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REMOVE CO₂ WHERE

IT MATTERS MOST

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WHAT WE DO

CO₂ from Point Sources

CO₂ is captured directly from industrial sources and converted into dissolved bicarbonate using limestone and water, preventing emissions and enabling permanent, verifiable carbon storage. The process is based on Planeteers’ patentpending technology, designed for scalable integration and long-term monitoring.

Atmospheric CO₂

Mineral compounds (ikaite) are produced through Planeteers’ patented HCM technology and released into marine environments to increase ocean alkalinity, allowing seawater to absorb and store additional atmospheric CO₂. This controlled pathway enables large-scale, permanent, and verifiable carbon storage in the ocean.

    Nature does it…
    we advance it!

    OUR PROJECTS

    FIELD TESTING, Germany

    Field-tested across four sites in Germany to validate perfor-mance under real CO₂ streams, water conditions, and operational constraints.

    Project HELIX, 2025, Hetlingen, Germany

    Our first production unit validating our closed engineered weathering system under operational conditions.

    Project OSTREA, 2026, North Germany

    Our facility applying our technology at expanded capacity for long-term performance and operational scalability.

    Project NAUTILUS, 2028, Switzerland

    Upcoming project in Switzerland advancing our technology deployment within a new regulatory and environmental framework.

      FIELD TESTING, Germany

      Field-tested across four sites in Germany to validate perfor-mance under real CO₂ streams, water conditions, and operational constraints.

      Project HELIX, 2025, Hetlingen, Germany

      Our first production unit validating our closed engineered weathering system under operational conditions.

      Project OSTREA, 2026, North Germany

      Our facility applying our technology at expanded capacity for long-term performance and operational scalability.

      Project NAUTILUS, 2028, Switzerland

      Upcoming project in Switzerland advancing our technology deployment within a new regulatory and environmental framework.

        Partner with Planeteers to make carbon removal part of your operations. Our technology integrates with existing industrial and municipal systems, enabling measurable, permanent climate impact.

        Our Partners

        BUY CREDITS

        High-integrity removals. Built for real impact. Purchase permanent, verified CO₂ removal credits built on proven chemistry and transparent monitoring.

        COMPANY

        2030

        Advancing toward megaton-scale carbon removal through global replication and strategic partnerships.

        2027 / 2028

        Commissioning of the 2,500-ton and 10,000-ton units, expanding operational capacity and regional coverage.

        2026

        Deployment of the 1,000-ton unit, marking the transition from pilot to industrial scale.

        2025

        First certified ton of CO2 removed under Isometric standards / Sustainability Award Winner.

        2024

        Pilot reactors tested at wastewater treatment sites, Planeteers wins the Hamburg Startup Award, and completes its Seed Round.

        2023

        Technology validated under lab conditions and replicated in a Hamburg garage as the first full-scale prototype.
        Founded by engineers, scientists, and entrepreneurs, Planeteers was built on one idea — using science to make permanent carbon removal a real, scalable solution.

        Turn the tide for a livable future

        Questions & Answers

        1. Who are the Planeteers?
        Planeteers is a climate-tech company from Hamburg, founded by engineers, scientists and entrepreneurs. We turn established natural chemistry into a permanent and scalable carbon removal solution. Planeteers develop engineered systems that accelerate a natural weathering process to remove CO₂ and store it safely in water.
        2. How do you remove CO₂?
        We remove CO₂ by replicating a natural weathering process in a controlled, engineered system. Our technology modules bring captured CO₂ into contact with alkaline minerals. Through this natural reaction, the CO₂ is converted into stable bicarbonate, which can be safely stored in water. Since the process takes place inside a closed and monitored unit, every step can be measured, verified, and scaled responsibly.
        3. Why focus on the ocean?
        The ocean is the world’s largest natural carbon sink, already absorbing about a quarter of global CO₂ emissions. By supporting its natural buffering capacity, we help it store carbon more efficiently and reduce ocean acidification.
        4. What makes Planeteers’ approach different?
        Planeteers’ approach is unique because it delivers complete, verifiable carbon removal within one integrated system. Our modular units capture CO₂, convert it through a natural weathering reaction, and prepare it for safe storage, all inside a closed and controlled process. This all-in-one design makes deployment faster, operations safer, and measurement more reliable compared to traditional multi-step setups.
        5. Is the process safe for the environment?
        Yes. Environmental safety is a top priority for Planeteers. The minerals and reactions used in our processes are naturally occurring and non-toxic. Every site undergoes detailed scientific assessment and continuous monitoring to ensure full compliance with environmental standards and protection of local ecosystems.
        6. Does it affect drinking water or river life?
        No. We only operate in water systems that are not used for drinking water and ensure all parameters remain well within legal environmental limits. For every project, we work closely with our scientific partners and local authorities to model and assess each water body in detail, ensuring full environmental safety and compliance before installation.
        7. Where are your projects located?
        Our first pilot project operates in northern Germany. As we continue to scale our technology, we will expand to other sites in Europe and beyond. If you are interested in partnering for a future project on your site, please contact us.
        8. How is your impact verified?
        Our carbon removal is measured and reviewed through independent scientific partners and the verification framework of Isometric. Every tonne of CO₂ is monitored throughout the process and documented to ensure accurate, durable and transparent accounting.
        9. How can companies work with Planeteers?
        Organizations can purchase verified CO₂ removal credits or partner with us to deploy modular systems at their own sites. To explore collaboration opportunities, please contact us here:
        10. What is your long-term goal?
        By 2050, Planeteers aims to remove one gigatonne of CO₂ per year, helping to restore climate balance and protect the world’s oceans.