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Transmutex

Geneva, Switzerland · Founded 2019 · Privately Held (backing)

Developer of nuclear technology designed to address the problem of spent nuclear fuel by reducing its toxicity and long-term hazards. Transmutex is based in Geneva, Switzerland and was founded in 2019. Its last reported valuation was $24.9 million in Nov 2020. It has raised $45.7 million.

Last reported valuation
$24.9M
Nov 2026
Priced at
—
Total raised
$45.7M
Last round
—

Transmutex key facts

as of Nov 2026
  • Developer of nuclear technology designed to address the problem of spent nuclear fuel by reducing its toxicity and long-term hazards.
  • Transmutex is valued at approximately $24.9M as of Nov 2026 (last reported valuation).
  • It has raised $45.7M; the latest was Later Stage VC ($11.5M) in Feb 2025.
  • Notable investors include Plug and Play Tech Center, AlleyCorp, Tiny Supercomputer Investment Company, Union Square Ventures, Verve Ventures — 16 tracked in total.
  • Status: Privately Held (backing).
Last reported valuation
LOW confidence
$24.9M

Transmutex's last reported valuation, Nov 2020. Nothing priced has surfaced since.

set by last reported valuationas of Nov 2026question about this number?
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Also on the Transmutex record at Private Market View
  • ·The complete investor list: 16 names
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Transmutex funding rounds

No rounds on record

No funding rounds for Transmutex are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.

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Transmutex valuation

Transmutex's last reported valuation was $24.9 million in Nov 2020. No priced round, secondary trade or fund mark has surfaced since.

Transmutex investors

16 investors are on record for Transmutex, including Plug and Play Tech Center, AlleyCorp, Tiny Supercomputer Investment Company and Union Square Ventures. By type, the record holds 7 venture capital firms and 1 family office.

About Transmutex

Developer of nuclear technology designed to address the problem of spent nuclear fuel by reducing its toxicity and long-term hazards. The company offers the Subcritical Transmutation Accelerated Regenerative Technology (START) system, which transforms long-lived transuranic elements and fission products into shorter-lived isotopes, enabling the recycling of nuclear material and the production of new proliferation-resistant fuel from thorium.

Sector
Energy
HQ
Geneva, Switzerland
Founded
2019
Employees
66
Ownership
Privately Held (backing)

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