# Spiral Hydrogen

**Source:** https://www.startuphub.ai/startups/spiral-hydrogen
**Profile type:** Startup

> Deeptech startup developing bubble-free electrolysis technology for efficient green hydrogen production.

## About

Spiral Hydrogen is an Estonian-Dutch deeptech startup focused on revolutionizing green hydrogen production. They have developed a proprietary rotating, bubble-free electrolysis technology designed to significantly improve the efficiency of hydrogen generation. Unlike conventional electrolyzers that suffer from energy loss due to gas bubbles forming on electrodes, Spiral Hydrogen's approach routes gases through a porous electrode into a dedicated channel. This innovation enables efficiency levels above 90% and aims to lower the cost of green hydrogen production, making it commercially viable at scale. The company is transitioning from laboratory development to pilot deployment, with plans for a pilot electrolyzer at the Port of Rotterdam in partnership with SwitcH2. Their ultimate goal is to make green hydrogen competitive with fossil-based alternatives, supporting decarbonization across various heavy industries.

## Key facts

- **Slug:** spiral-hydrogen
- **Location:** Tallinn, Estonia
- **Founded:** 2022-01-01
- **Employees:** 7
- **Operating status:** Active
- **Total funding:** $3M
- **Sectors / tags:** Green Hydrogen, Electrolysis, Clean Energy, Deep Tech, Hardware
- **Social:**
  - LinkedIn: https://www.linkedin.com/company/spiral-hydrogen/

## Frequently asked

### What does Spiral Hydrogen do?

Spiral Hydrogen is an Estonian-Dutch deeptech startup focused on revolutionizing green hydrogen production. They have developed a proprietary rotating, bubble-free electrolysis technology designed to significantly improve the efficiency of hydrogen generation. Unlike conventional electrolyzers that suffer from energy loss due to gas bubbles forming on electrodes, Spiral Hydrogen's approach routes gases through a porous electrode into a dedicated channel. This innovation enables efficiency levels…

### What is Spiral Hydrogen's valuation?

StartupHub estimates Spiral Hydrogen's effective valuation at $10.6M (range $6.8M to $16.2M, 21% confidence), based on comparable companies in the sector.

### How much funding has Spiral Hydrogen raised?

Spiral Hydrogen has raised a total of $3M in funding. The most recent round on record is Pre-Seed.

### Where is Spiral Hydrogen headquartered?

Spiral Hydrogen is headquartered in Tallinn, Estonia.

### When was Spiral Hydrogen founded?

Spiral Hydrogen was founded in 2022.

### What industry does Spiral Hydrogen operate in?

Spiral Hydrogen operates in Green Hydrogen, Electrolysis, Clean Energy, Deep Tech, Hardware.

### How many employees does Spiral Hydrogen have?

Spiral Hydrogen has approximately 7 people on record.

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