Defense Tech Startup Mach Industries Doubles Valuation in Three Months
Mach Industries, a defense technology startup specializing in unmanned military vehicles and weapons systems, has raised an additional $600 million through a Series C extension round. This brings its valuation to $3.7 billion, doubling from the previous $1.8 billion just three months earlier. The company initially announced a $300 million raise at that valuation in June 2025 and had previously secured $100 million at a $470 million valuation in June 2024. Mach Industries, based in Huntington Beach, California, produces integrated systems it claims are more cost-effective than those of traditional defense contractors. The company recently acquired Exquadrum for $50 million to address supply chain bottlenecks and launched a new business unit called Mach Energetics focused on solid rocket motors (SRMs), jet engines, and energetic systems. Founded by 22-year-old Ethan Thornton, who dropped out of MIT at age 19, the company has attracted major investors including Sequoia Capital and Ribbit Capital. The rapid valuation growth reflects strong investor confidence in defense tech startups backed by Silicon Valley venture capital firms.
Topics: acquisitions defense tech funding rounds startups unmanned military systems