Spiral Hydrogen
PrivateLast Round
Pre Seed
Apr 30, 2026
Total Funding Raised
$3.16M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Spiral Hydrogen is a deep-tech company that is developing a rotating, bubble-free electrolyser aimed at improving green hydrogen production efficiency.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Alternative Fuels, Clean Manufacturing
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting, Government Contracts
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Spiral Hydrogen Comparables
Compare Spiral Hydrogen with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Hysata | 80% | |
| NewTrace | 79% | |
| Peregrine Hydrogen Inc. | 79% | |
Spiral Hydrogen Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Pre Seed | Apr 30, 2026 | ||||
| Grant | Apr 1, 2026 | ||||
| Grant | Feb 1, 2026 | ||||
| Accelerator | Jun 20, 2025 | ||||
| Grant | May 23, 2025 |
Spiral Hydrogen Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Superangel | Pre Seed |
| Norrsken Foundation | Pre Seed |
| European Space Agency | Accelerator |
| ESA BIC Estonia | Accelerator |
| byFounders | Pre Seed |
| City of Tartu | Accelerator |
| Prototron | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- Apr 30, 2026
$3M round led by byFounders
- Apr 1, 2026
Secured $84K in grant funding.
Spiral Hydrogen Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Spiral Hydrogen's valuation, stock price, and market status.