Ethan Thornton dropped out of MIT at 19 to build weapons. The first one, a hydrogen-powered system he prototyped with parts from Home Depot and Amazon, didn’t work out — “hydrogen was just a bad bet in general,” he told me this past week at TechCrunch’s StrictlyVC event in Los Angeles. Three years later, his company, Mach Industries, is running six weapons programs and earlier this month closed a $300 million Series C round at a $1.8 billion valuation. The startup has now raised roughly $485 million altogether.
Thornton grew up in Burnet, Texas, a town with roughly 6,500 residents, in a family with deep military ties. Around 2017 or 2018 — when he was still in his early teens — he started becoming, by his own account, “really, really concerned” about the rise of China and what he saw as an impending great-power conflict. That concern eventually sharpened into a conviction that unmanned systems were about to redefine warfare, and that the U.S. was moving too slowly to meet the moment.