup employees, founders, and investors who have flocked to Silicon Valley over the years makes the California region ideal for networking in the tech space. Plus, California’s laws and specific rules around trade secrets help founders of fledgling businesses in Silicon Valley feel protected.

The world's 50 most valuable private companies

While public companies typically have the highest valuations, private companies get close. This list breaks down the top 50 as of 2025, with SpaceX at the top with a value of $350B, followed by ByteDance. Over three-fifths of the list are located in the US, with eight in China.

Before Silicon Valley became the largest tech hub in the world, it was an agricultural area known for its flowers and fruit

It was called the “Valley of Heart’s Delight.” This video by Vox explains how the area went from growing prunes to producing computer chips. It also explains how Stanford University had a big impact on the area’s development.

The main bank serving Silicon Valley startups and venture capitalists collapsed in 2023

Silicon Valley Bank—the 16th largest bank in the US—served many tech startups in the area as well as many venture capitalists. The bank collapsed in 2023—in a single day, bankers took out $42B.

Silicon Valley’s history in technology can be traced back to the late 1800s

From its developments in radio, defense technology, and personal computing, Silicon Valley has been associated with innovating tech for more than a century. This animated timeline of Silicon Valley’s history helps visualize its evolution.

See a list of 2024’s top 10 VC firms

A list of the top 10 VC firms, like Sequoia Capital and Andreessen Horowitz, ranked by assets under management shows how those two firms stack up against their competitors—and what kinds of companies those competitors invest in.

Your iPhone started with a Cold War secret

Silicon Valley wasn't supposed to happen. A stretch of California orchard land somehow became the place that built the modern world: chips, PCs, the internet, the smartphone, and now AI. But the real story isn't the garage myth. It's a series of contradictions hiding in plain sight.

The world’s top 20 cities for startups include San Francisco

In 2023, Singapore had the highest venture capital funding per capita in the world. But that doesn’t necessarily mean it’s the best place to have a startup. In 2023, PitchBook analyzed data to determine the world’s best startup city, including fundraising activity, venture capital deals, and exit value. San Francisco ranked as No. 1. See which other locales landed in the top 20 with this graphic.

Learn how eight 'traitors' played an essential role in founding Silicon Valley

In the 1950s, William Shockley led the way in the semiconductor business. Everything changed in 1957, after eight of his engineers—whom he called the "Traitorous Eight"—left his company to start their own. Their company, named Fairchild Semiconductor, employed many future founders of major Silicon Valley companies. Today, the Traitorous Eight are considered among the founders of Silicon Valley.

One office park had an outsized role in the birth of Silicon Valley

Developed in 1951, Stanford Research Park was more than just a pioneering suburban office park. It would go on to catalyze Silicon Valley's tech ecosystem as a whole.

See a ranking of the world's most valuable brands

Evaluating a brand's value involves evaluating investments in marketing, the strength of the brand, and even the company's performance. Technology companies represent most of the global economy's brand value. As of 2026, Apple has the most valuable brand in the world at $608B.

Stanford and Harvard are among the universities producing the most startup founders

Not all startup founders are created equal. This data visualization of the universities that produce the most startup founders is based on the number of alumni who have raised venture capital funding for their companies. That means these alums had to do much more than put "entrepreneur" in their LinkedIn bio to be considered startup founders.

Coined in 1971, the man credited with naming Silicon Valley was originally writing about semiconductors

Silicon Valley gained its name from an article published in January 1971, in Electronic News. Author Don Hoefler used the term in his headline for an article he was writing about the semiconductor industry. Hoefler is credited with naming the multi-trillion dollar area that is still called Silicon Valley today.

See an analysis of the similarities between the characters in 'Silicon Valley' and the real people who inspired them

The HBO show "Silicon Valley" follows the story of an engineer who is trying to get his startup to take off in Silicon Valley. While one tech CEO said the show is like a documentary, many speculate the show is based on real life tech figures like Mark Zuckerberg and Peter Thiel.

In 2018, Apple became the world's first publicly traded trillion-dollar company

The valuation was made possible by Steve Jobs' return to the company in 1997, who implemented a simplification strategy by cutting the majority of Apple's existing product line. His promotion of Jony Ive to SVP of industrial design would help popularize Apple through colorful products and marketing.

