Spencer Hewett

Spencer Hewett is the founder and CEO of RADAR, a New York retail-technology company that wires store ceilings with RFID and computer-vision sensors to locate inventory in real time. He dropped out of Washington University in St. Louis to take the Thiel Fellowship in 2012, spent years building and rebuilding the idea, and has since taken RADAR through Old Navy and American Eagle rollouts to a $1 billion valuation on a $170 million Series B closed in May 2026.