Radiant Nuclear is a private company building in nuclear power (small modular reactors), founded in 2020. The stock is not listed on any public market.
1 valuation. The latest, $1.8B, was set by the Series D (extended) in Dec 2025.
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Andreessen HorowitzLEADDCVCAndreessen HorowitzRadiant Industries, known as Radiant Nuclear, is an American nuclear energy company based in El Segundo, California. Former SpaceX engineer Doug Bernauer founded the company in 2020 after finding no manufacturers of small nuclear reactors for space use, and it now designs Kaleidos, a 1 MW portable microreactor built to fit inside a single shipping container and replace diesel generators at hospitals, remote sites and military bases.
The US Department of Energy selected Radiant to demonstrate Kaleidos at Idaho National Laboratory, the US Air Force is deploying its reactors at Buckley Space Force Base, and in 2026 the US Army awarded the company $750 million to build 15 Kaleidos units at Fort Benning.
Listed funds carry late-stage private names. A fund's latest schedule of investments shows whether it holds Radiant Nuclear.
Often trade at a premium or discount to NAV.
Platforms match existing holders with buyers. Radiant Nuclear availability at any moment is set by the holders.
High minimums, transfer approval, company right-of-first-refusal.
Valuations, rounds and IPO status for every company in the directory — Radiant Nuclear included.
The routes section explains what is realistically available for a company at this stage.
No. Radiant Nuclear is a private company; its shares do not trade on a public exchange.
Lead investors for each round are in the funding timeline.
The closest nuclear power (small modular reactors) peers are on the competitors page.
Perpetual markets for stocks, gold, indices and pre-IPO names — settled on-chain, no wallet-to-exchange transfers.
