Will Ahmed grew up on Long Island and captained Harvard's men's squash team. He overtrained, got fitter, then fell off a cliff without knowing why. That led him to start WHOOP in 2012.
He raised about $300,000 from family and friends and about $700,000 from angels. The $500 first strap sold slowly over 18 months. Many investors urged him to drop hardware, and he kept it.
WHOOP raised about $100 million at $1.2 billion in October 2020 and $200 million at $3.6 billion in August 2021. It launched Whoop Coach with OpenAI in September 2023.
On 31 March 2026 it raised a $575 million Series G at $10.1 billion. The company reported a $1.1 billion bookings run-rate exiting 2025 and 2.5 million members.