Startup · Sweden
Blykalla
HQ Sweden
Blykalla is a global leader in advanced lead-cooled nuclear technology, commercializing the next generation of clean energy through its reactor, the SEALER.
Funding5 rounds · $65.0M + €2.5M
- Disclosed
- $65.0M + €2.5M
- Latest
- $50.0MSeries B · Dec 18, 2025
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Dec 18, 2025 | Series B | $50.0M | — | Armada Investment AG, Norrsken Launcher, Oklo | Nucleation Capital | Confirmed |
| Feb 17, 2025 | Grant | €2.5M | — | European Innovation Council | — | Confirmed |
| Sep 10, 2024 | Series A | $7.7M | — | 92 Ventures, Armada Investment AG | — | Confirmed |
| Apr 17, 2024 | Series A | $7.3M | — | Norrsken Launcher, Nucleation Capital | — | Confirmed |
| 2022 | Seed | Undisclosed | — | Norrsken Launcher, Uniper | — | Confirmed |
- $50.0MDec 18, 2025
- €2.5MFeb 17, 2025
- $7.7MSep 10, 2024
- $7.3MApr 17, 2024
- Undisclosed2022
Totals add known amounts using recorded USD conversions where available; other currencies are shown separately. A ~ marks an estimated amount.
Sources8
Profile2
- 1
Sixth-Domain · Supports Organization · country, Organization · kind
“{"country": "Sweden", "hq_iso2": "SE", "id": "f383632d-53d4-4026-bf22-82c4e689c9f7"}”
- 2
Blykalla · Supports Organization · description, Organization · name, Organization · website
“Blykalla is a global leader in advanced lead-cooled nuclear technology, commercializing the next generation of clean energy through its reactor, the SEALER.”
Funding6
- 3CompanyBlykalla raises $50M to accelerate industrialization of its lead-cooled advanced reactor, the SEALER
Blykalla · Dec 18, 2025 · Supports Funding round · amount
“Blykalla has raised $50 million in capital to accelerate the industrialization and commercialization”
- 4
Blykalla · Feb 17, 2025 · Supports Funding round · amount
“consisting of a €2.5m grant and €15m in equity investment from the EU”
- 5CompanyBlykalla doubles Series A round to 160 mSEK and welcomes Chirayu Batra to its Board of Directors
Blykalla · Sep 10, 2024 · Supports Funding round, Funding round · amount
“The extension is led by Danish entrepreneur Joachim Ante’s investment firm 92 Ventures and Swiss Daniel S. Aegerter’s investment group Armada”
- 6CompanyBlykalla closes funding round of 80 mSEK for continued industrialization of its lead-cooled SMRs
Blykalla · Apr 17, 2024 · Supports Funding round, Funding round · amount
“The round was led by Norrsken Launcher together with Nucleation Capital”
- 7
NucNet · Apr 17, 2024 · Supports Funding round
“raising a total of about $7.3m (€6.8m)”
- 8
Nordic 9 · Supports Funding round
“Blykalla raised $50 million in a series B deal co-led by Oklo Inc, Norrsken Launcher, and ARMADA Investment”
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