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Mach Industries Soars to $1.8 Billion Valuation, Paving Way for Autonomous Defense Tech

Mach Industries, the defense tech startup founded by Ethan Thornton, has raised a $300 million Series C round at a $1.8 billion valuation, signaling an impressive growth spurt in just one year.

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Updated Jun 3, 2026
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Mach Industries Soars to $1.8 Billion Valuation, Paving Way for Autonomous Defense Tech

Mach Industries, a three-year-old defense technology company run by 22-year-old founder and CEO Ethan Thornton, has recently announced a $300 million Series C raise at a staggering $1.8 billion valuation. This impressive growth nearly quadruples the company's value in just one year, showcasing the immense interest and investment in defense tech startups.

The round was led by deep tech fund Infinite Capital and Ribbit Capital, known for their involvement in AI coding startups like Cognition and neoclouds such as Crusoe. Other investors include Bedrock Capital, Sequoia Capital, and Khosla Ventures. Since its founding in 2023, Mach Industries has seen significant growth, with Thornton dropping out of MIT at the age of 19 to pursue this ambitious venture.

Thornton revealed that fundraising efforts were initially aimed at raising $200 million but quickly became oversubscribed, leading them to increase their target. “We went out to raise 200 [million dollars] and we were extremely oversubscribed at 200 and happy with the price, so we decided to push up to 300,” he shared with TechCrunch.

Mach Industries is developing five autonomous vehicles: Viper (a jet-powered vertical takeoff vehicle), Glide (a high-altitude glider capable of launching weapons), Stratos (an airborne surveillance platform), Dart (a low-cost counter-drone interceptor), and Pike (intended for launching long-range munitions). Thornton expects production to begin next year on at least three of these systems.

Additionally, the company has won a Department of Defense contract with the Defense Innovation Unit (DIU) to develop a new runway-independent strike aircraft. This project could have significant commercial applications as well. Mach Industries has grown from just 12 employees in its first year to over 350 today and has established several production facilities, including a 115,000-square-foot manufacturing facility in Huntington Beach.

One of the key factors driving this growth is Mach Industries' acquisition of solid rocket motor (SRM) startup Exquadrum for $50 million. This move ensures that the company has control over its supply chain and launches a new commercial business, Mach Energetics, to sell these engines.

Thornton emphasized the importance of rapid product development in defense tech startups, contrasting it with legacy prime contractors who take up to four years to build jet engines. Mach Industries managed to go from no team to building and firing a jet engine in just eight months.

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