Radiant
17 known investors
Radiant Nuclear develops Kaleidos, a portable nuclear microreactor designed to replace diesel generators for remote locations and provide resilient backup power to hospitals, datacenters, and military installations.
Founders & leadership
DB
Doug BernauerFounder & CEO
Investors · 17
Acequia Capital (AceCap)Seattle · $100K – $5M
Andreessen HorowitzMenlo Park · $500K – $50M
Beyond CapitalLondon
Cantos VenturesSan Francisco · $400K – $1.5M
Crosscut VenturesLos Angeles · $250K – $750K
DCVC (Data Collective)Palo Alto · $5M – $25M
Decisive PointWashington · $500K – $1M
Felicis VenturesSan Francisco · $500K – $15M
Friends & Family CapitalSilicon Valley
Friends Family CapitalSilicon Valley
Gigascale CapitalPalo Alto
Inflection VenturesNew Yorkvia Kabe Roashan · inferred
Launch Alaska Investment FundAnchorage
Nucleation CapitalLynnwood
Partners ResoluteChicago
Union Square Ventures (USV)New York · $1M – $20M
Giant Ventures Global LlpreportedLondon · $2M
In the news
- Radiant’s Spectacular Day; Nuclear Startup Raises Over $300 Million | Neutron Bytesneutronbytes.com · 2025
- El Segundo’s Radiant Hits $1.8B Valuation with $300M Series D for Portable Nuclear Powerlatimes.com · 2025
- Radiant Closes Over $300 Million in Series D Fundingorrick.com · 2025
- Radiant Raises Over $300 Million in New Funding to Mass-Produce Portable Nuclear Reactorsfinance.yahoo.com · 2025
- Radiant Nuclear raises $300M for its semi-sized 1 MW reactor | TechCrunchtechcrunch.com · 2025
- Radiant raises over $300 million to build nuclear microreactors | Reutersreuters.com · 2025