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Avalanche Energy
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Avalanche Energy

Handheld fusion reactors.





Seattle, Washington


Climate, Fusion

Company Description

We are designing, testing and building micro fusion reactors that you can hold in your hands. Our modular reactor will be capable of being combined however needed to provide clean energy and decarbonize the planet. Our unique approach enables rapid iterations of build, test, fix design cycles.

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Total Raised

$45 million



Significant Investors

Founders Fund, Toyota Ventures, Lowercarbon Capital, Azolla Ventures, Congruent Ventures, Autodesk, MCJ Collective, Climate Capital Syndicate

Company Traction

  • As of June 2023, Avalanche Energy claims its fusion reactors have 5 Kilowatt capacity.
  • In April 2023, Avalanche Energy achieved 200 kilovolts for its second prototype reactor, making it the highest known operating voltage for any fusion device. 
  • In May 2022, Avalanche Energy won a Pentagon contract.

Leadership Team

  • Robin Langtry: Co-Founder & CEO of Avalanche Energy. Former Advanced Concepts at Blue Origin.
  • Brian Riordan: Co-Founder & COO of Avalanche Energy. Former Principal Engineer at Blue Origin.
  • Hawkins DeFrance: Director of Regulatory Affairs at Avalanche Energy. Former Vice Chair, Pharmacy Quality Assurance Commission at Washington State Department of Health.


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