SHORTList
Space/Defense

Marianaminerals

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. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.

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 minerals company that uses advanced software and automation to supply critical minerals for modern energy, AI, and defense technologies. Their proprietary platform, MarianaOS, enhances mining operations and refining processes, making them a key player in the minerals supply chain.

  • Series A funding round raised $85 million in July 2025, led by Andreessen Horowitz, with participation from Breakthrough Energy Ventures and Khosla Ventures.marianaminerals.com
  • TechCrunch reported on Mariana Minerals' partnership with Pronto to implement autonomous haulage trucks at their Copper One mine in Utah.techcrunch.com

WHY WE WOULD WORK AT MARIANA MINERALS

Innovative Technology

Join a software-first minerals company that leverages AI and machine learning through its proprietary platform, MarianaOS, to revolutionize mining operations.

Impactful Mission

Contribute to the development of critical minerals for modern energy, AI, and defense technologies, addressing the growing demand for sustainable resources.

Dynamic Team Culture

Be part of a diverse team of 51-200 employees in a collaborative environment, dedicated to transforming the minerals supply chain with cutting-edge solutions.

Strong Funding Backing

Benefit from the financial stability of an $85 million Series A funding round led by top investors like Andreessen Horowitz, ensuring resources for growth.

Growth Opportunities

Help shape the future of the minerals industry with a goal to develop 10 projects in 10 years, providing ample opportunities for career advancement.

Sustainable Practices

Engage in sustainable mining practices that prioritize efficiency and environmental responsibility, making a positive impact on the planet.

MARKET AND TRACTION

GROWTH TACTICS

  • Mariana Minerals aims to develop 10 mineral projects over the next decade to meet the increasing demand for critical minerals.

  • The company leverages advanced software and automation to optimize mining operations and project execution, enhancing efficiency and productivity.

  • MarianaOS, their proprietary platform, integrates AI and machine learning to improve decision-making across the supply chain.

    • TOTAL ADDRESSABLE MARKET

  • The demand for critical minerals is driven by sectors such as modern energy, artificial intelligence, and defense technologies.

  • As global reliance on these technologies increases, the market for critical minerals is expected to grow significantly over the coming years, presenting substantial opportunities for Mariana Minerals.

    • KEY METRICS

    ✦ KEY METRIC
  • Total Funding Raised: $85 million in Series A funding, led by Andreessen Horowitz.

  • Team Size: Between 51 and 200 employees, indicating a growing workforce to support project development.

  • Current Projects: Actively developing lithium, copper, and nickel projects in the U.S., with a goal of 10 projects in 10 years.

    • COMPETITIVE ADVANTAGE

  • Mariana Minerals is positioned as a software-first minerals company, differentiating itself through the integration of advanced technology in mining operations.

  • The use of MarianaOS allows for enhanced project execution and operational efficiency, setting the company apart from traditional mining firms.

    • MARKET POSITION

  • Founded in 2024, Mariana Minerals is emerging as a key player in the critical minerals sector, particularly in the U.S.

  • With significant backing from notable investors like Andreessen Horowitz, the company is well-positioned to capitalize on the growing demand for critical minerals.

    • PRODUCT AND TECH

    MarianaOS Platform

    MarianaOS is the proprietary digital platform that integrates AI and machine learning to optimize project execution, mining operations, and refining processes, revolutionizing the minerals supply chain.

    CapitalProjectOS Tool

    This integrated capital project execution tool within MarianaOS streamlines project management and enhances efficiency, ensuring timely delivery and cost-effectiveness in mineral project development.

    MineOS and PlantOS

    These autonomy platforms are designed for mining and refining operations, leveraging automation to improve productivity and safety in mineral extraction and processing.

    Reinforcement Learning Platform

    This platform utilizes reinforcement learning techniques to optimize operating conditions in processing facilities, enhancing the overall efficiency and output of mineral refining.

    Data-Driven Decision Making

    Mariana Minerals employs advanced data analytics and decision-making methodologies to inform strategic choices, ensuring that operations are aligned with market demands and technological advancements.

    COMPANY CULTURE

    Values

  • Innovation through technology and software

  • Commitment to sustainability in mineral sourcing

  • Integrity in operations and partnerships

  • Collaboration across teams and disciplines

  • Focus on safety and well-being of employees

    • Operating Principles

  • Data-driven decision-making at all levels

  • Emphasis on automation and AI integration

  • Continuous improvement in mining processes

  • Agile project management to adapt to market needs

  • Transparency in communication with stakeholders

    • Benefits

  • Opportunities for professional development and training

  • Competitive compensation and equity options

  • Flexible work arrangements to promote work-life balance

  • Health and wellness programs for employees

  • Engaging work environment fostering creativity

    • Team Cadence

  • Regular team meetings to align on project goals

  • Bi-weekly check-ins for progress updates

  • Quarterly reviews to assess performance and growth

  • Open-door policy for feedback and suggestions

  • Collaborative brainstorming sessions to drive innovation

    • Learning & Growth

  • Access to cutting-edge technology and tools

  • Support for attending industry conferences and workshops

  • Mentorship programs pairing new hires with experienced staff

  • Encouragement of cross-functional training and skill development

  • Focus on fostering a culture of continuous learning