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 has made measurable progress toward its goal of building a practical fusion reactor that generates carbon-free electricity. Explore the 2023 list of 15 Climate Tech Companies to Watch.

DEVENS, Mass., Dec. 18, 2025 /PRNewswire/ -- Commonwealth Fusion Systems (CFS), the leading and largest commercial fusion energy company, today announced that it's coming to CES, the world's largest ...

The MarketWatch News Department was not involved in the creation of this content. As part of this initiative, CFS will use the data generated and compiled through the use of the Siemens Xcelerator ...

The above button links to Coinbase. Yahoo Finance is not a broker-dealer or investment adviser and does not offer securities or cryptocurrencies for sale or facilitate trading. Coinbase pays us for ...

Commonwealth Fusion Systems, the MIT startup racing to build the world’s first working fusion energy device, said on Thursday it had raised $863 million from investors including Google, Nvidia, and ...

Commonwealth Fusion Systems said on Thursday it would sell high-temperature superconducting magnets to Realta Fusion, the second in a string of deals that suggests the company will lean heavily on its ...

Commonwealth Fusion Systems and MIT’s Plasma Science and Fusion Center (PSFC) have demonstrated a magnet with a record-breaking 20 Tesla magnetic field. This is the core technology that they planned ...

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 ...