T
Transmutex
Energy · Vernier, Switzerland · Founded 2019
Recycles nuclear waste to create carbon-free nuclear energy MoreLess
Transmutex is a pioneering startup that aims to revolutionize the civilian nuclear energy sector. The company's innovative technology focuses on producing nuclear energy that is not only safer and less expensive but also non-proliferant. This is achieved through a unique process that combines a particle accelerator with a nuclear fuel assembly to create a non-self-sustaining reaction. This reaction can be halted in less than 2 milliseconds, ensuring a high level of safety.
Transmutex's technology is highly adaptable, capable of using various fuels, including thorium, a metal as common as lead. This flexibility helps in addressing the world's increasing demand for carbon-free energy. The company has developed a range of hardware and software products that leverage this technology to provide carbon-free base load power, addressing the core issues of safety, cost, and proliferation risk that have traditionally hindered the global deployment of nuclear energy.
The company's subcritical systems can generate between 220 MWe to over 1 GWe of power with modular installations. Furthermore, their technology can be used to destroy radioactive waste. By using thorium fuel, the system does not generate plutonium waste and can even be used to burn long-lived radioactive waste from uranium-based nuclear energy.
Transmutex also offers high-energy physics simulation software for designing energy production systems, radioisotope production, radioprotection, and more. Their particle accelerator can produce radioisotopes for various applications, including medical imaging, cancer therapies, radiography, and food irradiation.
The startup has attracted investment from leading global venture capitalists and private investors, indicating strong confidence in its business model and future prospects.
Keywords: Nuclear Energy, Safety, Cost-Efficiency, Non-Proliferant, Carbon-Free Energy, Radioactive Waste Destruction, Thorium Fuel, High Energy Physics Simulation Software, Radioisotope Production, Venture Capital.
Company overview
Transmutex company information
The essential company record, classifications and operating signals in one place.
- Status
- Operational
- Founded
- 2019
- Headquarters
- Vernier, Switzerland
- Employees
- 55
- Open positions
- None listed
- Dealroom signal
- 72.4
Valuation & funding
Transmutex funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| GRANT✓Other financing | Jan 2025 | $4.3M | — | US Department of Energy | ↗ |
| SERIES A✓Equity / VC | Jan 2024 | $23M | $93M | FONGIT · AlleyCorp · House Of Ventures · At One Ventures | ↗ |
| Other✓Other financing | Jun 2023 | $0 | — | Undisclosed | ↗ |
| SERIES A✓Equity / VC | May 2022 | $6.6M | $26M | Undisclosed | — |
| SERIES A✓Equity / VC | Jul 2021 | $4.9M | $19M | Union Square Ventures · AlleyCorp · Climate Fund | — |
| SEED✓Equity / VC | May 2021 | Undisclosed | — | ||
| SPINOUT✓Other financing | Jul 2019 | CERN | — |
Financials
Workforce over time
Available workforce history. Financial fields without reported data are omitted.
| Year | Employees |
|---|---|
| 2026 | 55 |
| 2025 | 59 |
| 2024 | 39 |
| 2023 | 31 |
| 2022 | 22 |
| 2021 | 13 |
Growth signals
Transmutex website traffic
Latest recorded traffic for Transmutex is 620 monthly website visits, down 85.2% over the last three months. Transmutex's team declined 6.8% over the past year.
Comparisons
Transmutex compared with similar companies
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Talent graph
Transmutex's talent
Source: Dealroom Talent Intelligence.
Global footprint
Where Transmutex has talent and traffic
team presence
In the news
Latest news about Transmutex
Recent press, funding announcements, and product moves mentioning Transmutex — open to read from the original sources.
Market sentiment
What the market is saying about Transmutex
An AI-synthesized read of the highest-engagement posts about Transmutex on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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