Zephyr Fusion builds fusion powered satellite technologies that enable megawatt scale energy and aerospace operations in orbit.
Zephyr Fusion has raised $500K in total funding. The most recent round was Pre-Seed. The last funding was announced in December 2025.
Zephyr Fusion's investors include Y Combinator.
Zephyr Fusion is headquartered in San Diego, United States.
Zephyr Fusion builds fusion powered satellite technologies that enable megawatt scale energy and aerospace operations in orbit.
Zephyr Fusion is at the Pre-Seed stage.
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"Zephyr Fusion — Funding & Investors." VCBacked, December 3, 2025, https://www.vcbacked.co/company/zephyr-fusion. Accessed October 26, 2026.
VCBacked. (2025). Zephyr Fusion — Funding & Investors. Retrieved October 26, 2026, from https://www.vcbacked.co/company/zephyr-fusion
{{cite web |title=Zephyr Fusion — Funding & Investors |url=https://www.vcbacked.co/company/zephyr-fusion |website=VCBacked |access-date=October 26, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated