Proxima Fusion Secures €411 Million to Advance Commercial Fusion
Proxima Fusion, a Germany-based fusion energy company, has announced the successful completion of a €411 million ($468 million) financing round, marking one of the largest private technology investments in Europe in 2026 and the biggest-ever funding round for a European fusion company. The investment places Proxima Fusion at a valuation of €2.4 billion ($2.7 billion), positioning the company as Europe’s most highly funded private fusion venture and strengthening its mission to accelerate the development of commercial fusion power.
The funding round was led by XTX Ventures and East X Ventures, with strategic participation from major industrial and technology players including RWE and Google. Additional investors joining the round include KfW Capital, SPRIND, and Burda Principal Investments.
The financing also attracted continued support from Proxima Fusion’s existing investor base, including Plural, UVC Partners, Balderton Capital, Cherry Ventures, DST Global, Brevan Howard, Lightspeed Venture Partners, and several other institutional investors. The broad participation highlights growing confidence in fusion energy as a transformative technology capable of reshaping the global energy landscape.
Major Strategic Investment in Europe’s Fusion Future
The investment from RWE represents a significant milestone in Proxima Fusion’s growth strategy. The German energy company became an investor shortly after entering into an agreement with Proxima to collaborate on the development of the first stellarator fusion power plant at the site of a former nuclear fission facility in Gundremmingen, Bavaria.
The partnership brings together Proxima’s advanced fusion technology expertise with RWE’s experience in energy infrastructure, power generation and large-scale industrial projects. The collaboration aims to demonstrate how existing energy sites can potentially be transformed into locations for next-generation clean energy production.
Google’s participation further demonstrates increasing interest from global technology companies in fusion energy. The company’s investment reflects the growing recognition that fusion could become a long-term source of abundant, reliable and carbon-free electricity. As demand for clean energy continues to rise due to industrial expansion, electrification and artificial intelligence-driven computing needs, fusion is increasingly viewed as a strategic solution for future energy security.
Building the Bridge from Fusion Research to Commercial Power
The newly secured capital will support the development of Alpha, Proxima Fusion’s net-energy stellarator demonstrator project located near Munich, Germany. The Alpha project represents a critical step between decades of scientific fusion research and the eventual deployment of commercial fusion power plants.
Proxima is developing Alpha in collaboration with the state of Bavaria, the Max Planck Institute for Plasma Physics and RWE. The project is designed to validate essential technologies required for stellarator-based fusion systems and accelerate progress toward the construction of the world’s first commercial fusion power plant later in the decade.
Unlike traditional fusion approaches that rely on tokamak reactor designs, stellarators use complex magnetic configurations to maintain plasma stability continuously. This technology has attracted significant scientific interest because of its potential advantages in operational stability and long-duration energy production.
Proxima Fusion aims to combine advanced engineering, high-temperature superconducting materials and modern manufacturing methods to overcome historical challenges associated with stellarator development. The company believes that industrial-scale execution will be essential to transforming fusion from a scientific achievement into a commercially viable energy source.
“Europe is racing with the United States and China to get to the first fusion power plant. Proxima’s financing demonstrates that Europe can not only invent breakthrough technologies, but also build globally competitive companies around them. Investors recognise both the urgency and the opportunity of what we’re doing and are backing us to develop a generational energy technology company,” said Dr. Francesco Sciortino, Co-Founder and CEO of Proxima Fusion.
Rapid Growth and Strong Public-Private Support
Since its founding less than three years ago, Proxima Fusion has raised more than €650 million ($740 million), including €95 million in public grants. The company’s latest financing round exceeded its initial target of matching Bavaria’s planned €400 million public funding commitment toward the fusion development roadmap.
The successful capital raise demonstrates how targeted government support can attract substantial private investment into emerging strategic industries. Proxima’s progress reflects a broader European effort to strengthen technological independence, improve energy resilience and compete globally in advanced energy innovation.
The company’s roadmap combines public-sector research capabilities with private-sector investment and industrial expertise. By connecting scientific institutions, government support and commercial partners, Proxima aims to create a pathway for Europe to become a leader in fusion energy development.
Expanding Engineering and Manufacturing Capabilities
Following the completion of the financing round, Proxima Fusion will focus on several key technical priorities. These include completing the Stellarator Model Coil, expanding production capabilities for high-temperature superconducting (HTS) cables and magnets, and developing advanced engineering and manufacturing systems required for future stellarator power plants.
The company also plans to expand its workforce significantly, with new hiring expected across engineering, manufacturing and operational roles. These additions will support the accelerated development of Alpha and strengthen Proxima’s ability to transition from research-driven innovation to industrial-scale execution.
With record-breaking private investment, strategic partnerships and growing international attention, Proxima Fusion is positioning itself at the forefront of Europe’s fusion energy movement. The company’s latest funding milestone signals increasing confidence that fusion technology could play a central role in delivering clean, secure and sustainable energy for future generations.
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