Frank Stokes, Founder of Castle Biosciences

Frank Stokes is the founder of Castle Biosciences. Latest round: IPO. Based in Palo Alto, California.

About Frank Stokes

Frank Stokes is the chief financial officer of Castle Biosciences, a diagnostics company that improves health through innovative tests guiding patient care, primarily in dermatologic and gastroenterological disease. Stokes joined Castle Biosciences in December 2017 and helped lead the company through its Nasdaq initial public offering in 2019, as well as its growth through multiple strategic acquisitions. He was named a 2026 CFO Awards honoree by the Houston Business Journal and has twice been recognized as a Top 25 CFO of Houston.

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