SHORTList
Mariana Minerals logo
Climate/Energy

Mariana Minerals

Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies.

San Francisco HQ· 33 rolesMoab· 19 rolesHouston· 15 roles

CORE INFO

$85M
Total Funding
Series A
Round
2024
Founded
51-200
Team Size
San Francisco, California, USA
Headquarters

Mariana Minerals is a vertically integrated company that leverages its proprietary software, MarianaOS, to efficiently develop critical mineral projects in the U.S., focusing on lithium, copper, and nickel for sectors like energy, AI, and defense.

  • Mariana Minerals raised $85 million in a Series A funding round led by Andreessen Horowitz, with participation from Breakthrough Energy Ventures and Khosla Ventures.marianaminerals.com
  • TechCrunch reported on Mariana Minerals' partnership with Pronto to automate a copper mine, highlighting the company's innovative approach to modernizing mining operations.techcrunch.com

WHY WE WOULD WORK AT MARIANA MINERALS

Innovative Technology

Join a software-first minerals company leveraging MarianaOS to revolutionize mining efficiency and accelerate project timelines.

Critical Minerals Focus

Contribute to the supply of essential minerals like lithium, copper, and nickel for modern energy, AI, and defense technologies.

Collaborative Culture

Be part of a dynamic team of 51-200 professionals dedicated to transforming the mining industry with cutting-edge solutions.

Growth Opportunities

Help establish 10 projects over the next decade, with the first commercial-scale lithium facility, Lithium One, launching in 2027.

Responsible Mining

Engage in sustainable practices by producing battery-grade lithium salts from oil and gas wastewater, promoting environmental responsibility.

Strong Backing

Benefit from robust financial support with $85M raised in Series A funding, positioning the company for significant growth and impact.

MARKET AND TRACTION

TOTAL ADDRESSABLE MARKET

  • Mariana Minerals targets critical minerals essential for modern energy, artificial intelligence, and defense technologies.

  • The company aims to establish 10 projects over the next decade, focusing on lithium, copper, and nickel within the United States.

    • KEY METRICS

    ✦ KEY METRIC
  • Total funding raised to date is $85 million, with a Series A funding round led by Andreessen Horowitz (a16z).

  • The company is targeting production at its first commercial-scale lithium production facility, Lithium One, in the first half of 2027.

    • GROWTH TACTICS

  • Mariana Minerals integrates its proprietary software platform, MarianaOS, to enhance operational efficiency and accelerate project timelines in the mining industry.

  • The company is currently producing battery-grade lithium salts from oil and gas wastewater, showcasing innovative approaches to resource extraction.

    • COMPETITIVE ADVANTAGE

  • By leveraging advanced software solutions, Mariana Minerals aims to revolutionize mining operations, making them more efficient and effective compared to traditional methods.

  • The company's focus on critical minerals positions it strategically within high-demand sectors, such as energy and defense.

    • MARKET POSITION

  • Mariana Minerals is positioned as a software-first, vertically integrated minerals company, differentiating itself from traditional mining companies.

  • The company has garnered attention from notable investors, including Breakthrough Energy Ventures and Khosla Ventures, indicating strong market confidence in its business model.

    • PRODUCT AND TECH

    MarianaOS Platform

    MarianaOS is an internally developed software platform that utilizes AI and machine learning to optimize mineral project development and operations, aiming to accelerate the mining industry's traditionally slow pace.

    Lithium Production Facility

    Lithium One is Mariana Minerals' first commercial-scale lithium production facility, targeting production of battery-grade lithium salts from oil and gas wastewater, set to commence in the first half of 2027.

    Critical Minerals Focus

    Mariana Minerals is dedicated to developing lithium, copper, and nickel projects within the United States, with a strategic goal of establishing 10 projects over the next decade to supply essential minerals for modern technologies.

    Pilot Production Capabilities

    The company is currently producing battery-grade lithium salts in its laboratory and pilot facilities, showcasing its innovative approach to sourcing critical minerals from unconventional resources.

    Vertically Integrated Operations

    Mariana Minerals employs a vertically integrated model that combines software solutions with mineral extraction processes, enhancing operational efficiency and enabling rapid project development.

