Finnish entrepreneur. BS Computer Science, MS Computer Engineering & Telecom, eMBA International Business — all before 30. Spent 14 years in mobile/telecom before pivoting to health. Co-founded Oura 2013 in Oulu, Finland with Kari Kivela and Markku Koskela. CEO 2014-2018. Oura Ring pioneered the smart ring category. Current CEO Tom Hale. Series E: $900M (Oct 2025, Fidelity). Valuation: ~$11B. Expected $1.5-2B revenue 2026. 2.5M+ rings sold. Successfully sued Ultrahuman and RingConn for patent infringement (US import ban). Apple home hardware VP Brian Lynch left for Oura (Mar 2026).