Renaissance Fusion
Renaissance Fusion is a hardware research and development company that designs and builds stellarator fusion reactors. It utilizes proprietary high-temperature superconducting (HTS) magnets and liquid-metal wall technologies to develop stable and efficient nuclear fusion energy systems.
verified 17 July 2026
↗ Stellarator Fusion Technology & HTS Magnets | Renaissance Fusion — Renaissance Fusion↗ About Renaissance Fusion | European Stellarator Startup↗ Fusion Energy FAQ | Stellarators, HTS & Liquid Metals — Renaissance Fusion↗ Renaissance FusionFact sheet
- Founded in 2020↗ Renaissance Fusion - Products, Competitors, Financials, Employees, Headquarters Locations↗ About Renaissance Fusion | European Stellarator Startup↗ Renaissance Fusion↗ Fusion Scientists & Engineers Team | Renaissance Fusion — Renaissance Fusion↗ Fusion Energy FAQ | Stellarators, HTS & Liquid Metals — Renaissance Fusion
- HQ in Grenoble, France↗ Renaissance Fusion - Products, Competitors, Financials, Employees, Headquarters Locations↗ About Renaissance Fusion | European Stellarator Startup↗ Renaissance Fusion↗ Fusion Scientists & Engineers Team | Renaissance Fusion — Renaissance Fusion↗ Fusion Energy FAQ | Stellarators, HTS & Liquid Metals — Renaissance Fusion
- Key technologies: stellarators, high-temperature superconducting (HTS) magnets, liquid metal shields↗ Renaissance Fusion - Products, Competitors, Financials, Employees, Headquarters Locations↗ About Renaissance Fusion | European Stellarator Startup↗ Renaissance Fusion↗ Fusion Scientists & Engineers Team | Renaissance Fusion — Renaissance Fusion↗ Fusion Energy FAQ | Stellarators, HTS & Liquid Metals — Renaissance Fusion
- Notable investors: Lowercarbon Capital, Crédit Mutuel Impact, Bpifrance↗ Renaissance Fusion - Products, Competitors, Financials, Employees, Headquarters Locations↗ About Renaissance Fusion | European Stellarator Startup↗ Renaissance Fusion↗ Fusion Scientists & Engineers Team | Renaissance Fusion — Renaissance Fusion↗ Fusion Energy FAQ | Stellarators, HTS & Liquid Metals — Renaissance Fusion
- 90–100 employees (~50% YoY growth)↗ Post by Renaissance Fusion · 2026-07-16
- Operates in 5 countries: France, Italy, Netherlands, United Kingdom, and Morocco↗ Post by Renaissance Fusion · 2026-07-16
- $50.8M total funding raised across 3 funding rounds↗ Post by Renaissance Fusion · 2026-07-16
- Closed Europe's largest-ever private fusion funding round (as of July 2026)↗ Europe's biggest private fusion round ever has just closed, France and Germany signed a Joint Declaration of Intent on fusion cooperation last Friday, and the Commission's Strategic Research and Innovation Agenda lands … | FusionX Group · 2026-07-21
Connections
- Fusion Industry Association — Renaissance Fusion is a member company tracked by the Fusion Industry Association in its annual private fusion sector funding survey.↗ Fusion Industry Attracts Record Annual Funding of $4.48bn, Raising Total to $14.24bn - Fusion Industry Association
- Intuitive Surgical — Renaissance Technologies LLC trimmed its institutional position in Intuitive Surgical (ISRG) shares by 8.8% as of July 2026.↗ Intuitive Collaborates with Deion "Coach Prime" Sanders to Raise Patient Awareness of Surgical Options
Recent developments
Renaissance Fusion has closed what is being described as Europe's biggest-ever private fusion funding round, surpassing its prior $50.8M total funding raised.
Read more ↗linkedin.com21 JulRenaissance Fusion now has 90–100 employees (up ~50% year-over-year) and operates across 5 countries, including Italy, the Netherlands, the United Kingdom, and Morocco, in addition to its Grenoble headquarters.
Read more ↗linkedin.com16 JulRenaissance Fusion closed a $34M Series A round in March 2025, according to a nuclear fusion startup funding analysis. The round is categorized under magnetic confinement fusion, with the company's approach described as stellarator fusion with liquid-metal walls.
Read more ↗newmarketpitch.com13 Jul