newcleo
Startup · Turin, Italy
newcleo develops Generation IV lead-cooled fast reactors (LFRs) fuelled by recycled nuclear waste, targeting a closed-fuel-cycle that dramatically reduces long-term radioactive waste. Founded in 2021 by Stefano Buono — previously founder of NASDAQ-listed nuclear medicine company Advanced Accelerator Applications, acquired by Novartis for $3.9 billion — newcleo has raised over $755 million to date, including $85 million in early 2026. The company is building PRECURSOR, a 10 MW non-nuclear lead-cooled test system at ENEA's Brasimone Research Center in Italy, with a full demonstration reactor planned for France by 2032 and €28 million invested in Turin research facilities.
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