This round of capital is the largest raised among deep tech and energy companies since CFS' $1.8 billion Series B round in 2021. The almost $3 billion that CFS has raised to date is about one-third of ...

DEVENS, Mass., Aug. 28, 2025 /PRNewswire/ -- Commonwealth Fusion Systems (CFS), the largest and leading private fusion company, today announced that it raised $863 million in a Series B2 fundraising ...

Commonwealth Fusion Systems has struck an agreement to sell electricity from its future power plant in Virginia to Google, the companies announced on Monday. The deal comes even though Commonwealth ...

A rendering of the Commonwealth Fusion Systems proposal for Chesterfield County. (Courtesy of Commonwealth Fusion Systems) Virginia could soon make history as the home of the world’s first nuclear ...

“AI factories and data centers require gigawatts of electric power,” said Siemens CEO Roland Busch today at CES 2026. “What if we had an energy source that was clean, safe, affordable, and practically ...

The licensing and manufacturing agreement allows Type One Energy to efficiently design proprietary stellarator fusion magnets by levering CFS' leadership in the development and manufacturing of some ...

As part of this initiative, CFS will use the data generated and compiled through the use of the Siemens Xcelerator portfolio of industrial software to build its SPARC fusion machine. A visual ...

DEVENS, Mass., Jan. 12, 2026 /PRNewswire/ -- Commonwealth Fusion Systems (CFS), the largest and leading private fusion company, today announced that Stephane Bancel, the Chief Executive Officer of ...

CFS says the use of this digital twin will help accelerate its efforts to commercialize fusion energy, the same source of energy powering the sun. Commonwealth Fusion’s headquarters in Devens sold for ...

The DOE award demonstrates that the results of rigorous performance tests for CFS' full-scale toroidal field (TF) magnet, a key component at the heart of the company's SPARC fusion machine, have been ...