Ethan Thornton walked away from MIT at 19 with a conviction that the Pentagon was moving too slowly for the world he saw coming. His first attempt to change that, a hydrogen-powered weapons system cobbled together from Home Depot and Amazon parts, fizzled. Hydrogen, he now says, was “a bad bet.” But the failure hardened his belief that the United States needed a new kind of defense company, one that could move at startup speed in a world of great‑power rivalry.

That company is Mach Industries, the defense startup Thornton founded in his teens and has since turned into a unicorn. Backed by hundreds of millions of dollars in venture capital, Mach is now running six weapons programs at once, an approach that defies the usual Silicon Valley advice to focus on a single product until it works.

Thornton’s urgency is rooted in his upbringing in Burnet, Texas, a small town with deep military ties, and in his early obsession with China’s rise. As a teenager, he became convinced that unmanned systems would redefine warfare and that America was not building them fast enough. For him, the answer was not one perfect product but a portfolio of systems designed to overwhelm an adversary’s planning.

Inside Mach’s hangars and test sites, that philosophy looks like a swarm of parallel bets: a vertical‑takeoff strike aircraft, a long‑range anti‑ship missile, two stratospheric platforms, a low‑cost surface‑to‑air interceptor for killing drones, and a newly announced 40‑foot Navy logistics‑and‑strike aircraft capable of near‑vertical takeoff and thousand‑mile missions with a thousand‑pound payload. None are yet in full‑rate production, but several are moving through government testing, with Thornton pushing to get multiple systems into mass manufacturing on an almost impossibly tight timeline.

Where many defense startups lead with software, Mach is trying to rebuild the hardware stack from the bottom up. Thornton argues that the real choke point is not clever autonomy algorithms but the industrial base beneath them: jet engines, solid rocket motors, radar. Mach has already designed and fired its own jet engines in months instead of years and bought a legacy rocket‑motor maker to secure supply. Components now make up roughly half its revenue.

Thornton’s bet is that creativity and speed can offset America’s manufacturing gap with China. To keep himself honest, he submits to regular company‑wide forums where employees grill him with unfiltered questions. For a founder trying to do everything at once, it is both a pressure test and a reminder: the experiment he is running is as much about building a new kind of defense company as it is about building weapons.