Series B extension · Climate tech
Marvel Fusion adds €50m to Series B for laser-driven fusion
The extension brings the Series B to €113m and backs laser and power plant development.
Marvel Fusion announced a €50 million Series B extension on March 27, 2025, taking the round to €113 million. EQT Ventures, Siemens Energy Ventures and the EIC Fund joined existing backers Tengelmann Ventures and Bayern Kapital.
The German company will use the financing to advance laser-driven fusion, including its research facility with Colorado State University and integrated power plant design with Siemens Energy.
Use of funds
Support construction of a laser research facility with Colorado State University
Advance integrated fusion power plant design with Siemens Energy
Develop and scale high-energy laser systems
Funding history
Series B extension · This round€50M