HEUKING advises DeepTech start-up Factor2 Energy on its spin-off from Siemens Energy and its following seed financing round

Factor2 Energy GmbH, a green energy start-up and spin-off from Siemens Energy, has successfully completed a seed financing round raising over EUR 5 million.

Founded in Q2 2025 and headquartered in Duisburg, Factor2 Energy develops and manages intellectual property rights in the field of CO₂-based geothermal energy. The company licenses these rights to project developers and also carries out its own power plant development projects.

The financing round was led by At One Ventures, with participation from Siemens Energy Ventures, Gründerfonds Ruhr, High-Tech Gründerfonds (HTGF), and Verve Ventures.

Factor2 Energy is pursuing a novel approach to the use of geothermal energy: instead of relying on water as has been the case to date, the company uses carbon dioxide (CO₂) as a heat transfer medium. This should make geothermal energy possible even in places where there are no volcanoes or hot springs – a decisive step for the energy transition in Germany. According to a recent report in Handelsblatt, Factor2 Energy's technology could even double the electricity yield compared to conventional methods and is particularly attractive for traditional oil and gas companies.

The start-up was legally supported by the HEUKING Venture Capital Team around Dr. Patrick Müller, LL.M. (HEUKING Partner VC Düsseldorf). HEUKING regularly advises start-ups and VC investors in various financing rounds.

HEUKING looks forward to continuing its collaboration and supporting the company on its growth path.

Counsel to Factor2 Energy GmbH
HEUKING: 
Dr. Patrick Müller, LL.M. (Bristol), (Lead), 
Laura Jochem, LL.M. (Norwich), (both Venture Capital), both Düsseldorf,
Dr. Henrik Lay (Tax), Hamburg,
Dr. Ruben A. Hofmann,
Dr. Peter J. Fries (both IP), both Cologne
Beatrice Stange, LL.M. (London), (Antitrust), Düsseldorf
Mark Rossbroich, LL.M. (London), (Venture Capital), Cologne