Before Silicon Valley, the American innovation hub was New Jersey

Today, Silicon Valley is known for its dominance in the tech world. But before it rose to prominence, New Jersey was the country's innovation hub. From Thomas Edison's light bulb to the transistor, New Jersey was considered the nation's leader in technology.

In 2023, venture capital firms invested $170B in over 15,000 US companies

That's a significant drop from 2022’s $242B, reflecting market uncertainty but continuing VC’s role in scaling transformative ideas. Rooted in early risk-sharing models, venture capital took off with firms like ARDC in 1946, later evolving into today’s influential players like Sequoia Capital and Andreessen Horowitz.

The Nasdaq's 'Magnificent 7' have an outsized impact on the Nasdaq 100's performance

These seven companies are Alphabet, Amazon, Apple, Meta, Microsoft, Nvidia, and Tesla. They're often responsible for over 40% of the Nasdaq 100 index's gains, but the exact percentage varies from year to year.

How a garage became the birthplace of Silicon Valley

Bill Hewlett and Dave Packard are well known for founding the company Hewlett-Packard. But before their success, Hewlett and Packard sat in a garage and created their first product together. Today, that garage is deemed the "birthplace of Silicon Valley" and is marked as a historical site.

Over 400 tech companies call Santa Barbara home

The city boasts a strong talent pipeline from UCSB, established tech companies like Sonos and Procore and dozens of startups. Search for any company in Santa Barbara with this regularly-updated directory.

See Bloomberg's continuously updated Billionaire Index

This ranking, updated daily, shows a running tally of the world's 500 richest people. Tesla and SpaceX CEO Elon Musk has largely been atop the list, with a net worth of around $723B as of June 2026. Values fluctuate significantly as much of the wealth is tied to equity in companies. (Some users may experience a paywall.)

Silicon Valley’s reign over tech, money, and politics

Tesla and X CEO Elon Musk, OpenAI CEO Sam Altman, LinkedIn founder Reid Hoffman, and others are getting into politics. From Musk’s role in President Trump’s second term to Hoffman’s spending on former Vice President Harris’ presidential campaign, more tech CEOs are expanding into politics. This podcast episode by WBUR and American Public Media discusses what the impact could be with so many tech figures engaging in American politics. Listen here.

Bill Hewlett and Dave Packard are known for creating the 'founding' Silicon Valley company Hewlett-Packard

During the company's early years, Hewlett and Packard established a management approach called "the HP Way." The approach, which was considered radical at the time, helped shape the way Silicon Valley is run today.

In late 2025, the top 10 companies in the S&P 500 made up more than 40% of the index's total value

This raised concerns for investors about the index's risk exposure. As many large tech companies continued posting record highs, analysts argued that the top-heavy index was becoming less representative of the economy as a whole.

The Forbes Midas List is an annual ranking of the world's top 100 venture capitalists

To qualify, investors are ranked by portfolio companies that have gone public or been acquired for at least $200M in the past five years, or that have at least doubled their private valuation to $400M or more over the same period.

Burning Man has become a playground for Silicon Valley's tech workers, sometimes influencing the work culture of the country's biggest companies.

The 50-100-500 rule: when a startup is no longer a startup

According to startup expert Alex Wilhelm, a company cannot be considered a startup if it generates revenue exceeding $50M, employs more than 100 people, and has a valuation of $500M or more. However, Wilhelm modified the rule in 2018 to $100M in revenue, over 500 employees, and a valuation of $2.5B or more.

How TSMC, the world's biggest chip manufacturer, makes money

Taiwan Semiconductor Manufacturing Company has more than 500 clients across the world, but none are bigger or more consequential to its business than Apple. The iPhone maker accounts for 25% of TSMC's total revenue. TSMC controls more than 60% of the global market share in semiconductor manufacturing. Dive into the economics and outlook of this important company here.

Explaining the collapse of Silicon Valley Bank

In March 2023, Silicon Valley Bank—the nation's 16th largest bank at the time—collapsed after a rapid run on its deposits. Among other factors, the bank had placed more than half of its investments into long-term bonds, leaving it without the necessary cash on hand as its clients, largely start ups, panicked and withdrew their money at the same time. This visualization lays out the timeline and impact of the collapse.

Shenzhen, China is known as the 'Silicon Valley of Hardware'

The "Silicon Valley of Hardware" is a major manufacturing hub. This WIRED documentary from 2016 does a deep dive into how this Chinese city's practice of copycat manufacturing alongside its innovative culture has made it China's own Silicon Valley.

