Stellaria
Founded 2023 · 31 employees on LinkedIn · 2 known investors
Stellaria develops the Stellarium, a molten salt nuclear reactor designed for stable, passive operation with high thermal efficiency (over 45%) and enhanced safety through underground installation and multiple containment barriers. The reactor produces electricity or high-temperature heat for industrial applications including power generation for cities and manufacturing facilities.
Founders & leadership
Stellaria was founded in 2023 by Nicolas Breyton.
NB

Nicolas BreytoninFounder · Chief Executive Officer
Investors · 2
In the news
Startup Funding News Today, August 26, 2026: Emerald AI, Gatik, Stellaria & More - Tech Startupstechstartups.com · Aug 2026
Stellaria Raises AED 25M Seed Funding for Geospatial AI Growthspacetech-gulf.com · Aug 2026
Stellaria Raises $6.8 Million at a $114 Million Valuation | إنت عربي | entARABIentarabi.com · Aug 2026
Emirati Stellaria raises $6.8 million to develop mapping and data solutions | Jawlahjawlah.co · Aug 2026Frequently asked questions
- What does Stellaria do?
- Stellaria develops the Stellarium, a molten salt nuclear reactor designed for stable, passive operation with high thermal efficiency (over 45%) and enhanced safety through underground installation and multiple containment barriers. The reactor produces electricity or high-temperature heat for industrial applications including power generation for cities and manufacturing facilities.
- Who founded Stellaria?
- Stellaria was founded by Nicolas Breyton in 2023.
- Who are Stellaria's investors?
- Stellaria's investors include At One Ventures, Supernova Invest.

