
newcleo is the brand of the Paris-based nuclear energy company developing lead-cooled fast reactors and MOX fuel. Founded in 2021 by Stefano Buono and two colleagues, the company reached Nasdaq in September 2026 through a de-SPAC transaction.
| Brand | Parent Company | Ownership Type |
|---|---|---|
| newcleo | newcleo | Wholly owned |
The brand launched in September 2021 with the acquisition of Hydromine Nuclear Energy and a $118 million capital raise. The name and lowercase styling were chosen to signal a new approach to nuclear energy.
Growth came through funding rounds totaling more than EUR 780 million and partnerships with ENEA, CEA, and European industrial companies. The September 2026 Nasdaq listing via NewHold Investment Corp III raised approximately $247 million, though the stock debuted below the $10 SPAC reference price.
What does newcleo do?
newcleo develops lead-cooled fast reactors, a Generation IV nuclear design intended to be safer and produce less waste than conventional reactors. It also plans a MOX fuel manufacturing operation.
Is newcleo publicly traded?
Yes. newcleo listed on Nasdaq under ticker NWCL in September 2026 through a merger with the NewHold Investment Corp III SPAC.
Who founded newcleo?
Stefano Buono, Luciano Cinotti, and Elisabeth Rizzotti founded the company in September 2021. Buono previously founded Advanced Accelerator Applications, which sold to Novartis for $3.9 billion.
Where is newcleo headquartered?
newcleo is headquartered in Paris, France, with technical operations across Italy, the UK, Switzerland, Belgium, and Slovakia.
Who owns newcleo?
The company is publicly held after its September 2026 de-SPAC. Founders, private investors, and former SPAC shareholders hold the equity.
Did newcleo IPO?
newcleo reached the public market through a SPAC merger rather than a traditional IPO. The September 2026 listing raised approximately $247 million and closed its first day near $8.15, below the $10 SPAC reference price.
No direct competitors found in the same category. This could be because newcleooperates in a unique market segment or we're still building our competitor database.
Looking for brands with different ownership structures? These similar brands are not owned by newcleo, giving you alternative choices that support different corporate structures.
Energy UtilitiesOwned by Adani Group
Adani Green Energy Limited (AGEL) is India's largest renewable energy company by installed capacity, listed on the National Stock Exchange and BSE. It develops, builds, and operates solar and wind power plants across India.
Adani Green Energy is privately owned, unlike newcleo which is under a publicly traded parent company.
Energy UtilitiesOwned by Adani Group
India's largest private thermal power producer, operating approximately 17,550 megawatts of installed capacity across eight states, listed on NSE and BSE.
Adani Power is privately owned, unlike newcleo which is under a publicly traded parent company.
Energy UtilitiesOwned by CHS Inc.
American fuel, lubricant, and convenience store brand owned by CHS Inc., the nation's largest farmer-owned cooperative, operating roughly 1,400 locations across 19 states.
Cenex is privately owned, unlike newcleo which is under a publicly traded parent company.
Energy UtilitiesOwned by JSW Group
JSW Energy Limited is an Indian independent power producer and subsidiary of JSW Group, operating thermal, hydro, solar, and wind assets with over 10 GW of installed capacity and a target of 30 GW by 2030.
JSW Energy is privately owned, unlike newcleo which is under a publicly traded parent company.
Energy UtilitiesOwned by Constellation Energy Corporation
Clean energy brand of Constellation Energy Corporation, supplying electricity, natural gas, and renewable products to about 2.5 million customer accounts.
Constellation operates independently without a large parent corporation.
Energy UtilitiesOwned by Baker Hughes Company
Master brand of Baker Hughes Company, the global energy technology company providing oilfield services and industrial energy technology including LNG equipment and turbomachinery.
Baker Hughes operates independently without a large parent corporation.
Discover popular brands and companies in the Energy & Utilities category and related searches from other users.

Carbon capture subsidiary of Occidental Petroleum developing the STRATOS direct air capture facility and sequestration hubs in Texas.

76 is a classic American fuel brand owned by Phillips 66, famous for its orange ball logo, fronting branded gas stations primarily in the western United States.

Adani Green Energy Limited (AGEL) is India's largest renewable energy company by installed capacity, listed on the National Stock Exchange and BSE. It develops, builds, and operates solar and wind power plants across India.