A Wisconsin startup is chasing a clean energy dream. Realta Fusion announced on May 13, 2025, that it raised $36 million to develop its fusion energy technology. The funds will help bring carbon-free power to industries like data centers by 2028.

A Simpler Fusion Idea

Realta’s tech uses a magnetic mirror system. Powerful magnets hold hot hydrogen gas in a cylinder, where atoms fuse to release energy. Unlike other fusion projects, it’s compact and avoids carbon emissions or nuclear waste.

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Powering Heavy Industry

The system is modular, meaning it can grow to fit different needs. It’s designed for on-site power at places like chemical plants or remote mines.

“We’re testing our designs to build a prototype by 2028,” said CEO Kieran Furlong.

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Big Names Back the Plan

The funding round, led by Future Ventures, included Mayfield, GSBackers, and Avila VC. Existing investors like Khosla Ventures and TitletownTech, supported by Microsoft and the Green Bay Packers, also joined.

“Realta’s approach is quick and practical,” said Future Ventures’ Maryanna Saenko.

Growing from Wisconsin Roots

Realta started as a University of Wisconsin-Madison project, backed by the U.S. Department of Energy. The money will upgrade its test device, plan a new R&D hub called The Realta Forge, and expand its 18-person team.

Why It’s a Big Deal?

Fusion could power the world with hydrogen, the most common element, without harming the planet.

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