Know what’s really happening at
Radiant before you sign on.
- On the roadmap
- Nuclear Energy
- Energy Infrastructure
- Defense Technology
Radiant is building Kaleidos, a truck-transportable 1 MW nuclear microreactor designed to roll off a factory line like an aircraft engine — aimed at replacing diesel generators at military bases, data centers, and remote sites. Its Series D valued the company at a reported $1.8B.
How we do it.
Most "AI market intel" is a summarized crawl of press releases. This Altis research is built from our knowledge graph of sector expert calls, synthesized with public sources.
Radiant
- Founded (El Segundo, CA)
- 2020
- Kaleidos reactor output
- 1 MW
- Series C led by DCVC (2025)
- $165M
- Series D raised, over (Dec 2025)
- $300M
- Reported Series D valuation
- $1.8B
- Planned Oak Ridge factory capacity (up to)
- 50 microreactors per year
- Equinix pre-order
- 20 microreactors
- Initial customer deployments planned
- 2028
Press reported
Altis Verified
What's in the report
Most "AI market intel" is a summarized crawl of press releases. This is what customers, competitors, and former employees actually told us.
Market Overview
Market structure, where the company sits, and growth drivers.
- market map
- Nuclear Energy landscape
- Nuclear Energy growth rate
- CAGR
Total Addressable Market
Bottom-up TAM / SAM / SOM.
- Radiant TAM
- Nuclear Energy market size
- market opportunity
Company Overview
What the company does and how it operates.
- what does Radiant do
- Radiant product
- business model
Product / Go-to-Market
Product, GTM motion, ICP, and who buys.
- Radiant customers
- who uses Radiant
- Radiant ICP
- go-to-market
Competitive Dynamics
The Altis Market Map and the Altis Win-Rate Index.
- Radiant competitors
- Radiant alternatives
- who competes with Radiant
- Radiant win rate
Customer Signals
Retention, satisfaction, and win/loss signals.
- Radiant reviews
- Radiant NRR
- Radiant churn
- current customers
- switching costs
Investment Debates
Investment thesis, moat, bull/bear, and key risks.
- Radiant investment thesis
- Radiant moat
- bull case bear case
- Radiant risk factors
Monetization & Financials
Business model, revenue model, and unit economics.
- Radiant ARR
- Radiant revenue
- Radiant valuation
- unit economics
Team and culture
Founders, leadership, and org.
- Radiant founders
- Radiant CEO background
- leadership team
- headcount
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Based on public reporting and company announcements as of July 2026.