Lucy Guo cofounded the data labeling startup Scale AI, valued at $13.8 billion. She also founded the venture firm Backend Capital and startup incubator HF0.

Guo is now the CEO and founder of Passes, a startup helping creators monetize their audiences. Sign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. Read preview Thanks for signing up! Go to newsletter preferences Thanks for signing up! Access your favorite topics in a personalized feed while you're on the go.

download the app Email address Sign up By clicking “Sign Up”, you accept our Terms of Service and Privacy Policy . You can opt-out at any time by visiting our Preferences page or by clicking "unsubscribe" at the bottom of the email. Advertisement Many tech founders prefer to enjoy their success out of the public eye after building a successful company.

Others dive straight back in to pursue the next big thing. But Lucy Guo, the 29-year-old cofounder of data labeling startup Scale AI blurs the line between the two archetypes. A self-professed "adrenaline junkie," she doesn't shy away from attention.

She's active on social media, where she cultivates her in-your-face persona, partying with the likes of Billie Eilish and Charlie XCX , dancing into the night at music festivals, and skydiving to unwind. Guo has even hosted an entire festival called Lucypalooza to celebrate her birthday and has become notorious for a wild party she threw featuring a lemur and .