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

Silicon Valley, the 1,800-square-mile hub of tech innovation, reached more than $14T in market value in 2024. Home to industry giants like Apple and Adobe, its influence is undeniable. But rising costs and corporate relocations raise questions about its future.

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.

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.

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

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.

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.

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.

Burning Man’s countercultural messages have influenced Silicon Valley’s work culture

Burning Man is famous for attracting tech leaders like the CEOs of Tesla, Meta, and Google. Some experts believe the festival's ethos and principles of participation, communal effort and radical inclusion have given rise to Silicon Valley's communal work culture.

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.

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

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.

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 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.

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.

The dot-com bubble burst in the early 2000s

If you’ve heard of companies like Google and Yahoo, you’re already partially familiar with the dot-com bubble: a period from roughly 1995 to 2001, when internet companies were the hottest thing in venture capital. The “bubble” part of the term refers to the industry’s eventual implosion.

Theranos and Pets.com are among some of the biggest startup failures ever

You might have heard of Theranos, Elizabeth Holmes’s one-time blood testing company that landed the founder in prison for more than a decade after she was charged with fraud. The rest of the startups on a list of five of the biggest startup failures ever might not be as famous as Theranos, but they were met with similarly disastrous fates.

Y Combinator tends to outperform many other Silicon Valley startup accelerators

In a podcast episode, Garry Tan—CEO of startup accelerator Y Combinator—speaks about how YC has a better track record than the rest of Silicon Valley at placing bets on startups. Learn how Tan earned his first million dollars, as well as lessons from other successful businesspeople, including Y Combinator’s Paul Graham.

Take a tour of Google's headquarters

With its vibrant and cutting-edge design, the so-called "Googleplex" is synonymous with Silicon Valley and surrounds employees with lush green space and unique artwork. Amenities include massage therapy, a medical clinic, and nap pods to inspire creativity.

Venture capital is a form of funding provided to early-stage companies with high growth potential, typically in exchange for an equity (or ownership) stake

The Nasdaq 100 index tracks the exchange's 100 largest non-financial companies

This index was created in 1985, over a decade after the Nasdaq first launched. The companies on the index must meet certain criteria, including having a minimum average daily trading value of $5M.

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company, including its unprofitability despite doing $18.7B in revenue in 2025, exactly how many voting shares Elon Musk will have in the company (roughly 85%), and more.

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

Warren Buffett's former professor Benjamin Graham is known as the 'father of value investing,' a strategy in which investors seek to buy stocks trading below their intrinsic worth.

Explore a list of the 100 best novels of all time, compiled by some of the world's best living writers, including Salman Rushdie, Stephen King, and Jennifer Egan.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

How Amazon operates a 'flywheel' business model, a self-reinforcing cycle that drives continuous growth

Most of the observable universe's volume consists of voids and supervoids—enormous regions of space with little to no galaxies, stars, or light.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

As of 2025, the most cited papers in science include a review of graphene, methods to improve image recognition, streamlining electron density calculations, and optimizing protein studies.

See how Budweiser's famous Clydesdales spend their days at Warm Springs Ranch, where roughly 70 to 80 of the beer brand's giant horses can be found at any given time.

In 2019, a laptop loaded with six of the worst malware in history and described as 'an exhibit of historical weaponry' sold for $1.3M.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

US consumers collectively owe more than $1T to credit card companies—almost as much as they owe in auto loans.

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

Fast-casual restaurant Chili's is experiencing a resurgence, with its parent company recently reporting a nearly 32% increase in sales, thanks to passionate Gen Z fans on TikTok.

See 33 images that became central to huge scandals, including a young Charles and Camilla, Michael Jackson's baby on a hotel balcony, and Hugh Grant's mugshot.

The use of fungi to detoxify land and water—a process known as mycoremediation—has been used to clean up natural resources affected by the 2025 California wildfires.

Massive 3D printers have been used to build homes by stacking layers of 'concrete toothpaste,' a fire-resistant material that effectively insulates against outside noise.

Waves off the coast of Nazaré, Portugal, can reach over 100 feet and are caused by the area's deep underwater canyon geography

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.

The syncytiotrophoblast is the outer layer of the placenta and the largest human cell, spanning an area about twice that of a king-sized bedsheet.