Realta Fusion is an early-stage spin-out from the University of Wisconsin-Madison developing the lowest capital and least complex path to commercially competitive fusion energy. We are applying advances in super-conducting materials, plasma physics, and computing power to a simple linear fusion reactor configuration. These advances allow for a much lower capex power plant, utilizing abundant fuel sources to provide a new, zero-carbon source of heat and power.
Location: United States
Employees: 1-10
Total raised: $57.5M
Funding Rounds 3
| Date | Series | Amount | Investors |
| 18.02.2026 | - | $9.5M | SVB Capita... |
| 13.05.2025 | Series A | $36M | - |
| 05.06.2023 | Seed | $12M | - |
Mentions in press and media 22
| Date | Title | Description |
| 23.02.2026 | Realta Fusion Secures $9.5M For Breakthrough Fusion Power | Realta Fusion has secured a $9.5 million growth capital facility from Silicon Valley Bank, a division of First Citizens Bank. This significant investment will accelerate the development and commercialization of its CoSMo fusion™ energy syst... |
| 18.02.2026 | Realta Fusion Secures $9.5 Million Growth Capital Facility From Silicon Valley Bank | Realta Fusion has secured a $9.5 million growth capital facility from Silicon Valley Bank, a division of First Citizens Bank, to advance its magnetic mirror fusion technology toward commercialization. The financing will support continued de... |
| 17.02.2026 | Realta Fusion Receives $9.5M Growth Capital Facility from SVB | Realta Fusion, a Madison, Wisconsin-based developer of magnetic mirror fusion technology, received a $9.5m growth capital facility. The debt financing was provided by Silicon Valley Bank (SVB), a division of First Citizens Bank. The company... |
| 14.05.2025 | Realta Fusion: A New Dawn for Fusion Energy | In the heart of Madison, Wisconsin, a revolution is brewing. Realta Fusion, a startup born from the hallowed halls of the University of Wisconsin-Madison, has just secured $36 million in Series A funding. This is not just another round of i... |
| 13.05.2025 | Realta Fusion Raises $36M in Series A Funding | Realta Fusion, a Madison, WI-based fusion energy startup, raised $36M in Series A funding. The round was led by Future Ventures with participation from Mayfield, GSBackers, SiteGround, Avila VC, Khosla Ventures, Wisconsin Alumni Research Fo... |
| 13.05.2025 | Realta: $36 Million Series A Closed For Fusion Energy Platform | Fusion energy startup Realta Fusion announced an oversubscribed $36 million Series A funding round to bring its compact, scalable, modular magnetic mirror fusion technology closer to commercialization. Future Ventures led the round, which a... |
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