Avalanche Energy
Compact Fusion Machines
Seattle, United States · Founded 2018 · $69.0M raised
- Headquarters
- Seattle, Washington
- Employees
- 51–200
- Founded
- 2018
- Business Model
- B2B
- Website
- avalanche.energy
- Total Funding
- $69.0M
- Last Round
- $29.0M Venture RoundFeb 2026
- Rounds
- 3
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 3 funding rounds and 7 investors for this company. The full record is or through the API.
About
Avalanche Energy builds compact, desktop-sized fusion reactors using an electrostatic confinement approach. Their technology generates high-energy neutrons for materials testing, space science, and defense applications. The company raised $29M Series A led by RA Capital, with backing from Founders Fund and Lowercarbon Capital, and operates a commercial-scale test facility (FusionWERX) in Richland, WA.
Summary
Avalanche Energy is a Clean Energy company based in Seattle, United States, founded in 2018. It has raised $69.0M in total across 3 rounds, most recently a $29.0M Venture Round in Feb 2026. Investors include Lowercarbon Capital, RA Capital Management and Toyota Ventures.
Tech & App Stack
4 technologies & apps tracked
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Funding History
Feb 2026
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Funding: Seed through Venture Round. Amounts, valuations, and investors where available.
Investors
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