Avalanche Energy

Compact Fusion Machines

Seattle, United States · Founded 2018 · $69.0M raised

Employees
51–200
Founded
2018
Business Model
B2B
Total Funding
$69.0M
Last Round
$29.0M Venture RoundFeb 2026
Rounds
3

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 round in Feb 2026. Investors include Lowercarbon Capital, RA Capital Management and Toyota Ventures.

Tech & App Stack

4 technologies & apps tracked

Create a free account — 10 credits a month to unlock the full tech & app stack, funding history, and valuations.

Sign up to view the funding chart

Create a free account — you'll get 10 credits a month to unlock funding history, valuations, and tech stacks.

Funding History

Venture RoundVenture RoundFeb 2026
$29.0M

Sign up to see all 3 rounds

Full funding history, per-round amounts, and investor participation.

Investors

Similar Companies