About Radiant Nuclear
Radiant Nuclear is an Energy & Utilities company based in Los Angeles (United States) founded in 2019 by Doug Bernauer. Designer of microreactor technology for power generation and industrial heat. Radiant Nuclear has raised $517.96 million across 7 funding rounds from investors including Tribe Capital, Draper and SBIR. The company has 586 employees. Radiant Nuclear was last valued at $1.8 billion in December 2025. Its chief executive, as recorded, is Doug Bernauer. Its website radiantnuclear.com draws about 29 thousand monthly visits. Its focus areas include Energy Tech, Energy Efficiency Tech, Thermal Products and HVAC. Its legal entity is Radiant Industries, Inc. Its competitors include TerraPower, NuScale Power and Oklo; 3 of its 3 listed competitors have raised funding.
Company details
Radiant Nuclear was founded in 2019 and is based in Los Angeles, United States. Operations center on the nuclear energy sector, where transportable microreactors are developed to deliver low-carbon electricity, district heating, and support for industrial processes. The technology is tailored for reliable energy solutions across various remote and on-site uses, with a focus on modular deployment.
- Headquarters Los Angeles, United States
- Employees 586
- Founders Doug Bernauer
- Stage Unicorn
- SectorsEnergy & Utilities
- Email••••••••
- Website radiantnuclear.com
- Social LinkedIn
- Legal Name Radiant Industries, Inc
- Total Equity Funding$517.96M (USD)
in 7 rounds
- Latest Funding Round$300M (USD), Series D
Dec 2025
- InvestorsTribe Capital
& 30 more
- Employee Count586
Funding Insights of Radiant Nuclear
Radiant Nuclear has successfully raised a total of $517.96M across 7 strategic funding rounds. The most recent funding activity was a Series D round of $300 million completed in December 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $517.96M
- Total Rounds 7
- Last Round Series D — $300M
- First Round $1.2M
(Sep 2020)
- Investors Count 31
All 7 funding rounds of Radiant Nuclear with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Dec 2025 | $300M | Series D | – | Draper Associates, Boost VC | |
| Feb 2025 | $66.05M | Series C | – | – | – |
| Oct 2024 | $100M | Series C | – | DCVC | |
| Apr 2023 | $40.71M | Series B | – | a16z | |
| Mar 2023 | $2.3M | Grant | – | – | |
| Mar 2022 | $10M | Series A | – | Union Square Ventures | |
| Sep 2020 | $1.2M | Angel Round | – | Charlie Songhurst, Hank Vigil | – |
| Date | Valuation | Stage |
|---|
Full valuation and stage history of Radiant Nuclear
Every valuation point, the growth-stage changes (minicorn, soonicorn, unicorn) and the dates behind them require an active premium plan.
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Last known valuation $1.8B (Dec 2025). 31 investors in total: 26 institutional and 5 angel.
Investors in Radiant Nuclear
Radiant Nuclear has secured backing from 31 investors, including venture fund, institutional, and angel investors. Prominent investors backing the company include Tribe Capital, Draper and SBIR.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Venture capital firm focused on multiple sectors | dcvc.com | Palo Alto, United States | ||
Venture capital investments in technology sectors are handled by Andreessen Horowitz. | a16z.com | |||
Venture capital firm focused on blockchain, wellbeing, and multiple sectors | usv.com | New York, United States | ||
Investments in technology startups are made by Felicis Ventures. | felicis.com | Menlo Park, United States | ||
A private investment firm focused on non-cyclical business sectors. | washingtonharbour.com | Arlington, United States | ||
Seed & early stage multiple stage focused corp VC firm funding companies in the US and Canada | chevron.com/technology/technology-ventures | Houston, United States | ||
Venture capital investments in technology and defense sectors. | foundersfund.com | |||
Investing in Deep Tech and emerging technologies for 12 years. | boost.vc | |||
Venture capital firm investing in multiple sectors | alsocapital.com | New York, United States | ||
Early-stage technology companies receive venture capital investments. | draper.vc | San Mateo, United States |
Investor details for Radiant Nuclear
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
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People of Radiant Nuclear
19 people are tracked at Radiant Nuclear (10 in leadership, 9 in team); the tracked headcount is 586.
