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Mariana Minerals funding, valuation and investors
Software-first mining company for U.S. lithium, copper, and nickel via MarianaOS platform.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series A
Amount not disclosed · July 2025
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
Not publicly disclosed
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
series a · United States
Overview
Mariana Minerals is a vertically integrated mining company applying software and AI (MarianaOS) to accelerate discovery and development of U.S. lithium, copper, and nickel projects. The company aims to stand up ten mining projects in ten years — a pace traditional mining cannot match. Mariana raised a Series A in July 2025 led by Andreessen Horowitz, with Khosla Ventures and Breakthrough Energy Ventures continuing from seed participation.
Why Mariana Minerals is interesting
Mariana targets '10 projects in 10 years' with MarianaOS — a16z-led Series A (Jul 2025) as American Dynamism investors bet AI-accelerated domestic critical-minerals supply beats traditional mining timelines.
Product & use cases
MarianaOS is the company's software platform for mineral exploration, project evaluation, and operational coordination — enabling a software-first mining model that compresses traditional decade-long project timelines.
- Domestic lithium supply for U.S. battery and EV manufacturing
- Copper and nickel project development for energy transition demand
- AI-accelerated site selection and permitting workflow optimization
Key facts
- Series A (Jul 2025): led by a16z; Khosla and Breakthrough Energy continued from seed
- Goal: 10 mining projects in 10 years via MarianaOS software platform
- Focus: U.S. lithium, copper, nickel for energy transition supply chains
- American Dynamism / climate-tech crossover investment
Funding history (newest first)
Series A
2025-07Investors in our directory
Funds linked from Mariana Minerals's profile — open a fund page for stage focus and related deal articles.
Competitive landscape
Edge: Mariana combines Silicon Valley software speed with mining execution — a16z American Dynamism thesis applied to critical minerals alongside Khosla and Breakthrough Energy climate capital.
U.S. critical mineral supply is a national priority but mining timelines are glacial. Mariana's bet: software-operated mining company can parallelize projects incumbents run sequentially — unproven at 10-in-10 scale but capitalized to try.
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KoBold Metals adjacent
Also AI-driven mineral exploration; KoBold more discovery-focused, Mariana vertically integrated operator.
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Major miners (Freeport, Albemarle) incumbent
Established reserves and production; Mariana bets software accelerates new U.S. project timelines.
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Traditional exploration juniors alternative
Manual geology workflows; Mariana's MarianaOS differentiator.
Notable stories
- Mariana's '10 projects in 10 years' goal explicitly challenges mining industry norms where single projects can take 15+ years from discovery to production.
- a16z leading Series A frames domestic mining as software problem — matching the firm's American Dynamism thesis beyond defense and manufacturing.
Industries
Related funding articles
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FAQs about Mariana Minerals
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