Stellaria

Raised $26.6M in a Series A round, announced 17 July 2025.

Total raised
$26.6M

Latest round Series ACountry FranceSector Climate & Energy

Round

$26.6MSeries A, 17 July 2025

Funds technical and regulatory studies for a first molten salt facility targeted for 2029; excludes EUR 10M France 2030 grants.

Amount
$26.6M
Stage
Series A
Announced
17 July 2025
Lead
At One Ventures
Other investors
Supernova Invest, CEA Investissement, Schneider Electric, Exergon, Technip Energies
Use of funds
Funds technical and regulatory studies for a first molten salt facility targeted for 2029; excludes EUR 10M France 2030 grants.
Checked
Amount and date matched across 3 press sources
Sources
French start-up Stellaria raises €23 million for its molten-salt nuclear reactor - PR Newswire maddyness.com
French start-up Stellaria raises €23 million for its molten-salt nuclear reactor prnewswire.com
French start-up Stellaria raises €23 million for its molten-salt nuclear reactor - PR Newswire funding.tech.eu
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Company

Develops a fast-neutron molten salt nuclear reactor on a closed fuel cycle

Based in
France
Sector
Climate & Energy

Questions

How much has Stellaria raised?

Stellaria raised $26.6M in a Series A round, announced on 17 July 2025.

Who invested in Stellaria?

At One Ventures led. Investors include At One Ventures, Supernova Invest, CEA Investissement, Schneider Electric, Exergon and Technip Energies.