Key facts
- Realta Fusion’s last known valuation is $105.5M (May 2025).
- It has raised $54.0M across 2 recorded rounds; the latest was Early Stage VC ($35.5M) in May 2025.
- Notable investors include Alumni Ventures, Khosla Ventures, U.S. Department of Energy, Future Ventures (San Francisco), Scoop Ventures — 17 tracked in total.
- Realta Fusion has filed 2 Form Ds with the SEC since 2023, most recently May 2025 ($35.5M sold to 15 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 2 rounds
- ·The complete investor list — 17 names
- ·Watchlist + deal alerts for Realta Fusion
Funding rounds
2 roundsAbout Realta Fusion
Operator of an energy company intended to produce industrial heat and power from fusion energy. The company applies advances in super-conducting materials, plasma physics and computing power to a simple linear fusion reactor configuration, enabling clients with a lower capex power plant, and utilizing fuel sources to provide a new, zero-carbon source of heat and power.
- Sector
- Energy
- HQ
- Madison, WI, United States
- Founded
- 2022
- Employees
- 40
- Website
- realtafusion.com/
- Ownership
- Privately Held (backing)
Realta Fusion doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Realta Fusion shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Realta Fusion in its N-PORT filings yet. We sweep new filings monthly.