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Mariana Minerals
Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy and AI. The company is building a better minerals company and has its headquarters in San Francisco, California.
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Mariana Minerals at a glance
Mariana Minerals is a mining company. Xcout tracks 18 named people at Mariana Minerals, including Turner Caldwell (CEO). Xcout recorded 104 job postings from Mariana Minerals in the last 90 days, naming tools such as Claude Code, Cursor, Replit.
Mariana Minerals leadership
- Turner CaldwellCEO
- James HoggardCOO
- Baker TilneyCFO
- Juan LozanoCTO
- Angelo BraunChief People Officer
- Sara MaroofiChief of Staff
12 more named people on record for Mariana Minerals, with roles, board committees and tenure — see the full roster →
Hiring at Mariana Minerals
Xcout recorded 104 job postings from Mariana Minerals in the last 90 days, from a hiring record Xcout has kept since June 2026.
Tools named in Mariana Minerals's job postings
The weekly hiring trend, the roles and locations behind it — see Mariana Minerals's hiring signals →
Hiring vs the trend
Based on 75 job postings in the last 8 weeks (17 Aug – 11 Oct 2026), compared with 5 basic materials companies.
This describes a hiring pattern — how often Mariana Minerals’s job postings ask for AI skills, and how that changed against the previous 8 weeks, ranked among its peers. It says nothing about the company’s products or performance.
Signed-in members see the AI-skill share and its change with peer percentiles, role mix, posting momentum and advertised US pay against the market.
Tech stack
Mariana Minerals competitors
A few of Mariana Minerals's closest competitors — see the full list of competitors and alternatives →
TMC the metals company Inc., a deep-sea minerals exploration company, focuses on the collection, processing, and refining of polymetallic nodules found on the seafloor in California. It primarily explores for nickel, cobalt, copper, and manganese products. The company holds exploration and commercial rights in two polymetallic nodule contract areas in the Clarion Clipperton Zone of the Pacific Ocean. Its products are used in electric vehicles (EV) and energy storage markets; manganese alloy production required for steel production; and EV wiring, energy transmission, and other applications. The company was founded in 2011 and is based in Vancouver, Canada.
Technology Minerals Plc functions as an enterprise dedicated to mineral exploration. The company's primary focus is on identifying and developing resources of critical battery metals, such as cobalt, copper, lithium, nickel, and manganese. It oversees various mineral resource initiatives situated in Ireland, Spain, Cameroon, and the United States. Established in 2021, Technology Minerals Plc maintains its headquarters in London, United Kingdom.
Green Minerals is a marine mineral exploration and mining company focused on extracting metals, minerals, and rare earth elements from the seabed. The company aims to provide a sustainable and secure supply of critical raw materials for the global green transition, electrification, and digitization markets.
Monumental Minerals Corp. is a Canadian mineral-exploration company focused on evaluating and developing mineral properties, including lithium-brine and other critical-mineral projects in the Americas. It serves investors and potential mining or strategic partners rather than retail customers.
MP Materials Corp. manages and operates facilities dedicated to the extraction and refinement of rare earth elements. The company's primary asset is the Mountain Pass Rare Earth mine, a key operation situated within the Western Hemisphere. MP Materials holds comprehensive mineral rights for this significant deposit and its surrounding areas, alongside proprietary intellectual property essential for the ongoing processing and technological development of rare earth minerals. Its product offerings include critical elements such as cerium, lanthanum, neodymium, praseodymium, and samarium. Established in 2017, the company is headquartered in Las Vegas, Nevada.
Rock Zero is a privately held mining and materials technology company headquartered in Cambridge, Massachusetts. Founded with a small team, the company has developed innovative chemical extraction processes designed to unlock hardrock lithium resources in North America. Its mission centers on securing a sustainable, domestic supply chain for critical battery materials.
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More on Mariana Minerals in Xcout Intel
- 18 named people with titles, LinkedIn and board committees
- Weekly hiring history and the mix of roles behind it
- The full competitor set, tracking, exports and API access