Proxima Fusion Shatters Records with $468M Funding Round

Jan de Vries · 2026-07-07

Proxima Fusion, a Munich-based startup, just announced a massive $468 million financing round, pushing its valuation to $2.7 billion. That makes it one of the best-funded fusion companies in Europe. The round was led by XTX Ventures and East X Ventures, with strategic investments from RWE and Google. Other big names include KfW Capital, SPRIND, Burda Principal Investments, and returning backers like Plural, UVC Partners, Balderton, Cherry Ventures, DST Global Partners, Brevan Howard Macro Venture, Lightspeed, DTCF, redalpine, Leitmotif, Elaia, CDP Venture Capital, Bayern Kapital, and the EIC Fund. ### Why This Matters for Fusion Energy Fusion is basically the holy grail of clean energy—it promises safe, abundant power without the waste of fission. But getting there is tough. Proxima's CEO, Dr. Francesco Sciortino, puts it simply: "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." This round shows investors are betting big on that vision. ### The Bigger Picture: Europe's Energy Tech Boom Proxima's raise didn't happen in a vacuum. In 2026, EU-Startups tracked no other pure fusion deals, but they saw at least $320 million in adjacent advanced-energy financing. That covers things like storage, grid flexibility, industrial heat, geothermal, and materials deep tech. German players like alqem, Entrix, encosa, Telura, and Berlin-based GALVANY are also active in energy infrastructure. Across Europe, you've got RIFT's $130 million industrial-heat round in the Netherlands, Exergy3's $13 million thermal storage seed in the UK, Hybrid Greentech's $17 million grid-flexibility investment in Denmark, and Gaussion's $28 million battery-intelligence raise in London. Add it all up, including Proxima, and you're looking at roughly $790 million in fusion and adjacent energy funding. ### Proxima's Track Record and Future Plans Proxima didn't just pop up overnight. EU-Startups covered their $8 million pre-seed in 2023, $23 million seed in 2024, and $148 million Series A in 2025. That's a solid funding history. The company was founded in 2020 as the first spin-out from the Max Planck Institute for Plasma Physics. They're building commercial fusion power plants using the QI-HTS stellarator concept, which builds on the Wendelstein 7-X program. Think of a stellarator as a twisted magnetic bottle that holds super-hot plasma—no, it's not sci-fi; it's real science. ### The Alpha Demonstrator and Beyond This new cash will help build Alpha, Proxima's net-energy stellarator demonstrator near Munich. Alpha is the bridge between decades of research and actual commercial deployment. The project is a partnership with the state of Bavaria, the Max Planck Institute, and RWE. The goal is to validate key technologies and speed up the world's first fusion power plant. Alpha is targeting the early 2030s, paving the way for Stellaris—the first commercial stellarator plant—later that decade. The Alpha Alliance, a consortium of over 50 industrial partners, backs this up. ### What This Means for You If you're a European startup founder or investor in the US, this is a signal. Fusion is moving from lab to market, and Europe is leading the charge. Proxima's success shows that deep tech can attract massive capital. In less than three years, they've secured over $740 million, including $108 million in public grants. That's a lot of faith in a technology that's still years from delivering power. But the urgency is real—energy independence and climate goals are driving this. So keep an eye on stellarators; they might just change the world.