Magrathea Metals

Founded in 2022 and headquartered in San Francisco, California, Magrathea Metals is pioneering a revolutionary electrolytic process to produce carbon-neutral magnesium metal from seawater and brines. This innovative approach not only addresses critical supply chain vulnerabilities—especially given that NATO currently has zero magnesium production—but also supports global electrification and decarbonization efforts. With substantial backing, including a $28 million partnership with the U.S. Department of Defense, Magrathea is poised to transform industries reliant on lightweight metals, such as automotive and aerospace, by providing a sustainable and domestically sourced alternative to traditional magnesium production.