Private Market View

Radiant

Alternative Energy Equipment · El Segundo, CA · Founded 2019 · Privately Held (backing)

PA Mark · $/share
$43
Sep 2026
Implied valuation
$1.9B
Total raised
$570.0M
Last round
PE Growth/Expansion
Jun 2026

Key facts

as of Sep 2026
  • Radiant is valued at approximately $1.9B (~$43/share) as of Sep 2026, per Private Market View’s composite mark.
  • It has raised $570.0M across 11 recorded rounds; the latest was PE Growth/Expansion in Jun 2026.
  • Notable investors include Alumni Ventures, Andreessen Horowitz, U.S. Department of Energy, Founders Fund, United States Department of War — 57 tracked in total.
  • Private Market View tracks 2 recorded secondary trades in Radiant shares.
  • Radiant has filed 2 Form Ds with the SEC since 2022, most recently Apr 2023 ($40.7M sold to 12 investors).
  • Status: Privately Held (backing).
PA Mark — composite indicative price
MEDIUM confidence
~$43per share
implies $1.9B valuation · as of Sep 2026 · the exact daily mark is a member feature
Composed from 3 inputs:3rd-party trades 79%Round prints 21%
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  • ·Post-money valuations for all 11 rounds
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Recorded secondary trades

2 on record · Feb 2026 – Jun 2026

2 trades between Feb 2026 and Jun 2026. Exact dates, prices and structures are available to Pro members.

Feb 2026peak 1 prints / monthJun 2026
Counts and months are public. The prints are the product.Unlock 2 trade prints

Institutional fund marks

No fund marks yet

No SEC-registered fund has reported a fair-value mark on Radiant in its N-PORT filings yet. We sweep new filings monthly.

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Funding rounds

11 rounds
Jun 2026PE Growth/Expansion—▮
Dec 2025Series D$350.0M▮
May 2025Series C$166.0M▮
Dec 2023Grant$3.8M▮
Aug 2023Grant$1.1M▮
Full funding history →

Leadership

About Radiant

Manufacturer of portable nuclear microreactor technology designed to offer a climate-friendly alternative to diesel generators. The company's technology combines nuclear technologies with engineering techniques to accelerate development time and provide a low-cost, portable renewable power source that can be an alternative to fossil fuels, enabling clients to bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios.

Industry
Alternative Energy Equipment
Sector
Energy
HQ
El Segundo, CA, United States
Founded
2019
Employees
194
Ownership
Privately Held (backing)