United States · Mining & metals startup

Mariana Minerals

Mariana Minerals is a software-first, vertically integrated minerals company founded in 2023-2024, with headquarters in San Francisco, California, and major operations in Houston, Texas.

Funding reportedLast round: Series B

Mining & metalsSan Francisco, United States

About Mariana Minerals

Mariana Minerals is a software-first, vertically integrated minerals company founded in 2023-2024, with headquarters in San Francisco, California, and major operations in Houston, Texas.

The company is recognized as the world's only software-centric minerals project developer and operator, focusing on transforming the mining industry through advanced technology, including artificial intelligence (AI) and machine learning (ML). Mariana Minerals manages the entire value chain, from proprietary asset identification to mineral rights acquisition and end-to-end project development. The company specializes in producing battery-grade lithium salts, refined copper, and nickel, targeting sectors such as energy, AI infrastructure, and defense technologies. Its proprietary software platform, MarianaOS, enhances operational efficiency and integrates autonomous systems for improved mineral production. With a mission to rebuild the U.S. domestic supply chain for strategic resources, Mariana Minerals aims to set new standards for speed, efficiency, and sustainability in the mining sector. The company has secured over $85 million in funding, enabling it to advance its innovative projects and contribute to national security by ensuring a reliable supply of critical minerals.

What company datasets say Mariana Minerals raised

Funding, as reported

Reported in all$420Min dollars
Last roundSeries B
Last round size$310M
Last round dateAug 2026
Investors listed5
SEC Form D$384M sold, 2 filings, last Aug 2026

Founders and team

From Mariana Minerals's own website: 10 on the team.

  • Turner CaldwellCEO
  • Angelo BraunChief People Officer
  • Baker TilneyCFO
  • James HoggardCOO
  • Juan LozanoCTO
  • Sara MaroofiChief of Staff
  • Darian OrozcoVP, Development & Engineering
  • Ian StewartVP, Business Operations
  • Kara EvanoffVP, Commercial & Product
  • Amanda LeeGeneral Counsel

On 5 portfolio pages

Investors who name them

Each firm lists Mariana Minerals on its own website. That is the firm's claim, a weaker thing than a round we watched, but a named source.

The company, in detail

What they build

Known for

user experienceconsumersdata protectioncustomer engagementmanufacturingmining operations managementcomputer & network securityemail marketingenterprisesautonomous fleet deploymentmining process automationinformation technology & servicesproject execution softwaredata securityweb developmentcloud computing

Built with from their website

Google Tag ManagerRadarstatsAmazon CloudFrontRSMeans Data OnlineWordPress.orgCompressorCallMiner Eurekai-motorFlowApache

+8 more

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Sector
Mining & metals
Industry code
NAICS 21229, 2131, SIC 1381
Region
California

Mining & metals in United States

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