Cocoon Carbon
PrivateLast Round
Series A
Mar 18, 2026
Total Funding Raised
$21.4M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Cocoon Carbon operates in Energy & Sustainability and is based in London. Its latest recorded funding round was a Series A round in March 2026.
Cocoon Carbon is a climate tech company that provides modular technology to repurpose slag from electric arc steel furnaces into a low-carbon supplementary cementitious material for the concrete industry.
Sector
Energy & Sustainability
Verticals
Sustainable Materials, Circular Economy, Clean Manufacturing, Construction Tech
Business Model
B2B
Customer Profile
Revenue Share, Services & Consulting
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Cocoon Carbon Comparables
Compare Cocoon Carbon with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Concrete4Change | 34% | |
| Neustark | 34% | |
| Brimstone | 34% |
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Cocoon Carbon Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Mar 18, 2026 | ||||
| Pre Seed | May 21, 2024 | ||||
| Grant | May 1, 2024 | ||||
| Accelerator | Nov 1, 2023 |
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Key People
Founding team and executive leadership
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Cocoon Carbon Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Gigascale Capital | Series A, Pre Seed |
| Wireframe Ventures | Series A, Pre Seed |
| Innovate UK | Grant |
| Celsius Industries | Series A, Pre Seed |
| 2150.VC | Series A |
| Wireframe Ventures | Pre Seed, Series A |
| Wireframe Ventures | Series A |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Oct 21, 2026
Grew 25% quarter-over-quarter, from 20 to 25 employees.
- Oct 14, 2026
Grew 25% QoQ, from 20 to 25 employees.
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Cocoon Carbon 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 Cocoon Carbon's valuation, stock price, and market status.
Is Cocoon Carbon a public or private company?
Cocoon Carbon is a private company.
What is the current stock price of Cocoon Carbon?
Cocoon Carbon is a private company, so its shares have no public market price. Caplight tracks Cocoon Carbon's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Cocoon Carbon worth (valuation)?
Valuation information for Cocoon Carbon is not publicly available.
Can I buy Cocoon Carbon stock?
Cocoon Carbon shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Cocoon Carbon's last funding round?
Cocoon Carbon's most recent funding round was Series A on March 18, 2026.
Who are the main investors in Cocoon Carbon?
Key investors in Cocoon Carbon include Gigascale Capital, Wireframe Ventures, Celsius Industries, 2150.VC, SOSV.
Will Cocoon Carbon IPO soon?
No public IPO plans have been announced for Cocoon Carbon.
How can I track Cocoon Carbon secondary market activity?
Caplight tracks bids, offers, and trades in Cocoon Carbon's shares on secondary markets.