Mach Industries hits $1.8bn as Pentagon drone push lifts defence-tech valuations

A 22-year-old MIT dropout has propelled his defence-tech startup to a $1.8 billion valuation, capitalizing on surging Pentagon demand for drone technology. Mach Industries, based in Huntington Beach and founded just three years ago, closed a $300 million Series C funding round that values the company at nearly four times its June 2025 price tag.

The fresh capital signals a broader shift in the defence sector, where venture-backed startups are increasingly challenging traditional contractors. Mach Industries, led by founder and CEO Ethan Thornton, has positioned itself as a key supplier of next-generation unmanned systems and defence hardware tailored to modern warfare needs.

Thornton, who left MIT to build the company, has overseen rapid growth since its inception. The latest valuation jump from roughly $450 million to $1.8 billion reflects both investor confidence and the Pentagon’s aggressive push to integrate autonomous drones and low-cost munitions into its arsenal. This trend has lifted valuations across the defence-tech landscape, as government contracts and strategic partnerships fuel expansion.

The Series C round underscores how young, agile firms are capturing a slice of the vast defence budget, traditionally dominated by legacy giants. With the Pentagon prioritizing speed and innovation, Mach Industries appears well-positioned to scale its production and deliver on high-demand military programs.