Marvel Fusion, a startup based in Munich, has secured an additional €50 million in an extension of its Series B funding round, increasing the total to €113 million for the round. The funds will support the company’s next phase, which involves shifting from experimental development to practical implementation of its laser-based fusion energy technology. The company’s approach leverages high-intensity lasers and nanostructured targets to initiate fusion reactions, aiming to provide a scalable, carbon-free energy source. This latest funding brings Marvel Fusion’s total capital raised to €385 million, combining both private investments and publicly funded partnerships.
Marvel Fusion previously received backing from investors including Earlybird and Bayern Kapital, focusing predominantly on R&D. Now, with contributions from EQT Ventures, Siemens Energy Ventures, and the European Innovation Council (EIC) Fund—its first equity commitment in fusion energy—the company is increasingly moving toward commercialization. Unlike earlier reports that primarily highlighted theoretical progress and simulation-based predictions, the current funding round signifies a shift to real-world application, including facility construction and system integration with industrial partners.
What are Marvel Fusion’s construction plans?
Part of the new funding will finance a $150 million laser facility developed in collaboration with Colorado State University. This facility will serve as the foundation for testing Marvel Fusion’s unique fusion approach. The company is also building two laser prototypes designed to meet energy gain targets, which are essential for making fusion commercially viable. These systems will help refine the design of future operational reactors.
How is Marvel Fusion collaborating with industrial partners?
Marvel Fusion is working closely with Siemens Energy on creating a conceptual design for a fusion power plant. Siemens Energy is contributing its expertise in power conversion and thermal management.
“We have long been involved with Marvel Fusion, contributing our expertise and we look forward to continuing our joint work,”
said Juha Pankakoski, Executive VP at Siemens Energy. The involvement of such partners is considered critical for translating lab-based technology into practical energy systems.
The EIC Fund’s investment marks its initial venture into fusion and is viewed as a milestone for public involvement in next-generation energy technologies.
“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,”
said Moritz von der Linden, CEO of Marvel Fusion.
Marvel Fusion’s strategy focuses on achieving high-gain fusion using laser-driven methods, in contrast to conventional magnetic confinement or inertial confinement approaches. The company asserts that its chosen path offers a more scalable and potentially faster route to commercial fusion energy.
“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 fusion power plant,”
noted Antonia Schmalz from SPRIND.
Founded in 2019, Marvel Fusion has concentrated on integrating laser physics and nanotechnology to increase the probability of fusion reactions. Its long-term objective is to provide a cost-effective and carbon-neutral energy source that can operate as baseload power—energy that is continuously available and not impacted by weather or time of day.
Commercial fusion energy, according to Marvel Fusion, could significantly reduce dependence on fossil fuels while offering a stable and competitive electricity source. As countries seek alternatives to intermittent renewables and fossil-based generation, fusion has gained attention as a potential solution. However, substantial technological challenges remain, including achieving energy gain, managing heat loads, and scaling up laser systems cost-effectively. Marvel Fusion’s industrial partnerships and latest funding suggest a growing institutional belief in the feasibility of laser-based fusion, although it still faces competition from other fusion approaches, such as those pursued by Tokamak Energy and Commonwealth Fusion Systems. For readers, tracking the progress of Marvel Fusion offers a glimpse into how national and corporate funding ecosystems are aligning to tackle long-standing issues in energy production using advanced physics and engineering.
