Radiant Industries

Radiant Industries, Inc. is a US-based company specializing in innovative portable nuclear microreactors, designed to efficiently replace traditional diesel generators across various applications, promoting cleaner energy solutions for military and commercial sectors. Founded in 2020 and headquartered in El Segundo, US, Radiant Industries, Inc. focuses on developing portable nuclear microreactors. In December 2025, Radiant Industries, Inc. CEO Doug Bernauer leads the company’s vision and strategy as it continues to grow in the energy sector. Radiant Nuclear's core product offering is the Kaleidos portable nuclear microreactor, designed to replace diesel generators in diverse applications such as remote villages, hospitals, datacenters, and military installations. This compact reactor generates electricity in a mass-producible format, highlighting its efficiency and mobility.9 MW of thermal power suitable for facility heating and water desalination. These reactors utilize passive air cooling with no on-site water requirements, allowing for operational flexibility in various geographical markets, including remote areas that lack reliable power infrastructure. With a focus on reducing reliance on fossil fuels, Radiant Nuclear serves both military and commercial clients, facilitating a transition to clean energy sources without the complications of traditional nuclear power facilities. Radiant Nuclear's revenue model is primarily based on direct sales and Power Purchase Agreements (PPAs) associated with the Kaleidos microreactor. Clients engage with the company through structured transactions, acquiring units that are factory-assembled, fueled, and tested prior to deployment. Each reactor can be operational within a day of delivery, enhancing the efficiency of the supply chain and reducing downtime for customers. The company's client base includes military organizations and commercial entities looking for reliable alternative energy solutions, positioning Kaleidos as a flagship product that addresses high energy demands while minimizing environmental impact. Revenue generation will be supported by ongoing service agreements for maintenance and refueling, as the reactors can be refueled multiple times throughout their 20-year lifespan.

1. Series D

   Dec 15, 2025

   Amount

   $269M

   Investors

   Locked

2. Series C

   Feb 13, 2025

   Amount

   $66M

   Investors

   Locked

3. Series C

   Oct 23, 2024

   Amount

   $100M

   Investors

   Locked

4. Series B

   Apr 4, 2023

   Amount

   $41M

   Investors

   Locked

5. Series A

   Feb 18, 2022

   Amount

   $13M

   Investors

   Locked