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YC F25 · Active

Zephyr Fusion

Powering tomorrow's industrial revolution in space

Class
Fall 2025
Status
Active
Industry
Industrials
Location
San Diego, CA, USA
Team size
2

Website

https://www.zephyrfusion.com

About

Zephyr Fusion is building the first in-orbit fusion power source: a megawatt-class reactor enabling large-scale industry in space, at a fraction of the cost of equivalent solar. Founded by former physicists from Lawrence Livermore and Oak Ridge National Laboratories, Zephyr leverages decades of fusion research to deliver a compact magnetic confinement system designed to take advantage of the space environment.