The 25 richest people in Silicon Valley

Source of wealth: Dolby Laboratories

Industry: Technology

Net worth: $4.13 billion

Founded by her late husband Ray Dolby, Dagmar Dolby currently owns roughly 38% of Dolby Laboratories. Known for its sound systems, the San Francisco-based company revolutionized audio in tech.

Source of wealth: Nvidia

Industry: Technology

Net worth: $4.63 billion

Jensen Huang is the cofounder, CEO, and president of Nvidia, a company specializing in computer gaming chips. The billion-dollar company is based in Santa Clara, California.

Source of wealth: Franklin Templeton

Industry: Finance & Investments

Net worth: $4.70 billion

Current vice chairman and director of Franklin Templeton, Robert Johnson, Jr. also owns the second largest stake in his family's successful investment firm. The company was founded by his father in 1947; Johnson has served as vice chairman for the past two decades.

Source of wealth: eBay

Industry: Technology

Net worth: $5.24 billion

Though he has not worked at the company in 18 years, Jeffrey Skoll earned the majority of his money as eBay's president in the early 2000s. According to Forbes, Skoll was the online auction site's first full-time hire. Since leaving, Skoll has worked with his self-named foundation, as well as his film production firm. The firm — Participant Media — won the Academy Award for "Spotlight" in 2016.

Source of wealth: Yahoo

Industry: Technology

Net worth: $5.29 billion

David Filo cofounded Yahoo in 1995; Verizon purchased it for almost $4.5 billion in 2017. In addition to heading Yahoo, Filo also runs a charity foundation with his wife, supporting issues from education to the environment.

Source of wealth: Twitter

Industry: Technology

Net worth: $5.29 billion

Tied with Yahoo's David Filo for net worth, Jack Dorsey returned as social giant Twitter's CEO in 2015, after previously stepping down in 2008. He cofounded the company in 2006, and also cofounded Square in 2009.

Source of wealth: KKR & Co.

Industry: Finance & Investments

Net worth: $5.54 billion

Building his fortune in the private equity business, George Roberts cofounded KKR & Co. The firm is named after Roberts and fellow cofounders Henry Kravis and Jerome Kohlberg. Alongside its New York offices, the firm is also based out of San Francisco and Menlo Park — roughly 20 minutes from Facebook's headquarters. Roberts himself resides in Atherton.

Source of wealth: Lucasfilm, Ltd.

Industry: Media & Entertainment

Net worth: $5.61 billion

Legendary filmmaker George Lucas is best known for his original Star Wars and Indiana Jones series. He resides on Skywalker Ranch in Marin County, just north of San Francisco. His self-named film company — which he sold to Disney in 2012 for $4 billion — is based in the city's Letterman Digital Arts Center, unlike most Hollywood directors who maintain offices in Los Angeles.

Source of wealth: Uber

Industry: Technology

Net worth: $5.84 billion

Though he has since stepped down as the CEO following company scandals, Travis Kalanick is known for founding Uber in 2009. Now the CEO of holding company City Storage Systems, Kalanick still owns seven percent of Uber shares.

Source of wealth: Salesforce

Industry: Technology

Net worth: $6.58 million

After working under Oracle founder Larry Ellison, Marc Benioff founded his own company, Salesforce, in 1999. He remains the company's CEO, but has also invested in other tech startups in the Silicon Valley area.

Source of wealth: Sobrato Development Cos.

Industry: Real Estate

Net worth: $6.80 billion

Though John Sobrato didn't start a tech company in Silicon Valley, he made his fortune selling homes in the Palo Alto area. Today, his company owns the office spaces of big names such as Netflix.

Source of wealth: Kleiner Perkins Caufield & Byer

Industry: Technology

Net worth: $7.67 billion

John Doerr is the current chairman of Kleiner Perkins Caufield & Byers (KPCB), a venture capital firm. According to Forbes, "KPCB is one of Silicon Valley's most storied firms, having backed Amazon, AOL, Compaq, Electronic Arts, Google, Netscape and Twitter." Prior to KPCB, Doerr worked at Intel.

