In recent years, there's been an emergence of charitable donations coming out of Silicon Valley. Looking at the Chronicle of Philanthropy's top 50 philanthropists list for 2017 , 60% of the people on the list are from the technology industry.
A recent analysis from UK price comparison website Compare the Market found which billionaires have donated the largest percentage of their net worths. There's only one billionaire who currently donates more than half of his wealth to charity: businessman Warren Buffett, the third richest man in the world.
These figures are based on publicly available information, so any private donations are not included in the calculated numbers. The billionaires' net worths are based on Forbes' 2018 list of the wealthiest people in the world.
Here are the 13 most charitable billionaires in tech, based on percentage of their wealth they donate:
13. Steve Ballmer 0.32%
2018 net worth: $38.4 billion
Amount donated: $121 million
How he made his billions: Ballmer is a former CEO at Microsoft who joined the company early on as its 30th employee .
Donations made: Ballmer and his wife run the Ballmer Group , a charity that focuses on "efforts to improve economic mobility for children and families in the United States who are disproportionately likely to remain in poverty." The Ballmers' foundation has pledged millions to Harvard University, the University of Washington, and the University of Oregon.
12. Jack Ma 0.33%
2018 net worth: $39 billion
Amount donated: $129.4 million
How he made his billions: Ma is the cofounder and executive chairman of Alibaba Group, one of the largest e-commerce companies in the world. With Ma at the helm, Alibaba had one of the biggest IPOs ever when it went public in 2014. Ma and Alibaba have invested billions in tech companies.
Donations made: When Ma announced he would be retiring from his role as Alibaba's executive chairman, he said it was so he could dedicate more time and money to his philanthropy, the Jack Ma Foundation. The charity was founded in 2014 and focuses its efforts on improving China's education system, especially in rural areas. The company pledged $45 million in 2017 to "help discover and cultivate future teaching talent in the rural regions of China."
11. Masayoshi Son 0.53%
Koki Nagahama/Getty Images
2018 net worth: $22.7 billion
Amount donated: $120 million
How he made his billions: Son is the founder and CEO of SoftBank, a huge Japanese investment firm that's put billions into tech startups like the We Company, Slack, and Uber.
10. Laurene Powell Jobs 0.8%
Steve Jennings/Getty Images
2018 net worth: $18.8 billion
Amount donated: $150 million
How she made her billions: Powell Jobs inherited billions of dollars worth of stakes in Apple and Disney from her late husband, Apple cofounder Steve Jobs, when he died in 2011. She founded a social impact firm called Emerson Collective in 2004, and bought a majority share in The Atlantic in 2017.
Donations made: Powell Jobs founded a nonprofit called College Track that helps prepare low-income students for college through tutoring and mentoring. Through Emerson Collective, Powell Jobs pledged $50 million to fund XQ: The Super School Project, an educational reform venture trying to revamp high school curricula . She also serves on the boards for nonprofits like Teach for America and Conservation International.
9. Jeff Bezos 1.9%
2018 net worth: $112 billion
Amount donated: $2.14 billion
Donations made: Bezos announced in September 2018 that he was launching the Bezos Day One Fund, a $2 billion initiative to support homeless families and build "full-scholarship, Montessori-inspired preschools."
8. Larry Ellison 2.1%
Kimberly White/Getty Images
2018 net worth: $58.5 billion
Amount donated: $1.20 billion
7. Mark Zuckerberg 2.4%
2018 net worth: $71 billion
Amount donated: $1.72 billion
How he made his billions: Zuckerberg is the cofounder and CEO of Facebook.
Zuckerberg and Chan were some of the first to sign the "Giving Pledge" back in 2010 .
6. Larry Page 3.1%
2018 net worth: $48.8 billion
Amount donated: $1.50 billion
How he made his billions: Page cofounded Google with Sergey Brin in 1998, and now serves as CEO of Alphabet, Google's parent company.
5. Ma Huateng (Pony Ma) 4.4%
2018 net worth: $45.3 billion
Amount donated: $2.01 billion
How he made his billions: Ma is the founder and CEO of Tencent, the most valuable company in Asia. Tencent's subsidiaries include the messaging platforms WeChat and QQ, as well as several successful video game brands.
Donations made: Ma donated 100 million of his personal shares of Tencent worth more than $2 billion to the Ma Huateng Global Foundation to support "medical, educational, and environmental causes in China," Reuters reported .
4. Sergey Brin 4.6%
2018 net worth: $47.5 billion
Amount donated: $2.20 billion
How he made his billions: Brin cofounded Google with Larry Page, and now serves as president of Alphabet.
3. Carlos Slim 6.0%
2018 net worth: $67.1 billion
Amount donated: $4 billion
Donations made: Slim has donated $4 billion to his eponymous philanthropy organization, the Carlos Slim Foundation.
2. Michael Dell 8.9%
2018 net worth: $22.7 billion
Amount donated: $2.02 billion
How he made his billions: Dell is the chairman and CEO of Dell Technologies. He also runs the investment firm MSD Capital.
1. Bill Gates 45.6%
2018 net worth: $90 billion
Amount donated: $41 billion
How he made his billions: Gates cofounded Microsoft and was once the company's largest shareholder.
SEE ALSO: Chaos has reportedly erupted inside Facebook as employees find themselves unable to open the company's apps on their iPhones