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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 25%

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.

  • Jul 20, 2026

    Grew 32% QoQ, from 47 to 62 employees.

  • Apr 1, 2026

    Advancing the WHAM experiment, currently in development.

Realta Fusion Filings

SEC and related filings with document metadata.

Data table
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Realta Fusion Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about Realta Fusion's valuation, stock price, and market status.

Firmographic Details

HeadquartersMadison, Wisconsin
Employee Range62
Year Founded2022
Last FundingFeb 17, 2026

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