MOverview
Magrathea Metals uses electrochemical processes to produce structural metals without traditional mining, aiming to reduce environmental and social impacts and lower production costs. It serves construction, automotive, and aerospace industries with sustainably produced metals. Revenue comes from selling these metals and licensing its proprietary technology to other manufacturers. Its goal is to provide cost-effective, scalable metals with lower environmental impact for major industries.
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About Magrathea
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Industries
Company Size
11-50
Company Stage
Series A
Total Funding
$35.9M
Headquarters
Oakland, CA
Founded
2022
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Funding
Total Funding
$35.9M
Above
Industry Average
Funded Over
3 Rounds
Industry standards
Benefits
- Health Insurance
- Dental Insurance
- Vision Insurance
- Stock Options
- Company Equity
Company News
[SMM Magnesium Express]U.S. company Magrathea announced the completion of a new round of financing, with cumulative capital support exceeding $100 mil
Magrathea, a US magnesium producer, has completed a financing round bringing total capital raised to over $100 million. The company has built the only new primary magnesium smelter in the US and signed multiple commercial agreements, targeting future annual sales exceeding $500 million. In March 2026, Magrathea secured $24 million in Series A funding and established Arkansas Magnesia through a joint venture with TETRA. The first-phase commercial plant has begun engineering design. The company has developed electrolysis technology that produces metallic magnesium from seawater and brine. As the project advances, US domestic magnesium supply chain self-sufficiency is expected to strengthen.
Magrathea, a San Francisco-based company extracting magnesium metal from waste brines and seawater, has raised $24 million in Series A funding. The round was led by Resource Technology Capital and Balerion Space Ventures, with participation from Oxcart, WovenEarth, Audacity, Avila and existing investors VoLo Earth, Capricorn Investment Group and Ora Global. The startup is developing carbon-neutral technology using a next-generation electrolytic process to produce sustainable magnesium for industry, aiming to reduce reliance on mining and Chinese supply chains. Led by CEO Alex Grant, Magrathea operates a pilot facility in Oakland, California. The funding will be used to expand operations, advance development efforts and build a demonstration smelter.
As with previous years, the 2025 Comms Council UK Awards was sponsored by Magrathea, and the winners were announced at a ceremony in London yesterday.
Magrathea, a technology company specialising in magnesium production from seawater, has launched its new magnesium chloride electrolyser at its pilot facility in Oakland, California, US.
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About Magrathea
We're working on gathering enough insights on this company, check back soon!
Industries
Company Size
11-50
Company Stage
Series A
Total Funding
$35.9M
Headquarters
Oakland, CA
Founded
2022
Magrathea is Hiring for 1 Jobs on Simplify!
Find jobs on Simplify and start your career today
Don't see your dream role? Check out thousands of other roles on Simplify.Browse all jobs