Stellaria

About Stellaria

Stellaria is a company focused on reinventing sustainable nuclear energy with fast neutron technology. Their mission is to provide revolutionary energy solutions through the Stellarium, the world's first liquid core reactor capable of renewing 100% of its fuel during operation, burning long-lived high-activity waste, and achieving groundbreaking intrinsic safety levels. They aim to decarbonize industries with powerful, compact, and cost-effective energy solutions while promoting an environmentally integrated and sustainable industrial image.

Products & Services

Stellarium Reactor:An advanced molten salt reactor (AMR-MSR) designed to provide powerful, compact, and low-cost energy for industrial applications, emitting 99% less CO2 per MWh compared to gas and coal plants. It supports deep and competitive decarbonization, renews 100% of its fuel during operation, and incinerates high-activity waste.

Electricity, E-fuels, and High-Temperature Steam Solutions:Tailored energy solutions for industrial sites such as petrochemical plants, mines, and data centers, offering autonomy, robustness, safety, and sustainability to electrify industrial processes and support reindustrialization.

Specialties

Fast Neutron Nuclear Energy Molten Salt Reactor Technology Sustainable Energy Solutions Industrial Decarbonization Nuclear Waste Management

Funding History

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#	Type	Amount Fields	Date Fields	Investors
1	RT: Unspecified Round T: - FT: Unspecified Round	A: 25200000 MR: - FA: €23 million FAN: 25200000	D: 2025-07-24 FD: 2025-07-24	6 investors

Unspecified Round Latest

2025-07-24

$25.2M

6 investors (Pro only)

Growth Metrics

+45%

Employee Growth

YoY

3.2x

Funding Growth

Last Round

12

Markets

Operating

10K+

Customers

Active

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Mock Up

Team & Leadership

B

Bruno Desbrière

Founder and Safety Expert

A

Antoine Gerschenfeld

Founder and Deputy Technical Director

L

Lucas Tardieu

Founder and Reactor Architect

N

Nicolas Breyton

Founder and CEO

G

Guillaume Campioni

Founder and Technical Director

Y

Yoann Bomchil

Experimental Mechanical Engineer

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Recent News

Stellaria Announces New Product Launch

2 days ago

Company unveils innovative solution to transform the industry, expanding market reach and capabilities...

Leadership Team Expands with Industry Veteran

1 week ago

New executive brings 20+ years of experience to accelerate growth and strategic initiatives...

Company Recognized as Industry Leader

2 weeks ago

Receives prestigious award for innovation and customer satisfaction in competitive market...

Key Competitors

C1

Competitor Alpha

Series B · $50M raised

C2

Competitor Beta

Series C · $120M raised

C3

Competitor Gamma

Series A · $25M raised

C4

Competitor Delta

Seed · $10M raised