Realta Fusion
PrivateLast Round
Debt
Feb 17, 2026
Total Funding Raised
$57.5M
Momentum
Top 10%
of companies Caplight tracks
Company Overview
Realta Fusion operates in Energy & Sustainability and is based in Madison, Wisconsin. Its latest recorded funding round was a Debt round in February 2026.
Realta Fusion is an energy company developing compact, scalable, modular magnetic mirror fusion energy systems to provide zero-carbon industrial heat and power.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Advanced Materials
Business Model
B2B
Customer Profile
Government Contracts, Services & Consulting
AI Layer
Infrastructure
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Realta Fusion Comparables
Compare Realta Fusion with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Novatron Fusion Group AB | 87% | |
| Type One Energy Group | 85% | |
| Hefei Xingneng Xuanguang Technology Co., Ltd. | 84% |
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Realta Fusion Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Debt | Feb 17, 2026 | ||||
| Series A | May 13, 2025 | ||||
| VC Round | Dec 4, 2024 | ||||
| Seed | Jun 15, 2023 | ||||
| Grant | May 31, 2023 |
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Key People
Founding team and executive leadership
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Realta Fusion Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| GSBackers | Series A |
| Future Ventures | Series A |
| Khosla Ventures | VC Round, Series A, Seed |
| Bascom Ventures | Series A |
| Avila VC | Series A |
| Wisconsin Alumni Research Foundation | VC Round, Series A, Seed |
| Mayfield Fund | Series A |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 21, 2026
Monthly visitors increased 170% MoM.
- Aug 21, 2026
Grew 29% QoQ, from 52 to 67 employees.
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Recent news
Latest coverage and updates
- invests_into_assetsSep 2, 2026
Realta Fusion Inc. plans to lease approximately 250,000 square feet of office and industrial space at OM Station for the Realta Forge research and development facility.
- is_developingSep 2, 2026
Realta Fusion Inc. is developing fusion energy systems using magnetic mirror technology for compact, scalable, modular commercial power generation, while Madison Gas and Electric and MGE Energy partner with it to explore a 200-megawatt plant in Wisconsin on Sep 2nd '26.
- expands_facilitiesSep 2, 2026
On Sep 2nd '26, Realta Fusion Inc. announces a strategic partnership with Madison Gas and Electric to explore joint development of a 200-MWe fusion energy power plant in Wisconsin, with MGE Energy making a direct equity investment.
- partners_withSep 2, 2026
On Sep 2nd '26, Realta Fusion Inc. and MGE partner to explore joint development of a 200-MWe fusion power plant in Wisconsin, with direct investment and equipment, engineering, technical, siting, permitting, interconnection, and financing support.
- is_developingSep 2, 2026
Realta Fusion Inc. is developing compact, scalable, modular - CoSMo fusion(TM) energy systems based on the magnetic mirror fusion concept in Wisconsin.
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Realta Fusion Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Realta Fusion's valuation, stock price, and market status.
Is Realta Fusion a public or private company?
Realta Fusion is a private company.
What is the current stock price of Realta Fusion?
Realta Fusion is a private company, so its shares have no public market price. Caplight tracks Realta Fusion's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Realta Fusion worth (valuation)?
Valuation information for Realta Fusion is not publicly available.
Can I buy Realta Fusion stock?
Realta Fusion shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Realta Fusion's last funding round?
Realta Fusion's most recent funding round was Debt on February 17, 2026.
Who are the main investors in Realta Fusion?
Key investors in Realta Fusion include Future Ventures, Khosla Ventures, TitletownTech.
Will Realta Fusion IPO soon?
No public IPO plans have been announced for Realta Fusion.
How can I track Realta Fusion secondary market activity?
Caplight tracks bids, offers, and trades in Realta Fusion's shares on secondary markets.