Stellaria
Last verified 2026-05-08. JSON
The funding figures on this page are attributed, not sourced: a publisher is on record but no document URL is. How we mark provenance.
| Total raised | $27.0Mattributed |
|---|---|
| Latest round | seed, $24.8M, 2025-07-01attributed |
| Founded | 2023 |
| Headquarters | Lyon, France |
| Industry | energy |
| Stage | series-b+ |
| Website | stellaria.energy |
Stellaria is a French nuclear startup, spun out of CEA and Schneider Electric, developing a fast-breeder molten salt reactor called Stellarium. It serves future electricity and industrial-heat customers seeking long-duration, low-waste nuclear power. Its reactor runs on uranium, plutonium, or thorium, regenerating its own fuel for over 20 years.
Funding rounds
| Date | Round | Amount | Lead |
|---|---|---|---|
| 2025-07-01 | seed | $24.8M | undisclosed |
Provenance
| Fact | Status | Basis |
|---|---|---|
| Seed, $24.8M | attributed | sifted named as publisher. No document URL on file. |
| Total raised $27.0M | attributed | sifted named as publisher. No document URL on file. |
| Company existence | self-reported | stellaria.energy, read 2026-05-08 |
| Description | self-reported | stellaria.energy, read 2026-05-08 |
Nothing on this page is sourced yet. A sourced fact links to a document that states it.
Change history
No change recorded since records began on 2026-09-24.