SeaO2
PrivateLast Round
Grant
Oct 24, 2025
Total Funding Raised
$4.37M
Company Overview
SeaO2 operates in Energy & Sustainability and is based in Amsterdam. Its latest recorded funding round was a Grant round in October 2025.
SeaO2 is a climate technology company that provides electrochemical direct ocean capture technology for carbon dioxide removal. The technology extracts dissolved carbon dioxide from seawater, which enables the ocean to absorb more CO2 from the atmosphere. The captured CO2 can be permanently stored or used in other products.
Sector
Energy & Sustainability
Verticals
Carbon Capture, Water Treatment
Business Model
B2B
Customer Profile
Services & Consulting, Government Contracts
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
SeaO2 Comparables
Compare SeaO2 with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Captura Corp | 89% | |
| Ebb Carbon | 86% | |
| Brineworks | 86% |
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SeaO2 Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Grant | Oct 24, 2025 | ||||
| Grant | Jul 14, 2025 | ||||
| Seed | Nov 4, 2024 |
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Key People
Founding team and executive leadership
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SeaO2 Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| CarbonFix | Seed |
| Future Tech Ventures | Seed |
| Transavia Ventures | Seed |
| Climate Intervention Environmental Impact Fund | Grant |
| DOEN Participaties | Seed |
| NOM (Investment and Development Company for the Northern Netherlands) | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Nov 4, 2024
$2.38M raised in Seed round.
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Recent news
Latest coverage and updates
- declares_bankruptcyOct 2, 2026
SeaO2, a Netherlands-based direct ocean capture company, declared bankruptcy a few months before Oct 2nd '26 because capital did not arrive fast enough to start operations.
- is_developingOct 2, 2026
Founded in 2021 in the Netherlands, SeaO2 embarked on developing affordable and scalable DOC technology that uses renewable electricity to extract CO2 directly from seawater.
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SeaO2 Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about SeaO2's valuation, stock price, and market status.
Is SeaO2 a public or private company?
SeaO2 is a private company.
What is the current stock price of SeaO2?
SeaO2 is a private company, so its shares have no public market price. Caplight tracks SeaO2's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is SeaO2 worth (valuation)?
Valuation information for SeaO2 is not publicly available.
Can I buy SeaO2 stock?
SeaO2 shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was SeaO2's last funding round?
SeaO2's most recent funding round was Grant on October 24, 2025.
Who are the main investors in SeaO2?
Key investors in SeaO2 include Future Tech Ventures, DOEN Participaties.
Will SeaO2 IPO soon?
No public IPO plans have been announced for SeaO2.
How can I track SeaO2 secondary market activity?
Caplight tracks bids, offers, and trades in SeaO2's shares on secondary markets.