Meet Masayoshi Son, the billionaire founder of SoftBank and one of the richest men in Japan, who has a $16.3 billion fortune and owns a $117.5 million Silicon Valley estate

masayoshi sonTomohiro Ohsumi/Getty Images

Masayoshi Son, the founder and CEO of Japanese holding company SoftBank, is worth an estimated $16.3 billion, according to Bloomberg's Billionaires Index.

That makes him the second-richest person in Japan after Uniqlo founder Tadashi Yanai.

Through SoftBank and his $100 billion Vision Fund, Son invests millions in some of Silicon Valley's biggest tech companies, including Uber, WeWork, Slack, and DoorDash.

Here's a look at Son's life, career, investments, and real-estate portfolio.

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Masayoshi Son is the billionaire founder and CEO of Japanese holding company SoftBank.

Masayoshi Son is the billionaire founder and CEO of Japanese holding company SoftBank.

SoftBank owns stakes in more than 1,000 companies, including Alibaba and Yahoo Japan, according to Bloomberg.

In 2018, the company reported revenue of $82.7 billion.

Son is worth an estimated $16.3 billion, according to Bloomberg's Billionaires Index.

Son is worth an estimated $16.3 billion, according to Bloomberg's Billionaires Index.

That makes him the second-richest person in Japan after Uniqlo founder Tadashi Yanai, who's worth an estimated $29.6 billion.

Most of the 61-year-old CEO's wealth comes from his 26% stake in the company, which makes him the largest shareholder, according to Bloomberg.

Son was born in 1957 to Korean immigrants on the Japanese island of Kyushu.

Son was born in 1957 to Korean immigrants on the Japanese island of Kyushu.

He was one of four brothers, and his father worked at restaurants, farms, and fisheries.

In 1972, when he was 16, Son met one of his idols: McDonald's Japan founder Den Fujita, who encouraged him to go study in the United States.

In 1972, when he was 16, Son met one of his idols: McDonald's Japan founder Den Fujita, who encouraged him to go study in the United States.

Son took his advice and moved to San Francisco the next year to continue high school.

Son went on to study computer science and economics at the University of California at Berkeley.

Son went on to study computer science and economics at the University of California at Berkeley.

Before he was 21 years old, Son sold his first company, a multilingual translator bought by Sharp for about $1 million.

In the 1980s, Son founded SoftBank, a company that today pours billions of dollars of capital into tech startups, including through its $100 billion Vision Fund.

In the 1980s, Son founded SoftBank, a company that today pours billions of dollars of capital into tech startups, including through its $100 billion Vision Fund.

Through its Vision Fund, SoftBank has invested in major companies like Uber, WeWork, food-delivery startup DoorDash, and Indian e-commerce retailer Flipkart.

Son's investment strategies are considered unconventional in Silicon Valley.

Son's investment strategies are considered unconventional in Silicon Valley.

The size of Son's $100 billion Vision Fund and its investment strategies have shocked Silicon Valley investors, according to Bloomberg.

"The standard VC playbook involves making small, speculative investments in early-stage startups and adding funds in follow-on rounds as those startups grow," Sarah McBride, Selina Wing, and Peter Elstrom wrote for Bloomberg. "SoftBank's strategy has been to put enormous sums — its smallest deals are $100 million or so, its biggest are in the billions — into the most successful tech startups in a given category."

Fast Company's Katrina Booker called Son "the most powerful person in Silicon Valley" for his ambitious vision — and financial means — to transform industries from real estate to food to transportation through his investments in artificial intelligence and machine learning.

Like the rest of Silicon Valley, Son may soon have to reckon with the presence of Saudi Arabia in the US tech world.

Like the rest of Silicon Valley, Son may soon have to reckon with the presence of Saudi Arabia in the US tech world.

"Saudi Arabia's presence in Silicon Valley is greater than it's ever been," Alexei Oreskovic recently reported for Business Insider.

The SoftBank CEO has direct ties to Saudi Arabia, which has been embroiled in human rights scandals and blamed for the killing of journalist Jamal Khashoggi.

Saudi Arabia's Public Investment Fund is the SoftBank Vision Fund's largest backer, having contributed $45 billion of the fund's $100 billion bankroll.

The SoftBank CEO is known for paying his executives handsomely.

The SoftBank CEO is known for paying his executives handsomely.

