Sweden
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 Janne Wallenius on lead-cooled reactor systems.
The company specializes in designing and building small modular reactors (SMRs) using a lead-cooled technology that promises to deliver safe, scalable, and carbon-free baseload power. This makes Blykalla's technology an ideal complement to renewable energy sources like solar and wind. By focusing on compactness and safety, the design allows for cost-effective mass production.
Recently, Blykalla secured a significant late-stage venture capital investment of €33 million from Oklo as of November 2025, reflecting strong investor confidence and positioning the company as a key player in the energy sector's future.
Holtec International