CFS Raises $863mln in Series B2, Largest Fundraising in Deep Tech & Energy.

Thursday, Aug 28, 2025 6:11 am ET1min read

Commonwealth Fusion Systems (CFS) raised $863 million in a Series B2 round, the largest capital raise for a deep tech and energy company since 2021. This brings CFS' total capital raised to almost $3 billion, about one-third of the total capital invested in private fusion companies worldwide. The round attracted international investors from a range of sectors, solidifying CFS' leadership in the fusion industry.

Commonwealth Fusion Systems (CFS) has successfully raised $863 million in a Series B2 funding round, marking the largest capital raise for a deep tech and energy company since 2021. This significant investment brings CFS's total capital raised to nearly $3 billion, representing one-third of all private fusion industry investments globally [1].

The oversubscribed round attracted a diverse array of international investors, including Counterpoint Global (Morgan Stanley), Google, Galaxy Interactive (NASDAQ: GLXY), and prominent individual investors like Stanley Druckenmiller. The funds will be utilized to complete the SPARC fusion demonstration machine and advance the development of ARC, CFS's first commercial power plant in Virginia, targeted for operation in the early 2030s [1].

Strategic partnerships, such as those with Dominion Energy and Google, further underscore CFS's leadership in the fusion industry. Google has committed to purchasing half of the ARC plant's power output, while a Japanese consortium of 12 companies led by Mitsui & Co. and Mitsubishi Corporation also participated in the funding round [1].

CFS's expansion of its global footprint and the addition of investors from various sectors, including hedge funds, private equity firms, and leading individual investors, demonstrate the company's growing influence in the energy transition landscape. The company's advancements in high-temperature superconducting magnets and its execution velocity in constructing SPARC in Devens, Massachusetts, have solidified its position as a leader in commercial fusion power development [2].

The oversubscribed round validates CFS's progress in developing the most promising path to commercial fusion power. The company's strategic partnerships and significant investments highlight its potential to deliver clean, limitless energy and shape the future of global energy infrastructure.

References:
[1] https://www.stocktitan.net/news/GLXY/commonwealth-fusion-systems-raises-863-million-series-b2-round-to-cc9qrlljpk47.html
[2] https://www.prnewswire.com/news-releases/commonwealth-fusion-systems-raises-863-million-series-b2-round-to-accelerate-the-commercialization-of-fusion-energy-302540730.html

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