Commonwealth Fusion Systems

Fact sheet

• Founded in 2018↗ First commercial fusion plant nears construction in US, Commonwealth CEO says By Reuters↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems - Products, Competitors, Financials, Employees, Headquarters Locations↗ Home | Commonwealth Fusion Systems
• HQ in Devens, Massachusetts, USA↗ "Nuclear fusion power generation is now a matter of timing and scale"...Which Korean company will join the fusion first sulfur company?[Maple Interview] - MK · 2026-07-19↗ First commercial fusion plant nears construction in US, Commonwealth CEO says By Reuters↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems - Products, Competitors, Financials, Employees, Headquarters Locations↗ Home | Commonwealth Fusion Systems
• Total funding of approximately $3 billion↗ First commercial fusion plant nears construction in US, Commonwealth CEO says By Reuters↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems - Products, Competitors, Financials, Employees, Headquarters Locations↗ Home | Commonwealth Fusion Systems
• Key technology: high-temperature superconducting (HTS) magnets↗ First commercial fusion plant nears construction in US, Commonwealth CEO says By Reuters↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems - Products, Competitors, Financials, Employees, Headquarters Locations↗ Home | Commonwealth Fusion Systems
• Key products: SPARC demonstration machine, ARC fusion power plant↗ First commercial fusion plant nears construction in US, Commonwealth CEO says By Reuters↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems - Products, Competitors, Financials, Employees, Headquarters Locations↗ Home | Commonwealth Fusion Systems
• Notable partners: MIT, Eni, Google, US Department of Energy↗ "Nuclear fusion power generation is now a matter of timing and scale"...Which Korean company will join the fusion first sulfur company?[Maple Interview] - MK · 2026-07-19↗ First commercial fusion plant nears construction in US, Commonwealth CEO says By Reuters↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems↗ Commonwealth Fusion Systems - Products, Competitors, Financials, Employees, Headquarters Locations↗ Home | Commonwealth Fusion Systems
• First international partner in UKAEA's LIBRTI (Lithium Breeding Tritium Innovation) program, a £220M UK government initiative↗ CFS named international partner in UKAEA’s LIBRTI program

Connections

• Gauss Fusion — Gauss Fusion and Commonwealth Fusion Systems co-paneled at the FIA 2026 Global Fusion Industry Report launch, representing competing magnetic confinement fusion approaches.↗ In the News: FIA Launches the 2026 Global Fusion Industry Report in New York City, Washington, D.C., and London - Fusion Industry Association
• Google — Notable partner in fusion technology development.↗ Home | Commonwealth Fusion Systems
• Helion Energy — Helion Energy and Commonwealth Fusion Systems are competing players in the private fusion industry, both among the top fundraisers in the past year.↗ Global Investments In Nuclear Fusion Surge 69% To $4.5B | ZeroHedge
• Inertia Enterprises — Inertia Enterprises and Commonwealth Fusion Systems are among the top recipients of the record $4.48B in global fusion investment reported for the past year.↗ Fusion energy company opens research HQ in Livermore - Pleasanton Weekly
• Proxima Fusion — Proxima Fusion and Commonwealth Fusion Systems are competing players in the private fusion industry, both among the top fundraisers in the past year.↗ Global Investments In Nuclear Fusion Surge 69% To $4.5B | ZeroHedge
• U.S. Department of Energy — Notable partner in fusion technology development.↗ Home | Commonwealth Fusion Systems
• Zap Energy — Zap Energy and Commonwealth Fusion Systems are listed as competing players in the global nuclear fusion market.↗ An American machine fires 500,000 amps down a column of gas twelve times a minute, twenty times the current of a lightning bolt, into a chamber the size of a water heater, and the fusion company that built it is now selling a fission reactor based on a Japanese design nobody ever finished

Recent developments

• CFS CEO Bob Mumgaard identified South Korea as a key pillar of the global fusion supply chain in an interview with Maeil Business, signaling the company's intent to expand international supply-chain partnerships into South Korea.

  Read more ↗mk.co.kr19 Jul

• Commonwealth Fusion Systems has been named the first international partner in the UK Atomic Energy Authority's (UKAEA) LIBRTI (Lithium Breeding Tritium Innovation) program, a £220 million UK government-funded initiative focused on tritium breeding technology.

  Read more ↗h2-tech.com17 Jul

• Linked to Helion Energy: Helion Energy and Commonwealth Fusion Systems are competing players in the private fusion industry, both among the top fundraisers in the past year.

  Read more ↗zerohedge.com16 Jul

• Linked to Proxima Fusion: Proxima Fusion and Commonwealth Fusion Systems are competing players in the private fusion industry, both among the top fundraisers in the past year.

  Read more ↗zerohedge.com16 Jul

• CFS led all fusion companies in financing over the past year with $863 million raised, ahead of Proxima Fusion ($518M), Helion Energy ($465M), and Inertia Enterprises ($450M), according to a new industry report tracking $4.5 billion in total private fusion investment.

  Read more ↗energynews.pro15 Jul

• Commonwealth Fusion Systems raised $863 million in a Series B2 round in August 2025, bringing its total funding to nearly $3 billion. The round was oversubscribed and backed by tech heavyweights and PE firms.

  Read more ↗zerohedge.com16 Jul

• SPARC reactor reached approximately 75% completion as of mid-2026, keeping the project on track toward its ~2027 net energy gain demonstration target.

  Read more ↗folsomfelines.org14 Jul

Links