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Affordable Giga-ton scalable Carbon Dioxide Removal Technology by leveraging our oceans carbon removal power.
SeaO2 develops and operates electrochemical Direct Ocean Capture (DOC) technology that extracts CO₂ directly from seawater using only renewable electricity and seawater. Their process uses electrochemistry and vacuum to alter the carbonate equilibrium in ocean water, enabling CO₂ extraction in gas form which can then be permanently stored in geological formations or converted into products like mineralized concrete. The company offers both carbon dioxide removal (CDR) services where CO₂ is permanently sequestered underground, and carbon utilization options where the removed carbon is converted into chemicals or fuels.
Founded in 2021, SeaO2 emerged from technology originally developed in laboratories at Delft University of Technology and Wetsus. The company's mission is to safeguard the planet by combatting global warming through actively reducing CO₂ concentration in both oceans and the atmosphere. Their approach is driven by the principle that "it is easier to extract CO₂ from water than from the air," as explained by their Scientific Co-founder David Vermaas.
SeaO2's technology addresses multiple environmental challenges simultaneously, making it a significant player in climate solutions. Beyond carbon removal, their process helps deacidify oceans by restoring pH levels and promoting marine biodiversity, while the decarbonized water they return to the ocean can re-absorb CO₂ from the atmosphere. The company positions their technology as affordable and gigaton-scalable, leveraging the ocean's natural carbon removal power to create meaningful climate impact.
SeaO2's business model creates impact by leveraging the ocean's natural carbon absorption capacity, extracting CO₂ from seawater where carbon concentration is over 100 times higher than in air. They monetize this through selling carbon credits to help companies offset irreducible emissions, while also offering carbon utilization services where extracted CO₂ is converted into valuable products like chemicals and fuels.
The company's operations result in multiple environmental benefits including permanent CO₂ removal from both oceans and atmosphere, ocean deacidification through pH restoration, and enhanced marine biodiversity. Their process returns decarbonized water to the ocean surface where it continues to absorb atmospheric CO₂, creating a continuous cycle of carbon removal while addressing ocean acidification that has occurred since the industrial revolution.
Remove 1 Gigaton of carbon by 2045

Giga-ton Scalable Technology
Utilizes ocean as a powerful source for CO₂ removal.
Renewable Energy Use
Relies solely on renewable electricity and seawater for CO₂ extraction.
Biodiversity Promotion
Aims to restore oceanic pH levels and support marine biodiversity.
Focus areas
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