Mach Industries Raises $300M Series C at $1.8B Valuation for Simultaneous Defense Programs
Tags AI · Infrastructure · Enterprise
Mach Industries, founded by 22-year-old MIT dropout Ethan Thornton, closed a $300 million Series C at a $1.8 billion valuation, bringing total funding to roughly $485 million. The defense tech startup is running six simultaneous weapons programs: vertical-takeoff strike aircraft, a long-range anti-ship missile, two stratospheric systems, a cheap surface-to-air drone interceptor, and a 40-foot Navy logistics-and-strike aircraft that flies over 1,000 miles with a 1,000-pound payload. Mach acquired solid rocket motor company Exquadrum for $50 million in May 2026 and built two jet engines from scratch in approximately eight months — a process that traditionally takes four years. Investors include Sequoia Capital, Khosla Ventures, and Ribbit Capital.
Technical significance
Mach's approach — running six parallel weapons programs and acquiring critical component suppliers — represents a new model for defense tech startups that prioritizes speed over the traditional defense procurement timeline. The $1.8B valuation at this stage signals strong investor confidence in the 'out-create China' thesis. However, the company has not yet pushed any program into rate manufacturing, and the comparison to Anduril ($61B valuation, $20B Army contract) shows the scale of the challenge ahead.