Blykalla
Blykalla is developing and building small modular lead-cooled reactors to deliver the next generation of clean energy.
77 employees · est. 2013 · Stockholm, Sweden
Blykalla is the older company (2018 vs 2013); Blykalla is the larger of the two.
Side-by-Side Comparison
| Metric | Avalanche Energy | Blykalla |
|---|---|---|
| Founded | ||
| Founded | 2018 | 2013 older |
| Headquarters | ||
| Headquarters | Seattle, United States | Stockholm, Sweden |
| Employees | ||
| Employees | 50 | 77 larger |
| Industry | ||
| Industry | Energy, Renewable Energy | Not tracked yet |
| Funding Stage | ||
| Funding Stage | Grant | Unknown |
| Total Funding | ||
| Total Funding | $55.00M | $124.74M |
| Funding Rounds | ||
| Funding Rounds | 5 | 8 |
| Services | ||
| Services | Compact fusion power generation, High-energy neutron production, Advanced testing facilities | Development and Construction of Small Modular Reactors, Nuclear Reactor Technology Innovation, Decarbonization Solutions, Safe and Scalable Baseload Energy Provision |
| Target Customers | ||
| Target Customers | Data centers, Remote locations, Disaster relief organizations, Defense sector, Space research organizations | Global Utilities, Industrial Sectors, Data Centers, Countries looking to transition to Fossil-free Energy |
| Taxonomy | ||
| Taxonomy | Fusion Energy, Micro-Fusion Reactors, Clean Energy, Distributed Energy, Modular Reactor Design, Energy Density, Decarbonization, Rapid Prototyping, Energy Innovation, Scalable Energy Solutions, Energy Mobility, Reactor Architecture, Sustainable Technology | Small Modular Reactors, Lead-Cooled Reactors, Clean Energy, Baseload Power, Green Technology, Scalable Energy Solutions, Deep-Tech, Safety Analysis, Reactor Design, Mass Production, Carbon-Free Energy, Renewable Energy Complement, Energy Innovation, Nuclear Technology |
| Website | ||
| Website | avalanche.energy | blykalla.com |
About Avalanche Energy
Avalanche Energy, founded in 2018, is an innovative startup based in Seattle, WA, at the forefront of the Energy and Renewable Energy sectors. The company lives by its slogan, "Making Science Fiction Real," as it undertakes the ambitious task of designing and producing micro fusion reactors that sta...
About Blykalla
Blykalla, a Swedish deep-tech company founded in 2013, is positioned to transform the global energy landscape with its innovative approach to clean energy. Established as a spin-off from the Royal Institute of Technology in Stockholm, Blykalla leverages over two decades of research led by co-founder...
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Funding, hiring, leadership and stack changes at Avalanche Energy and Blykalla — by email.
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Compiled from the BounceWatch company index. We last looked at Avalanche Energy on 18 Aug 2025, and Blykalla on 13 Nov 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.