Company record
A clear public starting point.
This page gathers the company’s published description, taxonomy, status, and official link in one place. It does not make claims about private activity or deal terms.
Startup in Sahin’s portfolio
Radiant Nuclear: funding and company profile
Small modular nuclear reactor technology
Key Investors
- Sahin Boydas (Angel)
- Andreessen Horowitz (a16z; American Dynamism)
- DCVC
- Union Square Ventures
- Felicis
- Washington Harbour Partners LP
- Chevron Technology Ventures
- Founders Fund
- Decisive Point
- McKinley Alaska
- Boost VC
- Also Capital
- Giant Ventures
- StepStone
- Hanwha Asset Management Venture Fund
- SGA
- Crossbeam Venture Partners
- Align Ventures
- ARK Venture Fund
- Gigascale Capital
- HartBeat Ventures
- Pax Ventures
- Draper Associates
- Nucleation Capital
- Friends & Family Capital
- Lockheed Martin Ventures
Funding Timeline
| Round | Raised | Date |
|---|---|---|
| Series D | >$300M | 2025-12-17 |
| Series C | $165M | 2025-05-28 |
Total raised: $300MCompany value: Valued at $1.8B
Why I Invested
As an angel investor in 234 startups across 14 categories, I look for companies with exceptional founders, large addressable markets, and clear competitive advantages. Radiant Nuclear stood out in the Cleantech space.