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Transmutex

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Recycles nuclear waste to create carbon-free nuclear energy

Vernier, SwitzerlandFounded 2019Energy
Valuation $50–100M Last recorded · 2024
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Transmutex and the history behind them.

About Transmutex

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.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2019
Headquarters
Vernier, Switzerland
Employees
55
Open positions
None listed
Dealroom signal
72.4/100
Sub-industry
Clean Energy, Waste Solution
Sector
Energy, Recycling, Spinout, Sustainable Development Goals, Nuclear Fission, Climate Tech, Novel Energy, Circular Economy, NIF defense security and resilience
Technology
Hardware, Deep Tech
Business model
Manufacturing
Client focus
b2b

Funding history

7 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
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 ↗
Showing the latest 2 of 7 recorded eventsBook a demo for the full funding history →

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.

Latest monthly visits620 3-month web change-85.2% 1-year team growth-6.8%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

15 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed1 investor entered at this stage

  • US Department of Energy

Series A11 investors entered at this stage

Other known investors3 additional known investors

Team profiled 4 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
8 countries with
team presence
🇨🇭 Switzerland79.3%
🇫🇷 France7.5%
🇺🇸 United States3.8%
🇫🇮 Finland1.9%
🇸🇦 Saudi Arabia1.9%
Top 5 of 8 shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Transmutex on X, ranked by likes and reposts, corporate channels excluded.

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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