Steijn Pelle is the co-founder and CEO of Lassie, a San Francisco AI company building an autonomous back-office worker that runs the financial admin of independent businesses, starting with dental and medical practices. A Dutch transplant to Silicon Valley with roughly 15 years in startups, he cut his teeth on consumer growth at HealthTap, Coinbase and Robinhood before founding Lassie in 2021. In June 2026 the company raised a $35M Series A led by Andreessen Horowitz, bringing total funding to $47M, while operating in more than 700 practices across 49 states.
Sean Mehra is the co-founder and CEO of HealthTap, a Sunnyvale-based virtual-first primary and urgent care platform serving millions of Americans across all 50 states. A Yale biomedical engineering graduate and Stanford MBA, Mehra pivoted from aspiring physician to serial tech entrepreneur—building games companies with hundreds of thousands of simultaneous players before co-founding HealthTap during his first year at Stanford business school. Under his leadership as CEO (appointed June 2021), HealthTap has grown to serve over 350 million consumers, partnered with Samsung Health to embed virtual care in millions of Android devices, and launched Dr.A.I., an LLM-powered pre-visit interview system. Mehra also co-founded what is now Yale's TSAI City entrepreneurship incubator.