Commonwealth Fusion Systems
Latest round
- Series B
Last raised
- Aug 2025
Total raised
- $2.9B
Investors
- 54
About Commonwealth Fusion Systems
Based in Massachusetts, US, and founded in 2018 by CEO Bob Mumgaard and CSO Brandon Sorbom, Commonwealth Fusion Systems LLC, a spin-off of MIT develops a suite of HTS (high-temperature superconductor) magnet technology that enables enterprises to produce energy by combining an inexhaustible power plant with rare-earth barium copper oxide.K. Lines, Nippon Telegraph and Telephone, Sumitomo Mitsui Banking Corporation, Sumitomo Mitsui Trust Bank Kansai Electric Power, Brevan Howard Investment Management, Morgan Stanley, FFA Private Bank, Galaxy Asset Management, Gigascale Capital, HOF Capital, Neva, NVentures, Planet First Partners, and Woori Venture Partners. Commonwealth Fusion Systems develops fusion energy systems through rare-earth barium copper oxide superconductor technology. In addition, the company is focusing on providing new yttrium barium copper oxide high-temperature superconducting magnet technologies. The company has developed HTS (high-temperature semiconductors) technology to build high-field large-bore superconducting magnets. The company has collaborated with MIT’s Plasma Science and Fusion Center (PSFC) to design and build SPARC, which is net energy compact fusion system.
Who invested in Commonwealth Fusion Systems
54 investors across 6 rounds
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Questions about Commonwealth Fusion Systems
Who invested in Commonwealth Fusion Systems?
Commonwealth Fusion Systems has 54 investors on record across 6 venture rounds. Sign up free to see every VC on the cap table and the rounds they joined.
How much funding has Commonwealth Fusion Systems raised?
Commonwealth Fusion Systems has raised 6 venture rounds. Sign up free to see how much each round raised and the total.
When did Commonwealth Fusion Systems last raise money?
Commonwealth Fusion Systems's most recent round on record is a Series B, in Aug 2025.
What does Commonwealth Fusion Systems do?
Based in Massachusetts, US, and founded in 2018 by CEO Bob Mumgaard and CSO Brandon Sorbom, Commonwealth Fusion Systems LLC, a spin-off of MIT develops a suite of HTS (high-temperature superconductor) magnet technology that enables enterprises to produce energy by combining an inexhaustible power plant with rare-earth barium copper oxide.
Where is Commonwealth Fusion Systems headquartered?
Commonwealth Fusion Systems is headquartered in Devens, US.
Which VCs invest in companies like Commonwealth Fusion Systems?
Among active investors with capital left to deploy, Andreessen Horowitz, Founders Fund, Accel and Thrive Capital back power & utilities companies at Commonwealth Fusion Systems's stage. Their profiles are linked below.
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