Newcleo

Private

ParisEnergy & Sustainabilityhttps://newcleo.com

Last Round

Series A

Feb 4, 2026

Total Funding Raised

$354M

Company Overview

Newcleo is a nuclear energy company that develops Generation IV small modular lead-cooled fast reactors (LFRs) fueled by reprocessed nuclear waste.

Sector

Energy & Sustainability

Verticals

Renewable Energy, Circular Economy, Alternative Fuels, Waste Management, Maritime & Shipping

Business Model

B2G

Customer Profile

Government Contracts, Hardware Sales, Services & Consulting

AI Layer

Non-AI

Keywords

small modular reactorsSMRslead-cooled fast reactorsLFRsadvanced nuclearMOX fuelmixed oxide fuelnuclear waste reprocessingnuclear recyclingnuclear fuel cyclemodular nuclear reactorspassive safetyGeneration IV reactorsnuclear EPCmaritime nuclear reactorsenergy transition

Historical Pricing

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Caplight Momentum Score

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Newcleo Comps

Public and private peers based on sector, stage, and business model.

Company	Status	Est. Valuation	Rev Multiple
OpenAI	Private	$86.0B	~40x
Cohere	Private	$5.0B	--
Competitor 1	Public	$XX.XB	XXx
Competitor 2	Public	$XX.XB	XXx

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Newcleo Funding Rounds

Historical fundraising activity

Round	Date	Amount Raised	Valuation	Investors	Sources
Series A	Feb 4, 2026
Series A	Sep 30, 2024
VC Round	Jun 20, 2022
Seed	Aug 31, 2021

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Key People

Founding team and executive leadership

Elisabeth Rizzotti

Founder Chief Operating Officer Managing Director Italy

Founding Team

Stefano Buono

Founder And Chief Executive Officer

Founding Team

Stéphane Calpena

Global Licensing Director Executive Committee Member Under The CEO

Executive Team

Cristiana Vieno

Deputy MD Italy And CFO, Head Of Finance

Executive Team

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Newcleo Investors

Notable investors and investment history

Investor	Rounds
Inarcassa	Series A
UK government	VC Round
Eni	VC Round
Azimut	Seed
Indaco Venture Partners SGR	Series A
Alchimia Investments	VC Round
Club degli Investitori	Seed, VC Round

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Market signals

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Apr 8, 2026
Reached over 100 strategic partnerships and collaborations.
Dec 18, 2025
Direct investment in a MOX plant for reactor fuel production.

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Newcleo Filings

SEC and related filings with document metadata.

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Newcleo Filings

SEC and related filings with document metadata.

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Firmographic Details

HeadquartersParis

Employee Range616

Year Founded2021

Last FundingFeb 4, 2026

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