# Zephyr Fusion

> Zephyr Fusion is building the first in-orbit fusion power source - a compact, megawatt-class reactor designed to run in the vacuum of space. Founded by two physicists who met in grad school operating a spherical tokamak, the San Diego-based startup uses a levitated dipole magnetic confinement approach with high-temperature superconductors. Their bet: space makes fusion easier, not harder. With launch costs down 10x and mass-produced HTS tapes providing 10x more field per kilogram, Zephyr Fusion aims to power the industrial revolution that humanity is about to have off-planet.

- **Founded:** 2025
- **Headquarters:** San Diego, CA, USA
- **Founders:** Edward Hinson (CEO), Galen Burke (CTO)
- **Team size:** 2
- **Products:** In-Orbit Fusion Reactor
- **Notable:** Accepted into Y Combinator Fall 2025 batch, Raised seed funding from Y Combinator and Pioneer Fund among others, Featured in Data Center Dynamics as a YC-championed fusion startup

## Products & services

- **In-Orbit Fusion Reactor** — A compact, megawatt-class fusion power source using levitated dipole magnetic confinement with a single superconducting coil and high-temperature superconductor (HTS) magnets. Designed to leverage the unlimited natural vacuum of space for plasma confinement, eliminating the need for bulky reactor walls required on Earth.

## Achievements

- Accepted into Y Combinator Fall 2025 batch
- Raised seed funding from Y Combinator and Pioneer Fund among others
- Featured in Data Center Dynamics as a YC-championed fusion startup
- Published fusion research in Physical Review Letters, Nuclear Fusion, and Physics of Plasmas (founders' academic work)

## Latest updates

- **2025-11** — Raised undisclosed seed extension from Pioneer Fund, Brimstone Hill Capital, Spot VC, and Syntax Ventures
- **2025-10** — Launched publicly via Y Combinator Launch with detailed technical vision for in-orbit fusion power
- **2025-09** — Graduated from Y Combinator Fall 2025 batch with $500K seed funding

## Links

- Website: https://zephyrfusion.com
- Twitter/X: https://x.com/Zephyr_Fusion

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Profile page: https://yespress.io/zephyr-fusion
Published by YesPress — https://yespress.io
Last updated: 2026-04-20