Magrathea Metals
PrivateLast Round
Series A
May 5, 2026
Est. Valuation
$78.43M
Total Funding Raised
$105.3M
Momentum
Top 10%
of companies Caplight tracks
Company Overview
Magrathea Metals is a cleantech company that develops electrolytic technology to produce carbon-neutral magnesium metal from seawater and brines.
Sector
Frontier & Industrial Tech
Verticals
Advanced Materials, Defense Tech, Sustainable Materials, Supply Chain, Clean Manufacturing
Business Model
B2B
Customer Profile
Hardware Sales, Government Contracts
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Magrathea Metals Comparables
Compare Magrathea Metals with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Big Blue Technologies | 82% | |
| Tidal Metals | 82% | |
| U.S. Green Magnesium, LLC | 79% | |
Magrathea Metals Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | May 5, 2026 | ||||
| Series A | Mar 1, 2026 | ||||
| Grant | Feb 1, 2024 | ||||
| Grant | Sep 22, 2023 | ||||
| Seed | Jun 7, 2023 |
Key People
Founding team and executive leadership
Magrathea Metals Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Capricorn Investment Group | Series A, Seed |
| Avila VC | Series A |
| EQT Foundation | Seed |
| Balerion Space Ventures | Series A |
| The Untitled ventures | Seed |
| OXCART Ventures | Series A |
| United States Department of Defense | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- May 18, 2026
Monthly visitors grew 107% MoM, from 1.9K to 4K.
- May 5, 2026
$24M round led by Balerion Space Ventures and Resource Technology Capital.
Magrathea Metals Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Magrathea Metals's valuation, stock price, and market status.