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Realta Fusion

Realta Fusion

Private
Madison, WisconsinEnergy & Sustainabilityhttps://realtafusion.com/

Last Round

Debt

Feb 17, 2026

Total Funding Raised

$57.5M

Momentum

Top 5%

of companies Caplight tracks

Company Overview

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

Services & Consulting, Government Contracts

AI Layer

Infrastructure

Keywords

fusion energyfusion powermodular fusionclean energymagnetic mirrorHTS magnetshigh-temperature superconductingbaseload powerdeep techfusion startupcarbon-free energyenergy infrastructurenuclear fusion

Historical Pricing

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Caplight Momentum Score

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Realta Fusion Comparables

Compare Realta Fusion with similar companies based on industry and business-model similarity.

Realta Fusion comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Novatron Fusion Group AB
87%
Type One Energy Group
85%
Mirror Fusion
82%

Realta Fusion Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
DebtFeb 17, 2026
Series AMay 13, 2025
VC RoundDec 4, 2024
SeedJun 15, 2023
GrantMay 31, 2023

Key People

Founding team and executive leadership

Cary Forest

Co-Founder, CSO and acting CTO

Founding Team

Kieran Furlong

CEO & Co-Founder

Founding Team

Niall MacGearailt

CFO Fractional

Executive Team

Realta Fusion Investors

Notable investors and investment history

Realta Fusion investors
InvestorRounds
GSBackersSeries A
Future VenturesSeries A
Avila VCSeries A
Khosla VenturesVC Round, Series A, Seed
Bascom VenturesSeries A
Wisconsin Alumni Research FoundationVC Round, Series A, Seed
Mayfield FundSeries A

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.

Recent news

Latest coverage and updates

  • is_developingSep 2, 2026

    Realta Fusion Inc. is developing fusion energy systems using magnetic mirror technology on Sep 1st '26.

  • invests_into_assetsSep 2, 2026

    Realta Fusion Inc. invested into assets: office and industrial space on Sep 1st '26.

  • expands_facilitiesSep 2, 2026

    Realta Fusion Inc. expanded facilities to Wisconsin, United States, Northern America, Americas on Sep 2nd '26.

  • partners_withSep 2, 2026

    Realta Fusion Inc. partnered with MGE on Sep 2nd '26.

  • is_developingSep 2, 2026

    Realta Fusion Inc. is developing compact, scalable, modular - CoSMo fusion energy systems.

Realta Fusion Filings

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Realta Fusion filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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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 with no public stock price. No recent secondary market data is available.

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. Visit https://www.caplight.com to learn more.

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 for private companies. Visit https://www.caplight.com to monitor Realta Fusion's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersMadison, Wisconsin
Employee Range56
Year Founded2022
Last FundingFeb 17, 2026

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