Private company

X-Energy

Logo: Unknown author Unknown author, CC BY-SA 1.0, via Wikimedia Commons3

American nuclear energy company

X-Energy, Inc. is a publicly traded American nuclear reactor and fuel engineering company, headquartered in Rockville, Maryland.2 It was founded by Kam Ghaffarian.1 Its chief executive is Clay Sell.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

X-Energy, Inc. is a publicly traded American nuclear reactor and fuel engineering company, headquartered in Rockville, Maryland.2

The story

Founded by Kam Ghaffarian.1

Leadership

Who has led X-Energy, and when. Pick a name to see everywhere that person has worked.

Sources

The numbers on this page point here. Each one links to the record it came from.

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