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
newcleo
Developing Lead Fast SMRs to provide the world with a safe, stable power source and reduce volumes of radioactive waste
576 employees · est. 2021 · Paris, France
Blykalla is the older company (2013 vs 2021); newcleo is the larger of the two.
Side-by-Side Comparison
| Metric | Blykalla | newcleo |
|---|---|---|
| Founded | ||
| Founded | 2013 older | 2021 |
| Headquarters | ||
| Headquarters | Stockholm, Sweden | Paris, France |
| Employees | ||
| Employees | 77 | 576 larger |
| Industry | ||
| Industry | Not tracked yet | Energy, Clean Energy |
| Funding Stage | ||
| Funding Stage | Unknown | Unknown |
| Total Funding | ||
| Total Funding | $124.74M | $648.00M |
| Funding Rounds | ||
| Funding Rounds | 8 | 5 |
| Services | ||
| Services | Development and Construction of Small Modular Reactors, Nuclear Reactor Technology Innovation, Decarbonization Solutions, Safe and Scalable Baseload Energy Provision | data analysis, user behavior tracking, privacy and consent management |
| Target Customers | ||
| Target Customers | Global Utilities, Industrial Sectors, Data Centers, Countries looking to transition to Fossil-free Energy | website administrators, businesses with online presence, companies interested in data-driven decisions |
| Taxonomy | ||
| Taxonomy | 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 | Lead-Cooled Fast Reactors, Small Modular Reactors, Nuclear Energy Innovation, Closed Nuclear Fuel Cycle, Mixed Oxide Fuel Manufacturing, Radioactive Waste Recycling, Advanced Modular Reactors, Gen-IV Nuclear Technology, Liquid Lead Cooling, Nuclear Waste Management, Energy Technology Development, Low Carbon Energy Solutions, Nuclear Engineering, Reprocessed Nuclear Fuel, Nuclear Supply Chain Development |
| Website | ||
| Website | blykalla.com | newcleo.com |
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...
About newcleo
newcleo, founded in 2021 and headquartered in France, is rapidly emerging as a leader in the nuclear energy sector. Their slogan, "Developing Lead Fast SMRs to provide the world with a safe, stable power source and reduce volumes of radioactive waste," encapsulates their innovative approach. The com...
We will tell you when either one moves
BounceWatch watches Blykalla and newcleo for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Blykalla and newcleo — by email.
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Compiled from the BounceWatch company index. We last looked at Blykalla on 13 Nov 2025, and newcleo on 2 Mar 2026. 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.