X-energy

Public

Rockville, MarylandEnergyhttps://x-energy.com/

Last Round

Series D

Nov 24, 2025

Total Funding Raised

$1.87B

Company Overview

X-energy is an advanced nuclear reactor and fuel technology company that develops Generation IV high-temperature gas-cooled nuclear reactors and proprietary TRISO-X fuel to provide clean, safe, and reliable energy.

Sector

Energy

AI Layer

Non-AI

Keywords

small modular reactorSMRTRISO-X fueladvanced nuclearhigh-temperature gas-cooled reactorHTGRnext-gen nuclearpebble-bed reactorbaseload powerprocess heatnuclear fuel fabricationmobile microreactorindustrial decarbonizationnuclear engineering servicesAdvanced Reactor Demonstration ProgramARDP

Historical Pricing

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X-energy 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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X-energy Funding Rounds

Historical fundraising activity

Round	Date	Amount Raised	Valuation	Investors	Sources
Series D	Nov 24, 2025
Series C Extension	Feb 6, 2025
Series C	Dec 5, 2023
Grant	Aug 23, 2022
Series B	Oct 1, 2021
Grant	Oct 14, 2020

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Key People

Founding team and executive leadership

Amanda Ince

CEO

Executive Team

Claudia Fernandez

Chief Executive Officer

Executive Team

Dominique Hearon

Chief Executive Officer

Executive Team

Gianna CindySlocum

Co-Chief Executive Officer

Executive Team

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X-energy Investors

Notable investors and investment history

Investor	Rounds
Jane Street	Series C Extension, Series D
Corner Capital	Series D
University of Michigan	Series C Extension
Reaves Asset Management	Series D
Corner Capital Management	Series D
NGP Energy Capital	Series C Extension, Series D
Galvanize Climate Solutions	Series D

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X-energy Filings

SEC and related filings with document metadata.

Typed	Date	Amount Offered	Amount Sold	Filling	Pages	Download
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X-energy Filings

SEC and related filings with document metadata.

Firmographic Details

HeadquartersRockville, Maryland

Employee Range1,858

Year Founded2009

Last FundingNov 24, 2025

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