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Realta Fusion
Industrial heat and power from fusion
About Realta Fusion
Realta Fusion is a company developing compact and cost-effective fusion generators. The company's approach is based on magnetic mirror technology, a concept that has been explored for decades but is now being advanced with modern technology.
Read full description
Realta Fusion's generators are designed to be smaller and more affordable than traditional fusion reactors, making them suitable for a wider range of applications. The company is initially targeting industrial clients that require a constant and reliable source of heat and power for their operations. The business model is focused on partnering with these industrial players to build and operate the first commercial fusion plants.
At a glance
- Status
- Operational
- Founded
- 2022
- Headquarters
- Madison, United States
- Employees
- 62
- Open positions
- 2
- Dealroom signal
- 93.9/100
- Sub-industry
- Clean Energy
- Sector
- Energy, Spinout, Sustainable Development Goals, Nuclear Fusion, Industrial Technology, Climate Tech, Industrial Heat, NIF defense security and resilience, NIF Energy Security and Climate Change, DT and LS
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Latest news
Press, funding announcements and product moves mentioning Realta Fusion.
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| DEBT✓Debt | Feb 2026 | $9.5M | — | Silicon Valley Bank | ↗ |
| SERIES A✓Equity / VC | May 2025 | $36M | $144M | WARF Ventures · SiteGround Capital · Avila · GSBackers | ↗ |
Growth signals
Latest recorded traffic for Realta Fusion is 16K monthly website visits, up 281% over the last three months. Realta Fusion's team grew 67.6% over the past year.
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Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed2 investors entered at this stage
ARPA-E
Khosla Ventures
Series A7 investors entered at this stage
TitletownTech
Future Ventures (Canada)
WARF Ventures- SCSiteGround Capital
Avila
GSBackers
Mayfield
Series B and later1 investor entered at this stage
Other known investors2 additional known investors
University of Wisconsin-Madison
Discovery to Product
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Realta Fusion on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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