SeaO2 develops Direct Ocean Capture (DOC) technology that extracts CO2 from seawater and returns carbon-free water to the ocean, enhancing the ocean's ability to absorb atmospheric CO2. The company plans to scale from prototype to a pilot plant with an expected annual capacity of 250 tons of CO2, scheduled for launch in summer 2025. SeaO2 intends to use recent funding to accelerate technology development, expand the team, and implement a comprehensive Monitoring, Reporting, and Verification (MRV) system. It has set removal targets of one megaton of CO2 by 2030 and one gigaton by 2045. The company has established strategic partnerships with XPRIZE Carbon Removal, TU Delft, Klarna, Wetsus, and Redstack and participated in a carbon removal project with Paebbl in the Wadden Sea. Financially, SeaO2 raised over €2m in the reported funding round to support these plans. SeaO₂ is an Amsterdam-headquartered startup (founded in 2021) building ocean-based CO₂ removal systems that lower seawater pH with electrodes across a membrane to liberate gaseous CO₂. The process treats water offshore, releases CO₂ which is captured, and then returns decarbonized water to the surface to re-equilibrate. Captured CO₂ is intended for permanent underground storage. The company operates a prototype in the North Sea launching from the REDstack renewable energy plant at the Afsluitdijk dam and plans a larger pilot by the end of 2023. The initial prototype can extract about one ton of carbon per year; the next pilot is slated to extract 250 tons per year. SeaO₂’s stated ambition is to remove 1 gigaton of carbon by 2035. Ledgy has partnered with and made an early commercial pre-purchase to help validate SeaO₂’s commercial model and support its R&D.

Total raised

$2M

Funding rounds

2

Latest round

Equity

Latest activity

Nov 2024