S
Stellaria
STELLARIA provides is a new nuclear energy solutions for centuries
About Stellaria
Stellaria Energy is a pioneering company in the nuclear energy sector, focusing on the development and deployment of Small Modular Reactors (SMRs) with a capacity of 100MWe. These reactors are designed to be safe, efficient, and environmentally friendly, featuring a 'safe by design' approach that eliminates the risk of catastrophic failures like Fukushima. The company leverages molten salt technology, which offers a compact and high-density energy storage solution, making it a viable alternative to traditional coal and lithium-ion batteries. Stellaria Energy's SMRs are capable of stabilizing power levels rapidly, making them ideal for complementing renewable energy sources and handling the fast-changing loads of industrial facilities. The reactors also have the unique ability to regenerate their own fuel and burn old nuclear waste, contributing to a sustainable and long-term energy solution. Stellaria Energy serves a diverse range of clients, including industrial facilities and energy providers, operating in the high-value segment of peak load power production. The company's business model revolves around the sale and maintenance of these advanced reactors, generating revenue through long-term contracts and service agreements. Keywords: Nuclear energy, SMR, molten salt technology, CO2 net zero, intrinsic safety, energy storage, renewable complement, fuel regeneration, industrial power, peak load production.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2023
- Headquarters
- Grenoble, France
- Employees
- 29
- Open positions
- None listed
- Dealroom signal
- 89.3/100
- Sub-industry
- Clean Energy
- Sector
- Energy, Spinout, Sustainable Development Goals, Nuclear Fission, Climate Tech, Novel Energy, Energy and Greentech, Observatoire Deeptech, Greentech, NIF defense security and resilience
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| GRANT✓Other financing | Jul 2025 | $11M | — | France 2030 | ↗ |
| EARLY VC✓Equity / VC | Jul 2025 | $25M | $101M | CEA Investissement · Audacia · Supernova Invest · At One Ventures | ↗ |
Growth signals
Latest recorded traffic for Stellaria is 1.5K monthly website visits, up 25% over the last three months. Stellaria's team grew 70.6% over the past year.
Similar companies
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed6 investors entered at this stage
Technip Energies
CEA Investissement
Audacia
Schneider Electric
Supernova Invest
France 2030
Series A2 investors entered at this stage
At One Ventures
Exergon
Other known investors1 additional known investor
French Alternative Energies and Atomic Energy Commission - CEA
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Stellaria on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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