Martin Mignot, the first investor in Deliveroo, became a millionaire before turning 30. Now, as a partner at Index Ventures—the firm behind early bets on Figma, Scale AI, and Revolut—he exclusively shares with Fortune the two strategies Gen Z can use to build wealth fast: become a founder or get in early at the right startup. He also offers advice to spot the next unicorn.

Back when Deliveroo was a tiny London-based platform, with just a few restaurants in its repertoire, there was one man who believed it’d go on to become the multi-billion-dollar brand it is today: Martin Mignot.

“They had eight employees. They were in three London boroughs. Overall, they had a few 1000 users to date, so it was very, very early,” the 40-year-old investor exclusively tells Fortune. “They didn’t ha

See Full Page