Private company

Radiant Nuclear

American nuclear technology company

Radiant Industries Inc., commonly known as Radiant Nuclear, is an American nuclear energy company based in El Segundo, California, that designs and markets small modular reactors. The company is developing a 1 MWe portable microreactor called Kaleidos.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Radiant Industries Inc., commonly known as Radiant Nuclear, is an American nuclear energy company based in El Segundo, California, that designs and markets small modular reactors. The company is developing a 1 MWe portable microreactor called Kaleidos.2

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