Mariana Minerals
Software-first, vertically integrated critical minerals company
About
Mariana Minerals is a San Francisco-based, software-first, vertically integrated critical minerals company co-founded in 2024 by Turner Caldwell, Baker Tilney and Juan Lozano. It engineers, builds and operates mines and refineries using its MarianaOS platform, which combines CapitalProjectOS, MineOS and PlantOS into one AI and machine learning stack. Its flagship sites are Copper One, an operating copper mine and refinery in southeastern Utah restarted under autonomous orchestration, and Lithium One in East Texas, a facility producing lithium from oil and gas produced water. In August 2026 it announced a $310 million Series B led by Khosla Ventures, bringing total parent and project capital raised to about $400 million.
- Website
- marianaminerals.com
- Added via
- web
- Ownership
- unclaimed
Where to go
For people
- Homepagemarianaminerals.com
For agents
Nothing listed yet.
Products
- MarianaOS — AI and machine learning operating platform for mines, refineries and capital projects · Saas