    COMPANY CULTURE

    Values

  • Commitment to sustainability and responsible resource extraction

  • Innovation through technology and software integration

  • Collaboration and teamwork across all levels

  • Transparency in operations and decision-making

  • Focus on safety and well-being of employees

    • Operating Principles

  • Leverage advanced software solutions to enhance efficiency

  • Foster a culture of continuous improvement and learning

  • Prioritize ethical practices in mineral sourcing

  • Encourage open communication and feedback among team members

  • Strive for excellence in project execution and delivery

    • Benefits

  • Opportunities for professional development and growth

  • Competitive compensation and equity options

  • Flexible work arrangements to support work-life balance

  • Health and wellness programs for employees

  • Engaging work environment that values diversity and inclusion

    • Team Cadence

  • Regular team meetings to align on goals and progress

  • Bi-weekly check-ins to discuss project updates and challenges

  • Monthly all-hands meetings to share company-wide news

  • Continuous feedback loops to foster improvement and innovation

    • Learning & Growth

  • Access to training programs and workshops

  • Mentorship opportunities with experienced leaders

  • Encouragement of cross-departmental collaboration for knowledge sharing

  • Support for attending industry conferences and events

    • COMPENSATION SNAPSHOT

    B-
    Comp score vs cohort
    vs. Climate/Energy · Series A · US
    Based on publicly available compensation ranges from job postings; exact compensation may vary.
    Engineering IC3n = 3
    $110K – $150Kmedian $130K
    Los Angeles / Bay Area
    Engineering IC4n = 4
    $135K – $188Kmedian $161K
    Los Angeles / Bay Area
    Engineering IC5n = 8
    $146K – $184Kmedian $165K
    AustinLos Angeles / Bay Area
    Engineering Managern = 3
    $176K – $212Kmedian $194K
    Los Angeles / Bay Area
    Operationsn = 7
    $130K – $170Kmedian $150K
    Los Angeles / Bay Area
    Product ICn = 4
    $148K – $209Kmedian $178K
    Los Angeles / Bay Area
    US-only in v1 · only categories with n > 2 shown · in-person / hybrid / remote treated separately where n ≥ 3

    HIRING SIGNAL

    76
    Open roles on their careers page
    Snapshot via live ATS poll
    —
    Net new roles in the last 90 days
    Available once weekly history accrues
    90-Day VelocityV2 · BACKFILL
    Trend builds weekly as historical rows accrue
    By Function
    Breakdown of open roles
    Data · 1
    Other · 53
    Design · 6
    G&A · 1
    Product · 4
    Operations · 3
    Engineering · 8
    Top Locations
    Where hiring is concentrated
    Remote-eligible postings counted separately
    San Francisco HQ
    33
    Moab, UT
    19
    Houston, TX
    15
    East Texas
    5
    Ann Arbor, MI
    3
    Remote
    1
    SourcesGreenhouseLeverAshbyWorkableSmartRecruitersRipplingRecruiteeFallback · Wellfound, YC Work-at-a-Startup, careers-page scrape

    KEY COMPANY ANNOUNCEMENTS

    Filter
    11 announcements · ranked by importance
    Aug 3, 2026FUNDINGKhosla leads $310 million raise for unicorn mining startup Mariana Minerals | Fortunefortune.com
    Apr 27, 2026PRODUCTMariana Minerals Launches Autonomous Copper Mine at Copper One in Utah Using AI Robots — The Fourth Factorthefourthfactor.io
    Mar 16, 2026MILESTONECopper One acquisition and restartmarianaminerals.com
    Apr 27, 2026FOUNDER PROFILEThis Tesla Veteran Is Running A Copper Mine With AI-Powered Robotsforbes.com
    Jul 21, 2025FUNDINGMariana Mineralsmarianaminerals.com
    Oct 22, 2025CUSTOMER WINSelect Water Solutions and Mariana Minerals Break Ground on Texas's First Commercial Produced Water Lithium Extraction Facility :: Select Water Solutions, Inc. (WTTR)investors.selectwater.com
    Jul 1, 2025ESSAYMariana Minerals: A software-first minerals companylinkedin.com
    Mar 27, 2026INTERVIEWThe SpaceX and Tesla Playbook for Hard Tech Startups | Andreessen Horowitza16z.com
    Mar 19, 2026CUSTOMER WINThe Metals Company strategic partnership with Mariana Mineralsinvestors.metals.co
    Apr 9, 2026PRESSEx-Tesla engineer’s startup taps Pronto to help automate a copper mine | TechCrunchtechcrunch.com
    Apr 7, 2026FUNDINGForm D filing — Mariana Minerals Co. (CIK 0002123886)sec.gov