The 28 youngest billionaires in tech, from Stripe's founders to the owner of TikTok

Age: 39 Net worth: $1.6 billion What he does: Tobi Lutke is the founder and CEO of ecommerce technology company Shopify. Age: 39 Net worth: $1.4 billion What he does: Peter Szulczewski is the cofounder and CEO of ecommerce platform Wish.Age: 38 Net worth: $1 billion What he does: Sachin Bansal is cofounder of Flipkart, India's biggest ecommerce site. Age: 38 Net worth: $3.7 billion What he does: Joe Gebbia is cofounder and chief product officer of short-term home rental company Airbnb.Age: 38 Net worth: $3.7 billion What he does: Brian Chesky is cofounder and CEO of short-term home rental company Airbnb.Age: 38 Net worth: $1 billion What he does: Evan Sharp is cofounder and chief creative officer of inspiration and trend discovery site Pinterest.Age: 38 Net worth: $1.6 billion What he does: Ben Silbermann is cofounder and CEO of inspiration and trend discovery site Pinterest.Age: 38 Net worth: $9.7 billion What he does: Eduardo Saverin cofounded Facebook along with Mark Zuckerberg.Age: 37 or 38 Net worth: $2.9 billion What he does: Su Hua is the cofounder and CEO of Kuaishou, a Chinese GIF and video-sharing app. Age: 37 or 38 Net worth: $1 billion What he does: Binny Bansal is cofounder of Flipkart, India's biggest ecommerce site. He was CEO of Flipkart Group until his resignation in November 2018 after allegations of serious personal misconduct.Age: 37 Net worth: $1.2 billion What he does: Cheng Wei is the founder and CEO of Chinese ride-hailing platform Didi Chuxing.Age: 37 Net worth: $1.3 billion What he does: Brian Armstrong is the cofounder and CEO of cryptocurrency trading platform Coinbase.Age: 37 Net worth: $2.2 billion What he does: Daniel Ek is the cofounder and CEO of music-streaming company Spotify. Age: 37 Net worth: $2.3 billion What he does: Drew Houston is the cofounder and CEO of file-sharing service Dropbox.Age: 37 Net worth: $1.6 billion What he does: Ryan Graves was the first full-time employee and first CEO of Uber. He's currently the CEO of investment firm Saltwater Capital. Age: 37 Net worth: $3.7 billion What he does: Nathan Blecharczyk is the cofounder and chief strategy officer at short-term home rental company Airbnb.Age: 36 Net worth: $16.2 billion What he does: Zhang Yiming is the chairman of ByteDance, a Chinese content company behind the short-form video app TikTok. Age: 36 Net worth: $1.7 billion What he does: Bill Liu is the CEO and chairman of Royole, which makes flexible displays and sensors that are used in devices like foldable phones.Age: 36 Net worth: $1.4 billion What he does: Kevin Systrom is the cofounder and former CEO of photo-sharing app Instagram, which was acquired by Facebook in 2012.Age: 35 Net worth: $62.3 billion What he does: Mark Zuckerberg is the cofounder and CEO of social networking company Facebook.Age: 35 Net worth: $11.1 billion What he does: Dustin Moskovitz cofounded Facebook along with Mark Zuckerberg. He left Facebook to cofound the workplace management company Asana, where he is CEO. Age: 35 Net worth: $2.7 billion What he does: Pavel Durov is the founder of messaging app Telegram. He also created VK, the biggest social networking app in Russia. Age: 34 Net worth: $2.2 billion What he does: Chris Wanstrath is the cofounder and former CEO of GitHub, a social network for software developers that was acquired by Microsoft.Age: 34 Net worth: $1.5 billion What he does: Jihan Wu is the cofounder and chairman of Bitmain Technologies, the largest cryptocurrency mining company in China. Age: 31 Net worth: $2.1 billion What he does: Bobby Murphy is cofounder and chief technology officer of Snap, the social media and camera company that makes Snapchat. Age: 31 Net worth: $2.1 billion What he does: Patrick Collison — along with his brother, John — founded payments company Stripe. He currently serves as the company's CEO.Age: 29 Net worth: $2.1 billion What he does: Evan Spiegel is cofounder and CEO of Snap, the social media and camera company that makes Snapchat. Age: 29 Net worth: $2.1 billion What he does: John Collison — along with his brother, Patrick — founded payments company Stripe. He currently serves as the company's president.