Mariana Minerals Raises $310 Million in Series B Funding

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Summary

Mariana Minerals raised $310 million in Series B funding led by Khosla Ventures, with more than ten other investors participating. The company builds MarianaOS, an end-to-end AI digital mining system, and also operates lithium, copper, and nickel mines. It targets U.S. supply chains for energy, AI compute, and defense customers while offering digital mine SaaS licensing. The new capital will help the company accelerate smart mining deployment and expand production capacity.

$ Funding

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Amount $310.0M Total raised
Date August 1, 2026 Announcement date
Investors Kholsa Ventures Lead investors
Company marianaminerals.com Funded company

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