What is Newcleo?
Founded by physicist-entrepreneur Stefano Buono, Newcleo is dedicated to the design and deployment of liquid lead-cooled Advanced Modular Reactors. The company distinguishes itself by integrating a circular economy approach, specifically focusing on the production of nuclear fuel from reprocessed waste. This innovative methodology not only addresses the critical need for abundant, competitive energy but also tackles the long-term challenges associated with nuclear waste management. With a global team of experts, Newcleo operates at the intersection of high-tech engineering and industrial manufacturing, aiming to deliver a scalable, safe, and carbon-neutral energy future.
How much funding has Newcleo raised?
Newcleo has raised a total of $521.8M across 3 funding rounds:
Angel/Seed
$118M
Unspecified
$315.8M
Other Financing Round
$88M
Angel/Seed (2021): $118M with participation from Exor Seeds, Club degli Investitori, and LIFTT
Unspecified (2022): $315.8M, investors not publicly disclosed
Other Financing Round (2026): $88M supported by Kairos International Sicav, Danieli, Walter Tosto SpA, Azimut Investments, Orion SpA, CERN, Indaco, Cementir, and NextChem
Key Investors in Newcleo
Club degli Investitori
An active network of business angels in Italy that provides both financial backing and deep professional expertise to support innovative startups and scale-ups.
Danieli
A long-standing Italian supplier of equipment and physical plants to the metal industry, providing critical technical services across the product value chain.
Indaco
The largest independent Italian venture capital asset management firm, specializing in high-growth technology sectors including robotics, biotech, and digital innovation.
What's next for Newcleo?
With the recent injection of $88M, Newcleo is poised to intensify its operational roadmap, focusing on the industrialization of its reactor technology and the expansion of its supply chain partnerships. The company is expected to prioritize the development of its proprietary fuel manufacturing capabilities and the refinement of its lead-cooled reactor designs. As the firm moves toward commercialization, the strategic alignment with industrial partners will be instrumental in navigating the complex regulatory and technical requirements of the nuclear sector. Future milestones will likely center on pilot plant construction and the scaling of its manufacturing footprint to meet the growing demand for clean, baseload power across global markets.
See full Newcleo company page