Source of wealth: Charles Schwab

Industry: Finance & Investments

Net worth: $8.29 billion

Unlike Silicon Valley's tech execs, Charles Schwab is the former CEO of his self-named brokerage firm headquartered in the Bay Area. Though he stepped down from his lead role in 2008, he still serves as company chairman.

Source of wealth: Ubiquiti Networks, Inc.

Industry: Technology

Net worth: $8.90 billion

After working at Apple for two years, Robert Pera founded the wireless equipment company Ubiquiti Networks in 2005. Today, he serves as the company's CEO and owns 75% of shares.

Source of wealth: WhatsApp, Inc.

Industry: Technology

Net worth: $9.80 billion

Before cofounding WhatsApp messaging service, Jan Koum spent nine years with Yahoo. In 2014, Facebook purchased WhatsApp for $22 billion and Koum joined the social giant's board of directors — a role he gave up in 2018. Koum also served as WhatsApp's CEO before the merger.

Source of wealth: Intel

Industry: Technology

Net worth: $10.84 billion

Cofounder of Intel tech company, Gordon Moore retains his title as Chairman Emeritus. The billion-dollar firm is based in Santa Clara.

Source of wealth: Facebook

Industry: Technology

Net worth: $11.82 billion

Alongside Harvard roommate Mark Zuckerberg, Dustin Moskovitz founded social giant Facebook — he still owns three percent of shares. Since leaving Facebook in 2008, Moskovitz cofounded the Asana software company, which he currently heads as CEO.

Source of wealth: Google

Industry: Technology

Net worth: $13.69 billion

A longtime tech exec, Eric Schmidt has served as Google's CEO, executive chairman, and technical advisor. In addition, he cofounded venture capital firm Innovation Endeavors.

Source of wealth: Apple, Disney

Industry: Philanthropy/NGO

Net worth: $20.08 billion

Laurene Powell Jobs is the founder and current head of the Emerson Collective, a social change organization. She also holds $20 billion dollars in shares of Apple and Disney companies from her late husband — Apple founder Steve Jobs — as well as investments in publications such as The Atlantic, Mother Jones, and ProPublica.

Source of wealth: Tesla Motors

Industry: Automotive

Net worth: $20.87 billion

Elon Musk is the reigning CEO of Tesla Motors, the electric car company he founded in 2003. Musk is also the CEO of $20 billion rocket company SpaceX, which has partnered with NASA.

Source of wealth: Google

Industry: Technology

Net worth: $53.68 billion

Sergey Brin currently serves as president of Google parent company Alphabet. Brin cofounded the search engine with fellow Stanford University student Larry Page in 1998. Today, the company headquarters — known as Googleplex — are stationed in Silicon Valley's Mountain View area.

Source of wealth: Google

Industry: Technology

Net worth: $54.87 billion

Larry Page cofounded Google with Sergey Brin in 1998, and is credited with inventing the search engine's PageRank algorithm. He previously served as Google's first CEO and currently works as CEO of Google's parent company Alphabet, which also oversees Calico healthcare and Nest smart home systems.

Source of wealth: Oracle

Industry: Technology

Net worth: $65.22 billion

Larry Ellison is known for cofounding Oracle software company in 1977, where he served as the firm's CEO until 2014. Alongside the majority shares of Oracle, Ellison also owns a significant stake in Elon Musk's Tesla and the Hawaiian Island Lanai.

Source of wealth: Facebook

Industry: Technology

Net worth: $66.31 billion

Known for founding social media giant Facebook in his Harvard dorm room, Mark Zuckerberg moved the company to Palo Alto in 2004. Today, Zuckerberg continues to face criticism for his site's ongoing issues with fake news and user privacy.