Identity graph
Commonwealth Fusion Systems headquarters, locations and relationships
- Legal name
- Commonwealth Fusion Systems LLC
- Industry
- Renewable Energy
- Founded
- 2018
- Phone
- +1 781 583 3100
- Website
- cfs.energy
Commonwealth Fusion Systems office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Cambridge | Massachusetts | United States | Headquarters |
| Devens | Massachusetts | United States | Office |
| Milpitas | California | United States | Office |
- Parent company
- Commonwealth Fusion Systems is part of Massachusetts Institute of Technology (MIT).
- Competitors
- Commonwealth Fusion Systems competes with 12 organizations in the GraphIQ.ai identity graph.
Verified from public filings, company websites and news · Methodology
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About Commonwealth Fusion Systems
Commonwealth Fusion Systems is headquartered in Cambridge, Massachusetts, United States. Founded in 2018, the company has 4 recorded locations and employs approximately 1,000 people worldwide.
Where is Commonwealth Fusion Systems's main office?
Commonwealth Fusion Systems's main headquarters office is located at 148 Sidney Street, Cambridge, Massachusetts 02139, United States. This is the company's primary corporate address.
Commonwealth Fusion Systems regional offices
Beyond its headquarters in Cambridge, Commonwealth Fusion Systems has recorded locations in United States.
Commonwealth Fusion Systems contact information
The main switchboard for Commonwealth Fusion Systems headquarters can be reached at +1 781 583 3100. Official website: cfs.energy.
What does Commonwealth Fusion Systems do?
Commonwealth Fusion Systems is an American company aiming to build a compact fusion power plant based on the ARC tokamak concept.
One entity, every stage
Put Commonwealth Fusion Systems to work across your revenue bowtie
- Target Define the market Build the account list from companies shaped like your best customers, Commonwealth Fusion Systems included. Fingerprint search
- Cover Plan territories Commonwealth Fusion Systems's 4 locations roll up to one account, so it lands in one territory, once. Territory planning
- Engage Act on timing Leadership changes, funding and M&A arrive linked to the account, not a loose headline. Signal monitoring
- Convert Close on a resolved record Inbound and closed-won attach to one CRM record, with no duplicates to merge. CRM enrichment
- Retain Ground every answer Customer teams and AI agents answer from the same entity, with a source and a date. AI agent data layer
- Expand Find the next buyer inside Follow subsidiaries and divisions to the next team that can buy. Account expansion
About the source
What is GraphIQ.ai?
A B2B identity graph. It resolves each organization into one verified entity and maps its parent and subsidiaries, employees, competitors and news signals. Revenue teams use it in the product; AI agents query it through the REST API and MCP server.
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Commonwealth Fusion Systems: frequently asked questions
Where is Commonwealth Fusion Systems headquarters?
148 Sidney Street, Cambridge, Massachusetts 02139, United States.
What is Commonwealth Fusion Systems's phone number?
+1 781 583 3100 (headquarters).
When was Commonwealth Fusion Systems founded?
2018.
How many employees does Commonwealth Fusion Systems have?
About 1,000, as of October 2026 (GraphIQ.ai estimate).
How many offices does Commonwealth Fusion Systems have?
4 locations, including Devens, Milpitas.
Questions about GraphIQ.ai
Is GraphIQ.ai a list of companies like a spreadsheet?
No. Each organization resolves to one verified entity linked to its parent, subsidiaries, people and signals, so Commonwealth Fusion Systems here is the same Commonwealth Fusion Systems in your CRM, territory plan and agent answers.
Where does this Commonwealth Fusion Systems data come from?
Public filings, company websites and news, resolved to one entity and continuously updated.