ElevenLabs’ computer voices are so convincing they could fool your mother. That’s both a blessing—its 30 Under 30 alumni founders are now both billionaires—and a curse for the four-year-old company.

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One year ago, the FBI raided Polymarket founder Shayne Coplan’s apartment. Now, the college dropout is a billionaire at age 27.

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Crypto took the real estate heir’s fortune and supersized it, briefly making the president’s second-oldest son a billionaire in early September.

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Here are the 46 Under 30s who turned their startups into billion-dollar fortunes—Sam Altman, Alexandr Wang, Taylor Swift and more.

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Kalshi is now worth $11 billion, making both its founders billionaires and Luana Lopes Lara the world’s youngest self-made woman billionaire.

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A look behind the statistics of the 2026 Under 30 List—from $3.8 billion in funding to 200 million fans online.

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There’s a new No. 2 on Forbes’ ranking of the world’s wealthiest people.

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Founded by former Thiel fellows, AI language tutoring app Speak started its journey in Seoul, South Korea. But as it enters the U.S. market, it’ll have to compete with better-known rivals like Duolingo.

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It took more than fame for Donald Trump and his sons to build a crypto empire. They got a lot of help from industry insiders, many of whom happened to need a hand from the president.

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On the brink of insolvency five years ago, the team is now dominating on the Formula 1 track—and, under the leadership of CEO Zak Brown, building up its sponsorships to rival Ferrari and Mercedes.

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