Radiant Industries, Inc.
PrivateLast Round
Series D
Dec 17, 2025
Est. Valuation
$1.85B
Total Funding Raised
$568.5M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Radiant Industries, Inc. operates in Energy & Sustainability and is based in El Segundo, California. Its latest recorded funding round was a Series D round in December 2025.
Radiant Industries, Inc. is an alternative energy equipment company that develops portable, factory-built nuclear microreactor technology for commercial, industrial, and defense applications.
Sector
Energy & Sustainability
Verticals
Defense Tech, Energy Storage
Business Model
B2G
Customer Profile
Hardware Sales, Government Contracts, Services & Consulting
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Radiant Industries, Inc. Comparables
Compare Radiant Industries, Inc. with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Antares Nuclear | 87% | |
| Hadron Energy | 87% | |
| NANO Nuclear Energy | 82% |
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Radiant Industries, Inc. Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series D | Dec 17, 2025 | ||||
| Series C | May 28, 2025 | ||||
| Series B | Apr 24, 2023 | ||||
| Grant | Mar 22, 2023 | ||||
| Series A | Mar 9, 2022 | ||||
Seed | Sep 22, 2020 |
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Key People
Founding team and executive leadership
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Radiant Industries, Inc. Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Andreessen Horowitz | Series D, Series C, Series B |
| Also Capital | Series A, Seed, Series C |
| Friends & Family Capital | Series D |
| Washington Harbour Partners | Series D, Series C |
| United States Department of Defense | Grant |
| Union Square Ventures | Series D, Series C, Series A |
| Gigascale Capital | Series C |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Oct 15, 2026
Partnered with Penn State University for an employee educational program.
- Oct 4, 2026
Signed pre-order agreements with Equinix.
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Recent news
Latest coverage and updates
- increases_headcount_byOct 29, 2026
Radiant, Inc. expects to have about 1,000 open positions at its TX-1 and TX-2 fabrication facilities amid development of Oak Ridge’s nuclear energy hub.
- signs_new_clientOct 22, 2026
Radiant, Inc. is selected by Navy Enterprise to deploy Kaleidos at Naval Weapons Station Crane in Indiana in Oct '26.
- expands_facilitiesOct 20, 2026
Radiant, Inc. builds a $280 million microreactor manufacturing plant in Tennessee, and the NRC accepts its license application for review on May 5th '26.
- invests_into_assetsOct 20, 2026
Radiant, Inc. is already building the $280M R-50 microreactor manufacturing plant in Tennessee, targeting production of up to 50 microreactors per year as of Oct '26.
- is_developingSep 9, 2026
Radiant, Inc. is developing transportable microreactors designed to provide reliable power for remote locations, data centers, defense applications, and other commercial and industrial uses.
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Radiant Industries, Inc. 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 Radiant Industries, Inc.'s valuation, stock price, and market status.
Is Radiant Industries, Inc. a public or private company?
Radiant Industries, Inc. is a private company.
What is the current stock price of Radiant Industries, Inc.?
Radiant Industries, Inc. is a private company, so its shares have no public market price. Caplight tracks Radiant Industries, Inc.'s secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Radiant Industries, Inc. worth (valuation)?
Radiant Industries, Inc.'s valuation is estimated at $1.9B based on funding round data.
Can I buy Radiant Industries, Inc. stock?
Radiant Industries, Inc. shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Radiant Industries, Inc.'s last funding round?
Radiant Industries, Inc.'s most recent funding round was Series D on December 17, 2025.
Who are the main investors in Radiant Industries, Inc.?
Key investors in Radiant Industries, Inc. include Andreessen Horowitz, Union Square Ventures, Draper Associates, Boost VC, DCVC (Data Collective).
Will Radiant Industries, Inc. IPO soon?
No public IPO plans have been announced for Radiant Industries, Inc..
How can I track Radiant Industries, Inc. secondary market activity?
Caplight tracks bids, offers, and trades in Radiant Industries, Inc.'s shares on secondary markets.