Walmart was the first traditional retailer to crack the $1T club

In early 2026, the company joined major tech companies Nvidia, Apple, and Meta (among others) as one of the rare firms with a market capitalization beyond $1T. See the latest top companies here.

See the 25 largest initial public offerings in US history.

These 25 companies—which include UPS, Uber Technologies, AT&T, and The Kraft Heinz Co.—had some of the biggest IPO drops in US history. However, not all these drops led to long-term (or even immediate) success.

Meet Frederick Terman: Stanford University professor and the 'Father of Silicon Valley'

Stanford University professor Frederick Terman used to encourage his students to start their own tech companies. His advice led to the creation of Hewlett-Packard. He also established the Stanford Research Park, which helped develop many successful tech companies today. Terman is often called the "Father of Silicon Valley," because his ideology directly shaped the region's development.

More than 650 companies went public in the US in 1996

As the dot-com bubble reached its peak, most dot-com companies went public with little proof of being profitable and were often overvalued. In 1999, the Nasdaq's price-to-earnings ratio (a tool used to determine a stock's value that divides its price by earnings) hit 90.2, signaling that many companies were operating at a net loss. Startups promised investors that more time and money would help scale their businesses and become profitable.

Visualize the world's top 20 billionaires in 2026

This data visualization shows the 20 wealthiest people in the world as of January 2026. Topping the list with a net worth of more than $713B is Elon Musk, trailed by Larry Page ($258B), Jeff Bezos ($251B), and Larry Ellison ($243B).

Global investing in startups hit a record $297B in Q1 2026

The level of startup funding around the world broke all previous records in Q1 2026 by a significant margin: Only $118B was raised in the previous quarter, and Q1's haul outpaced every full year of global VC activity before 2019. The increase was partly due to the enormous funding rounds from AI companies such as OpenAI and Anthropic.

OpenAI CEO Sam Altman has called OpenAI 'the most capital-intensive startup in history'

As of 2024, Silicon Valley was set to spend $1T in the coming years building AI. As companies, including Google and Microsoft, fling billions at AI dreams, concerns are rising about whether that money will ever be recouped. To learn about the argument that there is an AI bubble—and that it could soon burst if AI doesn't prove its worth—read this article.

See the top 100 ETFs by trading volume

This list grabs the top 100 by trading volume, or the average number of shares that have traded hands over a 3-month period. Top of the list is a semiconductor-focused fund from Direxion, followed by other tech-centric offerings.

80% of a VC firm's returns come from 20% of the deals, per VC's 'power law'

Early-stage startups are highly risky investments. Many companies in a VC portfolio will not provide any significant return.

How to visualize the enormous wealth of Elon Musk

The disruptive innovator and founder of SpaceX and Tesla is worth hundreds of billions of dollars, an unimaginable sum. This simple interactive visual uses pixels (representing $1K each) on a scrolling screen to demonstrate the billionaire's wealth compared to other known financial values, like the cost of building a Boeing 777 or the net worth of Tiger Woods.

Many dot-com companies spent some investor money on expensive parties

Parties hosted by dot-com companies were known to be extravagant and expensive. Technology companies in the Bay Area hosted between 15 and 20 parties a week on average, which cost between $30K and $50K on average.

A 'unicorn' is a private company with a $1B-plus valuation

Just like a horse with a spiraling horn on its head, private companies with a more than $1B valuation are rare creatures. But unlike the mythical creature, this type of “unicorn” is occasionally spotted in the wild. Unicorn companies include SpaceX, OpenAI, Skims, and more.

'Startups' can be defined as small, early-stage companies that are designed to grow fast.

Who are America's highest-paid CEOs?

As of 2024, Apple's Tim Cook, Starbucks' Brian Niccol, and Microsoft's Satya Nadella were among America's highest-paid CEOs, each making tens of millions of dollars per year.

View a list of companies owned by Google's parent company, Alphabet

These companies include Google subsidiaries like YouTube, the biggest online video sharing and streaming platform, Nest, which manufactures smart products like speakers and thermostats, and Waymo, the technology company developing self-driving cars.

See a web of circular investments among major AI industry players like Nvidia and OpenAI, as many top AI companies provide significant investments to one another.