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Maritime Fusion
Maritime Fusion

Maritime Fusion

Fusion reactors for ships.

Operating headquarters
San Francisco, CA, US🇺🇸
Accelerator
Y Combinator logoY CombinatorW25
Overview
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Fundraising
Employees
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Maritime Fusion is building fusion reactors for ships and off grid energy markets. En route on this endeavor we’re commercializing High Temperature Superconducting (HTS) cable technology for power distribution while advancing the physics basis of our HTS tokamak to decarbonize global shipping. Breakeven fusion is coming soon, but the first-of-a-kind (FOAK) reactors will be costly, high maintenance, and have low capacity factors, leading to 5–10x higher electricity cost on the grid.

Maritime Fusion is pursuing the most widely accepted approach to fusion, the tokamak, but specifically designed for the marine environment where the challenges that arise between breakeven and a commercially viable energy source are alleviated. The market we're targeting requires 15x less power, lower up-time, and costs the same as alternative fuels but without any emissions. Since fusion does not use highly radioactive fuels or materials – unlike fission – we sidestep the vast majority of regulatory challenges and safety risks associated with nuclear energy.

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Maritime Fusion - Quick Facts

Who are Maritime Fusion's competitors?

Companies similar to Maritime Fusion include Zephyr Fusion, Commonwealth Fusion Systems, Realta Fusion and Pacific Fusion.

Where is Maritime Fusion's headquarters located?

Maritime Fusion's headquarters is located in San Francisco, CA, US.

When was Maritime Fusion's last funding round?

Maritime Fusion's most recent funding round was for $500k (USD) in January 2025.

How much has Maritime Fusion raised to-date?

As of Jan 1, 2025, Maritime Fusion has raised a total of $500k (USD).