TTransmutex builds subcritical, accelerator-driven nuclear energy systems for civilian use. A particle accelerator works with a nuclear fuel assembly to create a non-self-sustaining fission reaction that can be halted in under 2 milliseconds, enabling modular plants from about 220 MWe up to over 1 GWe and supporting fuels like thorium. Besides power generation, the platform can destroy long-lived radioactive waste and burn legacy uranium waste, while offering high-energy physics software and isotope production capabilities. The goal is to provide safe, affordable, carbon-free base-load power at scale, with minimized proliferation risk and productive uses for nuclear waste and isotopes.
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Industries
Company Size
51-200
Company Stage
Grant
Total Funding
$43.5M
Headquarters
Vernier, Switzerland
Founded
2019
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Total Funding
$43.5M
Meets
Industry Average
Funded Over
5 Rounds
Geneva, Switzerland, March 2025 - Craig Kelly has joined Transmutex as Chief Financial Officer, bringing with him over three decades of experience in corporate finance, structured investments, and financial strategy.
Geneva-based startup Transmutex has received more than $4.2 million from the U.S. Department of Energy Advanced Research Projects Agency-Energy as part of the NEWTON Program. The funds will finance a project in Los Alamos aiming to enable nuclear waste transmutation to transform long-lived radioactive elements into shorter-lived ones, reducing their hazardous lifetime from 1 million years to a few hundred years.The U.S. Department of Energy's Advanced Research Projects Agency-Energy (ARPA-E) has allocated $40 million to fund 11 projects focused on developing transmutation technologies aimed at minimizing the impact of used nuclear fuel (UNF) in permanent storage. Transmutation involves changing an isotope into a different isotope or element through a nuclear reaction. Under the Nuclear Energy Waste Transmutation Optimized Now (NEWTON) program, ARPA-E will support efforts to create transmutation technologies that could greatly reduce the mass, volume, activity, and effective half-life of the current stockpile of commercial UNF, potentially transforming the disposal of UNF from a long-term, intergenerational challenge into a more immediate, intragenerational issue
The world is shifting to green energy sources to reduce carbon emissions and halt climate risks. Thus, developing new technologies for these energy sources is important to accelerate the transition.Many European startups developing nuclear technology have entered the market. Old nuclear technology has many shortcomings that these startups see as a chance to create innovative approaches. The nuclear startup sector has grown substantially these past few years, backed by numerous investments and an army of scientists and engineers.Europe is where many startups are thriving, as it has an excellent growth environment. Here is a list of thriving nuclear startups to anticipate in 2024.ThorizonFounder(s): Sander de Groot and Lucas PoolYear founded: 2018Hiring: Yes, check job opportunities here- A message from our partner -The Amsterdam-based nuclear energy startup Thorizon is developing a reactor that runs on molten salt. The company claims its technology is safe, smart, and circular and does not waste energy
Geneva-based nuclear engineering company Transmutex has secured CHF 20 Million in financing from New York-based venture capital funds Union Square Ventures and Steel Atlasm.
Geneva-based Transmutex SA, raises over CHF 20M in Series A extension to further develop and commercialize its subcritical nuclear energy system.
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Industries
Company Size
51-200
Company Stage
Grant
Total Funding
$43.5M
Headquarters
Vernier, Switzerland
Founded
2019
Find jobs on Simplify and start your career today
Don't see your dream role? Check out thousands of other roles on Simplify.Browse all jobs