| Name | Role | Group |
|---|---|---|
Doug Bernauer | Founder & CEO | Leadership |
Tatevik (Tate) Garibyan | Head of People Operations | Leadership |
Charles Palella | Director Supply Chain Management | Leadership |
Lauren Wilcox | Vp, Finance | Leadership |
Chad M. | Vice President, Head Of Talent | Leadership |
Dominic Gus Lin | Vice President Supply Chain Management | Leadership |
René Babior | Director Of Business Operations | Leadership |
Chris Hansen | Sr. Director, Kaleidos Production | Leadership |
Lenie Wong | Director Of Accounting | Leadership |
Chanson Yang | Director Of Licensing | Leadership |
Jonathan Chavez | Senior Supply Chain Manager | Team |
Lukman Dema | Operations Manager | Team |
Kamila Edwards | Mission Manager | Team |
Makai Cartman | Senior Operations Manager | Team |
Lara Chern | Reliability Engineer | Team |
Parker Buntin | Lead Materials Engineer | Team |
Ryan Bittner | Senior Systems Administrator | Team |
Javier Montoya | Senior Engineering Technician | Team |
Hesham Atef | Accountant | Team |
Complete people profiles for Radiant Nuclear
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Timeline of Radiant Nuclear
4 dated milestones of Radiant Nuclear across 6 years, from founding to its latest funding, stage changes and deals.
- Founded Radiant Nuclear is founded.
- Funding First funding round of $1.2M.
- Funding Latest funding round, Series D, of $300.0M.
- Milestone Reaches Unicorn status.
Competitors of Radiant Nuclear
Radiant Nuclear has 3 listed competitors in our database, 3 of them funded. They include TerraPower, NuScale Power and Oklo.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| terrapower.com | 2006 | Bellevue, United States | $1.46B | 299 | Advanced nuclear reactors are designed for low-carbon energy solutions. | |
| nuscalepower.com | 2007 | Portland, United States | $198.15M | 540 | Micro modular nuclear reactors are developed for scalable power generation. | |
| oklo.com | 2013 | Sunnyvale, United States | $120,000 | 2 | Small modular reactors are developed for advanced nuclear energy solutions. |
Detailed competitors of Radiant Nuclear
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
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Web traffic of Radiant Nuclear
The website of Radiant Nuclear (radiantnuclear.com) receives about 28.8K visits a month.
- Monthly visits28.8K
▲ 7.9% vs previous month
Websites whose visitors overlap most with Radiant Nuclear. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| oklo.com | 100% | 195.7K | #302,313 | View details | |
| radiantcompany.com | 60% | #2,451,864 | View details | ||
| radiantcu.org | 29% | #375,958 | View details |
Top companies in Energy Efficiency Solutions
3 companies that operate in the same segment as Radiant Nuclear (Energy Efficiency Solutions) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Cloud-based smart security cameras are manufactured for home use. | 1999 | Provo, Utah, United States | USD 172 M | USD 341.04 M | 11,275 | |
Utility-scale renewable energy projects are developed by Enel X. | 2001 | Boston, Massachusetts, United States | USD 168.67 M | |||
IoT connectivity platform from prototype to production is developed. | 2011 | San Francisco, California, United States | USD 134.87 M | 109 |
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Related news about Radiant Nuclear
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Frequently Asked Questions about Radiant Nuclear
Radiant Nuclear was founded in 2019 and raised its 1st funding round 1 year after it was founded.
Radiant Nuclear is headquartered in Los Angeles, United States. It is registered at Los Angeles, California, United States.
Doug Bernauer is the CEO of Radiant Nuclear, as recorded in our data. They have also founded this company.
Radiant Nuclear is a funded company, having raised a total of $517.96M across 7 funding rounds to date. The company's 1st funding round was a Angel Round of $1.2M, raised on Sep 2020.
Radiant Nuclear has 586 employees.
Radiant Nuclear was founded in 2019 and is based in Los Angeles, United States. Operations center on the nuclear energy sector, where transportable microreactors are developed to deliver low-carbon electricity, district heating, and support for industrial processes. The technology is tailored for reliable energy solutions across various remote and on-site uses, with a focus on modular deployment.
Radiant Nuclear's top competitors include TerraPower, NuScale Power and Oklo.
Radiant Nuclear has 31 investors. Key investors include Tribe Capital, Draper, SBIR, McKinley Capital, and Alaska Growth Capital.
The valuation of Radiant Nuclear is $1.8B as of Dec 2025.
Radiant Nuclear operates through Radiant Industries, Inc.