Six of SoftBanks' top executives made $83 million combined (9.1 billion yen) in compensation last year, while Son's salary rose to about $2.1 million (229 million yen), according to Bloomberg.

"The range of executive salaries in Japan has gone up, but compensation in the billions of yen is still unheard of beyond a handful of global companies," Noriko Watanabe, a partner at Heidrick & Struggles, an executive search company, told Bloomberg.

But Son may not be taking home any of his salary. In 2011, he pledged to donate $119 million to support victims of the 9.1 magnitude earthquake that hit Japan that March — as well as "the whole of his remuneration" as head of SoftBank until his retirement.

Son owns millions of dollars worth of property in Tokyo, where SoftBank is headquartered.

Son owns millions of dollars worth of property in Tokyo, where SoftBank is headquartered.

The SoftBank CEO owns about $45 million worth of residential property in Tokyo, according to Bloomberg. And in 2013, he spent $326 million on Tokyo's landmark Tiffany Building in the Ginza luxury shopping district.

He also owns a $117.5 million Silicon Valley estate that comes with a 9,000-square-foot house, a 1,117-square-foot pool house, a detached library, a swimming pool, a tennis court, and formal gardens.

He also owns a $117.5 million Silicon Valley estate that comes with a 9,000-square-foot house, a 1,117-square-foot pool house, a detached library, a swimming pool, a tennis court, and formal gardens.

Son bought the Woodside, California, property in 2012 from private equity investor Tully Friedman, according to Forbes.

Son is married with two children but keeps his family life private.

Son is married with two children but keeps his family life private.

The CEO married Masami Ohno, the daughter of a prominent Japanese doctor, while they were both students at UC Berkeley, The Seoul Times reported. The couple reportedly has two daughters together, but little information about the family can be found online.

Son's younger brother, Taizo Son, is also a billionaire.

Son's younger brother, Taizo Son, is also a billionaire.

Taizo Son is an entrepreneur who has founded companies including GungHo Online Entertainment and Movida Japan. He's worth an estimated $1.2 billion, according to Forbes.

The SoftBank CEO reportedly has personal relationships with billionaire CEOs and entrepreneurs such as Bill Gates, Larry Ellison, Rupert Murdoch, and Tadashi Yanai.

The SoftBank CEO reportedly has personal relationships with billionaire CEOs and entrepreneurs such as Bill Gates, Larry Ellison, Rupert Murdoch, and Tadashi Yanai.

Son has visited Ellison's Silicon Valley home, where he met Steve Jobs.

Son reportedly has a close relationship with WeWork's cofounder and CEO, Adam Neumann.

Son reportedly has a close relationship with WeWork's cofounder and CEO, Adam Neumann.

Neumann told Business Insider in a recent interview that he and his wife, Rebekah, call Son "Yoda," in reference to the "Star Wars" character.

"He is Yoda," Neumann said. "He has the Force with him."

The SoftBank CEO has also publicly met with President Donald Trump on a few separate occasions, including at Trump Tower in New York a month after Trump was elected.

The SoftBank CEO has also publicly met with President Donald Trump on a few separate occasions, including at Trump Tower in New York a month after Trump was elected.

At a June 2018 groundbreaking ceremony in Wisconsin for a new manufacturing facility for Foxconn, Trump praised SoftBank for increasing its investments in US companies.

In May 2019, SoftBank announced the creation of a second $100 billion Vision Fund, after having already spent more than half of the first one.

In May 2019, SoftBank announced the creation of a second $100 billion Vision Fund, after having already spent more than half of the first one.

"Various investors from around the world are telling us they definitely want to participate in Vision Fund 2. We will set it up soon," Son said at the beginning of May, according to The Wall Street Journal.

The Journal later reported that Son has been having trouble raising money for this new fund, a claim SoftBank disputes, as Business Insider's Paige Leskin reported.

"While we don't comment on fundraising, much of The Wall Street Journal's reporting on investor sentiment is misleading and even inaccurate," a SoftBank spokesperson told Business Insider in an email.

Despite paying his executives billions and donating his salary to earthquake victims, Son continues to grow richer.

Despite paying his executives billions and donating his salary to earthquake victims, Son continues to grow richer.

In August 2012, Son had a net worth of $9.79 billion. Seven years later, he's more than $6.5 billion wealthier.

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