Radiant

United States
El Segundo, California, United States, 90245

Company profile

Radiant company profile

Radiant is a technology company that develops portable nuclear microreactors designed to generate electricity and heat in a compact, factory-built form. The company’s flagship product, Kaleidos, is engineered to be transportable to customer sites and to replace traditional power sources such as diesel generators for applications including backup power and continuous energy supply. Radiant manages design, assembly, fueling, and testing of its reactors with a focus on modular deployment and energy generation without on-site water requirements. It also undertakes infrastructure planning for reactor production facilities to support broader availability of its microreactors. Radiant engages with regulatory processes and industry partners to advance testing and commercialization of its nuclear energy solutions.

Business identity

Contact email
[email protected]
Phone number
(424) 290-3080
Operating status
Active
Company type
For Profit
Employee range
101-250 employees
Revenue range
$1M-$10M
Founded
2019-05-16

Headquarters

Postal code
90245
Country code
US
Continent
North America

Capital profile

Funding and company signals

Funding stage
Late Stage Venture
Funding rounds
5
Total equity funding
$518.8M
Last funding
Series D / $300M / 2025-12-17
Last equity funding
Series D / $300M
Investors
38
Lead investors
6
Founders
2
Articles
62

Founders and investors

Founders

Bob UrbergerDoug Bernauer

Lead investors

Alumni VenturesAndreessen HorowitzBoost VCDCVCDraper AssociatesUnion Square Ventures

Investors

Alumni VenturesAndreessen HorowitzFelicisTribe CapitalUnion Square Ventures