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London, UKFounded 202118+ employeesPrivate
$7M raisedSeed· last: grant (Aug 2025)· 6 rounds

Seabound offers an onboard carbon capture system for ships that traps CO₂ emissions as solid carbonate pebbles. It features a retrofittable, compact design that captures between 25 % and 95 % of CO₂, is fully automated, and can be monitored remotely. Ships fitted with the system can offload the captured carbonate at port, where it is recycled for reuse or sequestered or used in fuel production.

Founders

YC W22

Hiring Pitch

Seabound is an award-winning startup decarbonizing global shipping by capturing CO₂ emissions directly onboard ships. To date, we’ve completed two world-first pilots; raised >$10M in equity and grant funding from top investors including Lowercarbon Capital, Collaborative Fund, Y Combinator, and Eastern Pacific Shipping; and partnered with leading shipping and industrial players. Having recently completed our first full-scale commercial systems, Seabound is now entering its commercialization and scale-up phase.

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