newcleo is a UK-based nuclear technology company, founded in 2021, that develops advanced small modular reactors, particularly lead-cooled fast reactors, ESG Today reported.[1] The company's technology combines lead-cooled fast reactors with fuel manufactured from recycled nuclear materials, with the aim of supplying electricity and heat to industrial users while closing the nuclear fuel cycle.[2] newcleo has submitted regulatory engagement plans to the U.S. Nuclear Regulatory Commission for its LFR-AS-200 reactor and a planned U.S. mixed-oxide (MOX) fuel manufacturing facility (Oct 2026).[3] newcleo says it has more than 900 employees across Europe and the United States (Oct 2026).[3]
newcleo reported revenue from products and services of about €19.4 million for the first half of 2026, up about 46% from the first half of 2025.[3] Its net loss for the first half of 2026 was about €82.0 million, up about 10% year over year, and cash and cash equivalents stood at €66.5 million on June 30, 2026.[3] newcleo says it has licensing, siting, R&D and commercial partnerships in France, Italy, Slovakia and the United States (Feb 2026).[1]
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| Date | Event | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| Sep 22, 2026 | ipo | $247M | — | newcleo (via Yahoo Finance) |
newcleo said it raised over $124 million in 2025, ESG Today reported.[1] In February 2026 newcleo announced a €75 million (US$88 million) funding round with new investors Danieli & C, Cementir Holding, Orion Valves and NextChem, and existing investors Kairos, Indaco Ventures, Azimut Investments, the CERN pension fund and Walter Tosto.[1] On September 21, 2026, newcleo completed its business combination with SPAC NewHold Investment Corp. III, which valued newcleo at a pre-money equity value of about $2.4 billion.[2] The newcleo deal produced about $247 million in gross proceeds, made up of an oversubscribed $216 million PIPE and $31 million from NewHold's trust account, with up to $75 million more possible under a forward purchase agreement.[2] newcleo also raised about $18.7 million in additional financing unrelated to the business combination, the company reported in October 2026.[3]
This fall's IPO pipeline is splitting between companies actually pricing and trading -- newcleo, Electra Therapeutics -- and a growing backlog of filed-but-not-priced names including Nscale and Wella, some sitting for weeks without terms.
Newcleo, a French-Italian startup building lead-cooled small modular reactors fueled by recycled nuclear waste, began trading on Nasdaq under ticker NWCL after closing a $2.4 billion SPAC merger with NewHold Investment Corp III.
newcleo's ordinary shares trade on the Nasdaq Global Select Market under the ticker NWCL, and its warrants under NWCLW, starting September 22, 2026.[2]
Yes; newcleo became public on September 22, 2026, after completing its business combination with NewHold Investment Corp. III.[2]
The NewHold transaction valued newcleo at a pre-money equity value of about $2.4 billion (Sep 2026).[2]
newcleo reported about €19.4 million in revenue from products and services for the first half of 2026, up about 46% year over year, with a net loss of about €82.0 million.[3]
Investors in newcleo's February 2026 round included Danieli & C, Cementir Holding, Orion Valves, NextChem, Kairos, Indaco Ventures, Azimut Investments, the CERN pension fund and Walter Tosto.[1] Its September 2026 listing was backed by an oversubscribed $216 million PIPE.[2]
Stefano Buono is newcleo's co-founder and CEO; the company was founded in 2021.[2],[1]
Newcleo's most recent revenue figure is ~€19.4M (H1 2026), reported by newcleo (via Markets Insider), June 2026.
Newcleo was founded in 2021, according to Wikidata.
Figures are labelled Reported (a source states it), Estimated, Derived (computed from other facts) or Rumored (in talks / unconfirmed). Rumors never replace a confirmed figure. Each figure keeps its own as-of date; history is preserved rather than overwritten.
