Radical
YC W23Seattle, US · Founded 2022 · 6 employees · 2 known investors
Radical Aero builds StratoSats, autonomous solar-powered aircraft that operate at 65,000 feet for extended periods to deliver persistent high-performance infrastructure. The company develops stratospheric platforms for communication and data services.
Advanced ManufacturingDeep TechDefense TechHardwareSpace TechDronesSatellitesAerospacein /radicalaero@radicalaero
Founders & leadership· Y Combinator alumni (W23)
James ThomasinFounder
Cyriel NotteboominFounder
Investors · 2
In the news
- Prime Intellect Raises $130M Series Athesaasnews.com · 2026
- Radical Numerics Raises $50M in Seed Fundingfinsmes.com · 2026
- Generalist AI raises $400M in funding round led by Radical Ventures, hitting $2B valuationcryptobriefing.com · 2026
- Radical Ventures Raises $15.0 | Signalbasetrysignalbase.com · 2026
- Radical AI Raises $55M in Seed Fundingfinsmes.com · 2025
- Radical Raises $4.5M in Seed Fundingfinsmes.com · 2024
- Radical thinks the time has come for solar-powered, high-altitude autonomous aircraft | TechCrunchtechcrunch.com · 2024