Mach Industries raises $300M Series C at $1.8B valuation for multi-platform defense tech
Tags AI · Infrastructure
Defense tech startup Mach Industries closed a $300 million Series C at a $1.8 billion valuation, a 4x increase from a year ago, bringing total raised to approximately $485 million. Founded by 25-year-old MIT dropout Ethan Thornton, the company is pursuing six simultaneous weapons programs: vertical-takeoff strike aircraft, long-range anti-ship missile, two stratospheric systems, drone interceptor, and a 40-foot Navy logistics-strike aircraft. Mach Industries acquired solid rocket motor company Exquadrum for $50M in May 2026. Backed by Sequoia, Khosla Ventures, and Ribbit Capital, the company has won 13 government contracts.
Technical significance
Mach Industries' six-platform strategy contrasts with focused competitors like Shield AI ($12.7B valuation) and Saronic ($9.25B). Whether a broad approach can compete with specialized players remains an open question, but the $300M round at 4x growth signals investor confidence in the Pentagon's drone dominance spending priorities.