-69%

est. 2Y upside i

Climate TechSeries D+

Radiant is building the world’s first mass-produced portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1 MW failsafe microreactor that can be transported anywhere power is needed. Founded in 2020, Radiant plans to test its first reactor in 2026, with initial customer deployments beginning in 2028.

Rank

#4205

Sector

Nuclear Energy / Clean Energy

Est. Liquidity

~8Y

Data Quality

Data: Medium

High-conviction binary bet on portable nuclear succeeding through 8-12 year regulatory gauntlet. $518M preferences severe.

Last updated: March 22, 2026

Bull (15%)+120%

INL test succeeds; DoD contracts; $5-6B valuation.

Base (50%)-25%

Delays to 2027-2028; more rounds dilute; $2-3B exit post-2032.

Bear (35%)-80%

Technical/regulatory blockers; Oklo gets ahead; down round.

Est. time to liquidity~8.0 years

Preference Stack Risk

severe

Funding Intensity

29%

$518M on $1.8B (28.8%).

Dilution Risk

high

2-3 more large rounds needed.

Secondary Liquidity

limited

Pre-revenue nuclear; thin secondary.

Questions to Ask at the Interview

Strategic questions based on Radiant's data — designed to show you've done your homework.

  • 1

    “INL test milestones?”

  • 2

    “Total capital to first deployment?”

  • 3

    “Oklo competitive positioning?”

Community

Valuation Sentiment

Our model estimates -69% upside. What do you think?

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Disclaimer: This analysis is AI-generated and does not constitute financial or career advice. Always conduct your own due diligence.