Commonwealth Fusion Systems
Commonwealth Fusion Systems
Agent40Agent Readiness: 40/100. Below median. Measured by StartupHub.ai. Median 41.Developing compact, high-field fusion power plants to provide clean, limitless energy.
About
Commonwealth Fusion Systems (CFS) is a spin-out from MIT's Plasma Science and Fusion Center, focused on commercializing fusion energy. They are developing compact, high-field fusion power plants using high-temperature superconducting (HTS) magnets to achieve net energy gain, aiming to deliver a new source of clean, safe, and limitless energy to the grid.
Key facts
At-a-glance profile data
- Website
- cfs.energy
- Headquarters
- Devens, United States
- Total funding
- $1.1B
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 28 Aug 2025 | Undisclosed round | $863M | Nvidia, Google, Breakthrough Energy Ventures |
| 1 Dec 2021 | Undisclosed round | $2M | Coatue, Tiger Global |
| 9 Mar 2020 | Undisclosed round | $84M | Temasek Holdings |
| 23 Oct 2019 | Undisclosed round | $115M | Temasek Holdings |
| 12 Jun 2018 | Undisclosed round | $50M | Eni |
Tech stack
Detected on cfs.energy and in its job posts, last scanned 19 Sept 2026. Run your own scan
- Frontend
- Next.js
- Backend
- Python
- CDN
- AWS CloudFront
- Hosting
- AWS, WP Engine
- Email provider
- Mimecast, Google Workspace
- Email marketing
- Mailchimp
- Hiring platform
- Lever
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Frequently asked
How much funding has Commonwealth Fusion Systems raised?
Commonwealth Fusion Systems has raised a total of $1.1B in funding.