Commonwealth Fusion Systems vs Helion
Commonwealth Fusion Systems vs Helion, 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: Commonwealth Fusion Systems is on 50/100 and Helion on 75/100.
Where each one leads
Commonwealth Fusion Systems
Leads on none of the measures we hold for both companies.
Helion
- our overall score: 75/100 against 50/100
- funding raised: $3.6B against $2.0B
At a glance
| Measure | Commonwealth Fusion Systems | Helion |
|---|---|---|
| What it is | Developing compact, high-field fusion power plants to provide clean, limitless energy. | Fusion energy startup aiming for commercial power generation. |
| Category | Clean Energy, Nuclear Fusion, Energy Storage, Climate Tech | Clean Energy, Fusion Power, Nuclear Fusion, Climate Tech |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | Not published | 2013 |
| Headquarters | Devens, United States | Everett, USA |
| Status | Active | Active |
Size, funding and growth
| Measure | Commonwealth Fusion Systems | Helion |
|---|---|---|
| Employees | Not published | 521 |
| Open roles | 70 | Not published |
| Total funding | $2.0B | $3.6B |
| Latest round | Series B2 | Series G |
| Valuation | Not published | $16B |
| LinkedIn followers | Not published | 57,103 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Commonwealth Fusion Systems | Helion |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 50/100 | 75/100 |
| Traction | 40/100 | 60/100 |
| Team | 10/100 | 70/100 |
| Community | Not published | 8/100 |
| Search visibility | 5/100 | 56/100 |
| Quality | 68/100 | 88/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (40/100) | F (39/100) |
| Domain ratingLink authority, 0-100 | 67/100 | 64/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Commonwealth Fusion Systems | Helion |
|---|---|---|
| Hosting | AWS | Not detected |
| CDN | CloudFront | Cloudflare |
| CMS | Not detected | Webflow |
| Frameworks | Next.js | Not detected |
| Analytics | Not detected | Google Analytics 4, Linkedin Insight |
Commonwealth Fusion Systems vs Helion: common questions
Which is better, Commonwealth Fusion Systems or Helion?
On our 0-100 score Helion rates higher (75/100 against 50/100). 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 Commonwealth Fusion Systems and Helion compare on the numbers?
Helion leads on our overall score (75/100 against 50/100), funding raised ($3.6B against $2.0B).
Read the full Commonwealth Fusion Systems review and pricing or the Helion review and pricing. You can also browse other Commonwealth Fusion Systems alternatives we track.