Three 22-year-old entrepreneurs, Brendan Foody, Indian-American Adarsh Hiremath, and Surya Midha, have become the world’s youngest self-made billionaires after founding the AI startup Mercor. They have replaced Mark Zuckerberg, who became a billionaire at 23 in 2008. Their success marks a major moment in the fast-growing world of artificial intelligence (AI) startups.

The founders of Mercor now lead the ranks of young tech entrepreneurs who have recently reached billionaire status. All three were featured on the Forbes 2025 under 30 list. Their achievement follows that of Polymarket CEO Shayne Coplan, 27, who entered the billionaire club 20 days after a USD 2 billion investment from NYSE parent Intercontinental Exchange. Elon Musk Teases Tesla Roadster Could Be a Flying Car, Calls Upco

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