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Newcleo

London, United Kingdom · Energy · 1,000 employees

Nuclear technology company Newcleo has closed €300m (£258m) to fund the construction of its first nuclear sites in the UK and France.The London-headquartered startup says it plans to build its Generation IV nuclear reactors capable of extracting energy from nuclei in a renewable and safe way. The energy tech company will also use the capital for building its prototype reactors in the UK and France

Funding history

  • Funding Round — $75.0M — Feb 2026
  • Series A — $135.0M — Oct 2024
  • Funding Round — $258.0M — Jun 2022

Recent signals

  • May 31, 2026: Newcleo Ltd. Enters into Agreement with NewHold Investment Corp III for Business Combination to Become Public.
  • Feb 04, 2026: Raised $75.0M in Funding Round
  • Jan 09, 2026: newcleo Appoints Elisabeth Rizzotti as Deputy CEO and Jon Stranske as Group CFO
  • Jan 17, 2025: newcleo partners with Slovakian companies on Gen IV reactors
  • Oct 01, 2024: Raised $135.0M in Series A
  • Jun 20, 2022: Raised $258.0M in Funding Round

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