Helion vs Spiral Hydrogen
Helion vs Spiral Hydrogen, compared side by side on 16 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Helion is on 75/100 and Spiral Hydrogen on 46/100.
Where each one leads
Helion
- our overall score: 75/100 against 46/100
- headcount: 521 against 7
- funding raised: $3.6B against $2.7M
- LinkedIn following: 57,103 against 809
Spiral Hydrogen
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Helion | Spiral Hydrogen |
|---|---|---|
| What it is | Fusion energy startup aiming for commercial power generation. | Deeptech startup developing bubble-free electrolysis technology for efficient green hydrogen production. |
| Category | Clean Energy, Fusion Power, Nuclear Fusion, Climate Tech | Green Hydrogen, Electrolysis, Clean Energy, Deep Tech |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2013 | 2022 |
| Headquarters | Everett, USA | Tallinn, Estonia |
| Status | Active | Active |
Size, funding and growth
| Measure | Helion | Spiral Hydrogen |
|---|---|---|
| Employees | 521 | 7 |
| Total funding | $3.6B | $2.7M |
| Latest round | Series G | Pre-Seed |
| Valuation | $16B | Not published |
| LinkedIn followers | 57,103 | 809 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Helion | Spiral Hydrogen |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 75/100 | 46/100 |
| Traction | 60/100 | 41/100 |
| Team | 70/100 | 60/100 |
| Community | 8/100 | Not published |
| Search visibility | 56/100 | 39/100 |
| Quality | 88/100 | 48/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (39/100) | Not published |
| Domain ratingLink authority, 0-100 | 64/100 | Not published |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Helion | Spiral Hydrogen |
|---|---|---|
| CDN | Cloudflare | Not detected |
| CMS | Webflow | Not detected |
| Analytics | Google Analytics 4, Linkedin Insight | Not detected |
Helion vs Spiral Hydrogen: common questions
Which is better, Helion or Spiral Hydrogen?
On our 0-100 score Helion rates higher (75/100 against 46/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 16 data points above: read the rows that match what you are buying for.
How do Helion and Spiral Hydrogen compare on the numbers?
Helion leads on our overall score (75/100 against 46/100), headcount (521 against 7), funding raised ($3.6B against $2.7M), LinkedIn following (57,103 against 809).
Read the full Helion review and pricing or the Spiral Hydrogen review and pricing. You can also browse other Helion alternatives we track.