What is Commonwealth Fusion Systems?
Commonwealth Fusion Systems is at the forefront of developing compact, cost-effective tokamak fusion systems, leveraging high-temperature superconducting magnets. The company is actively manufacturing the SPARC machine, a critical step towards achieving commercially relevant net energy fusion, and is paving the way for the ARC fusion power plant. CFS is dedicated to delivering clean, abundant energy and combating climate change through scientific integrity and economically viable fusion energy solutions, collaborating with a global network of suppliers and researchers.
How much funding has Commonwealth Fusion Systems raised?
Commonwealth Fusion Systems has raised a total of $2.9B across 4 funding rounds:
Series A
$115M
Unspecified
$84M
Series B
$1.8B
Other Financing Round
$863M
Series A (2019): $115M with participation from Schooner Capital, Lowercase Capital, Breakthrough Energy Ventures, Starlight Ventures, Khosla Ventures, Eni, Moore Strategic Ventures, Safar Partners, The Engine, and Future Ventures
Unspecified (2020): $84M led by Devonshire Investors, Breakthrough Energy Ventures, Starlight Ventures, Khosla Ventures, Schooner Capital, ENI Next LLC, The Engine, Future Ventures, FMR LLC, Temasek, Equinor, Moore Strategic Ventures, and Safar Partners LLC
Series B (2021): $1.8B supported by FootPrint Coalition, Coatue, Tiger Global Management, and DFJ Growth
Other Financing Round (2025): $863M featuring MaC Venture Capital, MORGAN STANLEY, FFA Private Bank, Galaxy Interactive, HOF Capital, and Gigascale Capital
Key Investors in Commonwealth Fusion Systems
Breakthrough Energy Ventures
Breakthrough Energy Ventures (BEV) is a prominent investment firm backed by global business leaders, focused on investing in cutting-edge companies that will lead the world to net-zero emissions. They provide patient, risk-tolerant capital to support bold entrepreneurs in developing transformative clean energy innovations.
Khosla Ventures
Khosla Ventures is a venture capital firm that provides venture assistance and strategic advice to entrepreneurs working on breakthrough technologies. With significant capital under management, they focus on a broad range of areas including sustainable energy, AI, and semiconductors.
The Engine
The Engine, built by MIT, is a venture firm investing in 'Tough Tech' – transformative technologies addressing challenges in human health, climate change, and advanced systems. They aim to unlock massive opportunities for a more sustainable and resilient world.
What's next for Commonwealth Fusion Systems?
The substantial enterprise-level funding and recent strategic investment signal a strong market confidence in Commonwealth Fusion Systems' mission to commercialize fusion energy. This capital infusion is expected to accelerate the development and deployment of their SPARC and ARC projects, bringing the world closer to a future powered by clean, virtually limitless energy. The company's focus on high-temperature superconducting magnets positions it to overcome key challenges in fusion power generation, driving innovation in the clean energy sector and potentially reshaping global energy landscapes.
See full Commonwealth Fusion Systems company page
