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Khosla leads $310 million raise for unicorn mining startup Mariana Minerals to expand its software-focused capabilities in critical minerals.
PRIVATEAug 03, 2026•6 days ago
Amount Raised
$310 Million
Round Type
Venture - Series Unknown
San FranciscoMiningMining Technology
Investors
Khosla Ventures
Description
Khosla Ventures has completed a $310 million funding round for Mariana Minerals, a mining startup focused on software solutions for metal extraction. The funding will support the company's expansion into critical minerals such as aluminum and magnesium. CEO Turner Caldwell emphasizes the importance of reducing costs in the modern economy. This financial boost will strengthen Mariana's position in a high-risk supply chain dominated by China.
Company Information
Company
Mariana Minerals
Location
San Francisco, California, United States
About
Mariana Minerals is a software-focused mining startup co-founded by Turner Caldwell, Baker Tilney, and Juan Lozano. The company aims to revolutionize the mining sector by reducing the cost of critical minerals to support modern economies. Mariana operates mines in Utah and Texas and seeks to address the rising demand for metals driven by advancements in technology and AI. With a current valuation of $1.5 billion, it has raised a total of $400 million in funding.
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San FranciscoMiningMining Technology