Mach Industries, the three-year-old defense tech startup run by 22-year-old founder and CEO Ethan Thornton, has raised a $300 million Series C at a $1.8 billion valuation, the company announced on Monday.
The raise nearly quadruples the valuation of the company in a year. In June 2025, Mach raised $100 million at a $470 million valuation. It has now raised about $485 million total from investors, including Bedrock Capital, Sequoia Capital, and Khosla Ventures.
Originally reported by TechCrunch
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