Helion vs Zap Energy
Helion vs Zap Energy, compared side by side on 19 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 Zap Energy on 61/100.
Where each one leads
Helion
- our overall score: 75/100 against 61/100
- domain rating: 64/100 against 48/100
- funding raised: $3.6B against $324M
Zap Energy
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Helion | Zap Energy |
|---|---|---|
| What it is | Fusion energy startup aiming for commercial power generation. | Developing advanced fusion and fission nuclear energy technologies for carbon-free power. |
| Category | Clean Energy, Fusion Power, Nuclear Fusion, Climate Tech | Clean Energy, Nuclear Energy, Fusion, Fission |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2013 | 2017 |
| Headquarters | Everett, USA | Everett, USA |
| Status | Active | Active |
Size, funding and growth
| Measure | Helion | Zap Energy |
|---|---|---|
| Employees | 521 | Not published |
| Total funding | $3.6B | $324M |
| Latest round | Series G | Series D |
| Valuation | $16B | $1.1B |
| LinkedIn followers | 57,103 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Helion | Zap Energy |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 75/100 | 61/100 |
| Traction | 60/100 | 40/100 |
| Team | 70/100 | 70/100 |
| Community | 8/100 | Not published |
| Search visibility | 56/100 | 19/100 |
| Quality | 88/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (39/100) | D (40/100) |
| Domain ratingLink authority, 0-100 | 64/100 | 48/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Helion | Zap Energy |
|---|---|---|
| Hosting | Not detected | AWS |
| CDN | Cloudflare | CloudFront |
| CMS | Webflow | Not detected |
| Frameworks | Not detected | Tailwind CSS |
| Analytics | Google Analytics 4, Linkedin Insight | Google Analytics 4 |
Helion vs Zap Energy: common questions
Which is better, Helion or Zap Energy?
On our 0-100 score Helion rates higher (75/100 against 61/100). 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 19 data points above: read the rows that match what you are buying for.
How do Helion and Zap Energy compare on the numbers?
Helion leads on our overall score (75/100 against 61/100), domain rating (64/100 against 48/100), funding raised ($3.6B against $324M).
Read the full Helion review and pricing or the Zap Energy review and pricing. You can also browse other Helion alternatives we track.