About Arbon Earth

Arbon Earth is a marine-based Carbon Dioxide Removal (CDR) company that removes CO₂ from the atmosphere by cultivating and sequestering macroalgae in the deep ocean.

By leveraging photosynthesis - nature's most efficient carbon capture process, the company combines high permanence and low costs with minimal ecosystem impact. Arbon Earth’s methods are built on scalable systems where biomass is lowered to the deep sea floor, isolating carbon from the atmosphere for centuries to millennia.

The sequestered CO₂ is verified and certified by a third party (ONCRA). Revenue is generated through the sale of negative CO₂ tons to corporations aiming to reach Net Zero or strengthen their sustainability profile. The CDR market is in an early but rapidly growing stage driven by both corporations and nations.

Our approach is:

  • Natural & low-tech — no artificial air capture machinery.

  • Good for communities — we partner with coastal and island societies, creating local jobs and shared knowledge about the sea.

  • Beneficial to nature — the OceanPods also act as marine nurseries, supporting biodiversity.

  • Third-party verified — our method is verified through ONCRA, the Open Natural Carbon Removal Accounting Platform.

Join the Movement

Whether you’re a company, government, or individual ready to make a difference, we’re here to help you take climate action that counts — with real, verified carbon removal you can trust. Let us help you remove CO₂

Meet the Team

  • Magnus Willner

    CO-FOUNDER, CTO

    Serial entrepreneur and inventor, with background in IT and ocean-based climate solutions.

    Successful previous exits.

    Experience translating marine science into deployable, scalable systems.

    magnus@arbon.earth

  • Carl Lindberg

    CO-FOUNDER, M&V AND IP

    Serial entrepreneur, mathematician, PhD, and AI expert.

    Co-founder of Sigmastocks (acquired by Avanza), expertise in modeling and analysis.

    Specialized in applying advanced quantitative methods to complex systems.

    carl@arbon.earth

  • Mai Thai

    CO-FOUNDER, CSO

    Serial entrepreneur. Co-founder of Sigmastocks (acquired by Avanza).

    Background in building scalable, data- driven products and growth organizations.

    Experience operating at the intersection of technology, and regulation.

    mai@arbon.earth

  • Nanna Stranne

    CO-FOUNDER, CEO

    Serial entrepreneur and former CEO of Sigmastocks (acquired by Avanza).

    Proven leader with experience scaling regulated, high-growth companies.

    Hands-on experience leading capital raises, investor relations, and company-building - early stage to exit.

    nanna@arbon.earth

Milestones

Arbon Earth is advancing to become a leader in Ocean Based Carbon Capture and Storage, with island sites around the world.

2026 · Team, Permits, and Scaling

  • Team strengthened with Mai Thai and Nanna Stranne.

  • Expanded investor base with strategic investors increases long-term capital and confidence in the approach.

  • Focus on scalability - ongoing permit applications, production launch, and global expansion of verified ocean-based carbon removal.

2025 · Science, Customers, and Market

  • Feasibility studies and tests conducted in multiple regions: Indonesia, Iceland, and the Caribbean.

  • Cost-effective deep-sea verification technology further developed.

  • New customers and partners onboarded.

  • Complementary CDR methods developed: Alongside OceanPods, OceanBaskets are deployed near the coast using bamboo and macroalgae to enhance scalability.

2024 · Scaling and International Collaboration

  • Biodiversity and CDR studies in Kenya and Tanzania with local researchers and universities.

  • Collaboration with SMHI, Gothenburg University, and Chalmers on long-term carbon storage and permanence.

  • New angel investors join Arbon Earth.

2023 · Verification and Ocean Tests

  • Live tests conducted in the Atlantic and Indian Ocean.

  • OceanPods certified by ONCRA.

  • Innovation grant awarded by Vinnova.

2021–2022 · Idea and Foundation

  • Hackathon and concept: Magnus Willner organizes a climate hackathon with marine biologists, where the OceanPod concept is developed together with Carl Lindberg.

  • Company founded: Arbon Earth is established by Magnus Willner, Carl Lindberg, Mai Thai, and Nanna Stranne.

  • First OceanPod tests are conducted in Sweden and the Atlantic in collaboration with universities and research institutes.

  • Collaboration begins with the University of the Azores for deep-sea verification.


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