Mark Harris is Chairman of Knowable, one of its co-founders, and the former CEO. He is also one of the co-founders of Axiom and served as its Executive Chairman from 2017-2019 and CEO from 2000-2016. Prior to founding Axiom, Mark practiced law at Davis Polk & Wardwell and clerked at the U.S. Court of Appeals, Ninth Circuit. Mark is a University of Texas undergraduate and law school alumnus.