Insider Brief
- Marvel Fusion extended its Series B funding round by €50 million to a total of €113 million, making it the best-funded among nuclear fusion companies in Europe.
- The funding supports Marvel Fusion’s shift from R&D to industrial deployment, including a $150 million laser facility in Colorado and a nuclear fusion power plant concept with Siemens Energy.
- New strategic investors—EQT Ventures, Siemens Energy Ventures, and the EIC Fund—join existing backers as Europe emphasizes fusion energy’s role in energy sovereignty and industrial competitiveness.
Marvel Fusion Secures Record Funding for Fusion Energy Expansion
PRESS RELEASE — Marvel Fusion, the leading European nuclear fusion energy company, today announced the extension of its Series B funding round by EUR 50 million, bringing the total round to EUR 113 million. The extension includes new investments from EQT Ventures, Siemens Energy Ventures, and the European Innovation Council (EIC) Fund, marking their first fusion energy equity investment. Existing investors Tengelmann Ventures and Bayern Kapital contributed again. With this extension to its Series B, Marvel Fusion is now the best-funded European nuclear Fusion company.
Industrial Deployment and Fusion Power Plant Concept
The extended financing round further supports Marvel Fusion’s transition from its research and development phase toward industrial deployment. This includes the current construction of a landmark $150 million laser facility in partnership with Colorado State University. As a leading nuclear fusion company, Marvel Fusion is progressing its industrial partnership with Siemens Energy by jointly developing a conceptual design of a fully integrated nuclear fusion power plant. Moritz von der Linden, founder and CEO of Marvel Fusion, said: “Welcoming the EIC Fund, EQT Ventures and Siemens Energy to our shareholder board is fantastic; it gives us the financial and operational backing for executing the required milestones towards building the world’s first fusion prototype”.
As one of the world’s leading energy technology companies, Siemens Energy commits significant resources to designing the overall concept for the fusion power plant as well as concepts for heat transfer and power generation systems. Juha Pankakoski, Executive Vice President Global Functions at Siemens Energy, comments: “We have long been involved with Marvel Fusion, contributing our expertise and we look forward to continuing our joint work. We hope this important technology becomes a reality, enabling reliable energy. When that day arrives, Siemens Energy is committed to being at the forefront.”
Innovating High-Energy Laser Systems for Fusion
To build the first laser-based fusion power plant, the nuclear fusion company Marvel Fusion heavily innovates high-energy laser systems and scales the production of lasers. Currently building two laser prototypes, the company is actively forging industrial partnerships for the ramp-up of laser production, which can meet the high-gain requirement needed to offer sufficient energy at competitive prices.
Antonia Schmalz, CTO of Pulsed Light Technologies and innovation manager at SPRIND, says: “Providing the initial funding for the first two prototypes, SPRIND is committed to supporting Marvel Fusion’s path to scaled laser production and their further mission to build a nuclear fusion power plant.“
Ted Persson, Partner at EQT Ventures, said: “Needless to say, solving fusion would be a generation-defining moment for humanity. We’ve followed the fusion space since the early days of EQT Ventures. The exceptional team at Marvel Fusion has proven time and again that fusion energy is within reach, and we are more than excited to partner with them.”
Nuclear Fusion Companies: A Solution for Europe’s Energy Sovereignty
The strategic investment arrives amid heightened geopolitical tensions and increased urgency for energy sovereignty across Europe. With rising demand, volatile energy markets, and the pressing need for sustainable alternatives to fossil fuel and a reduced dependency from energy imports, Europe is actively diversifying its energy infrastructure. The European Commission has explicitly identified fusion energy as “no longer a research subject” but rather “an industrial challenge with immense potential for Europe’s industry, competitiveness, and strategic autonomy.” As a leading nuclear fusion company, Marvel Fusion’s progress positions the company uniquely to address global energy demands sustainably. Fusion energy, once commercialized, will transform global energy supply, significantly reducing reliance on fossil fuels and enabling an economically viable pathway to competitive, reliable baseload energy.
Svetoslava Georgieva, Chair of the EIC Fund Board, added: “The European Innovation Council’s Fund participation underscores a significant advance, demonstrating the EIC commitment to high-impact innovation by private nuclear fusion companies and in line with fusion technology’s position as a strategic technology for Europe.”
