The $100M Mushroom Founder: You Can Do What You Love and Build a Billion Dollar Empire

In this episode, I sit down with Tero Isokauppila, the $100M CEO and founder of Four Sigmatic, as he reveals why he’s starting over from scratch to build a billion-dollar biotech startup. We dive into his new company, HIRO — a plastic-eating mushroom innovation that could reshape the future of waste. Tero shares how he balances running a nine-figure business while launching a zero-to-one venture, why he’s raising millions in funding, and what it really takes to go from $100M to billions. You’ll hear the unfiltered realities of scaling, raising capital, leading a mission-driven company, and how to play the long game in entrepreneurship. Whether you’re a founder, investor, or just fascinated by game-changing innovations, this conversation will show you what it looks like when a $100M CEO bets big on the next billion.

Check out HIRO at: https://hirodiapers.com

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