Helion Energy
108 jobsSeries C+ · Everett, WA
Builds commercial fusion generators.
$1.5B raisedFunded 6/4/2026
Zeno Power
26 jobsSeries B · Seattle, WA
Builds radioisotope power systems.
$102.7M raisedFunded 1/21/2025
Endurance Energy
18 jobsSeries A · Seattle, WA
Modular seafloor geothermal power plants for gigawatt-scale baseload renewable energy.
$79M raisedFunded 6/11/2026
Boosts industrial performance with AI.
$110.5M raisedFunded 10/1/2025
Zap Energy
1 jobsSeries C+ · Everett, WA
Develops sheared-flow Z-pinch fusion energy technology.
$348.2M raisedFunded 9/26/2024
AtmoCooling
Seed · Seattle, WA
Turns deserts into commercial hubs.
$3.6M raisedFunded 12/6/2024
Avalanche Energy
Series B · Seattle, WA
Builds micro-scale orbitron fusion power sources.
$170.3M raisedFunded 7/10/2025
Electric Era
Series A · Seattle, WA
Builds nationwide EV fast charging.
$39.5M raisedFunded 8/19/2025
How this list is built
BuildList includes active companies with a canonical sector and headquarters metro. Hiring counts come from verified openings collected directly from company applicant-tracking systems.