Mark Jacobstein

Mark Jacobstein is a technology executive, angel investor, and startup advisor based in the San Francisco Bay Area with over 25 years of experience. He previously served as the Chief Business Officer at Guardant Health, helping scale the precision oncology company through its initial public offering. Before entering the healthcare sector, Jacobstein was the Chief Executive Officer of iSkoot, a mobile communications startup he guided to an acquisition by Qualcomm in 2010. His entrepreneurial career began by founding Small World Sports, an online fantasy sports pioneer that reached millions of users before being acquired by The Sporting News. He holds a Bachelor of Arts in Computer Science and Cognitive Science, cum laude, from Harvard University. Jacobstein now leverages his diverse background across mobile technology, digital health, and consumer internet to strategically advise early-stage ventures.