X-energy 
An advanced nuclear reactor and small modular reactor (SMR) developer
Analytics date: 02.06.2026
Basic information
Head office
530 Gaither Road, Suite 700, Rockville, MD 20850Head officeGeography of business
United States of America- United Kingdom
- Canada
Geography of businessDate of the last round
Last round 11/2025Date of the last roundTotal funds raised
$1.7B+Total funds raised
Analytics date: 02.06.2026
About X-energy
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Basic Information
Logo |  |
Legal name | X Energy Reactor Company, LLC |
Industry | Energy Sources |
Specialization | Nuclear energy |
Nature of ownership | Private |
Funds raised | $1.7B+ |
Key shareholders | Kam Ghaffarian (Founder) Amazon Climate Pledge Fund Ares Management Jane Street NGP (Natural Gas Partners) |
Founded | 2009 |
Primary office | 530 Gaither Road, Suite 700, Rockville, MD 20850 |
Geographical presence | United States of America, United Kingdom, Canada |
Employees | 916 |
Founder | Kam Ghaffarian |
Key persons | Kam Ghaffarian Founder & Executive Chairman J. Clay Sell CEO Daniel Gross — CFO |
Awards | Selected for the U.S. Department of Energy Advanced Reactor Demonstration Program (ARDP), Recipient of U.S. Department of Energy funding for advanced nuclear reactor development, Recipient of U.S. Advanced Energy Project tax credit program (TRISO-X fuel facility) |
Licenses | U.S. Nuclear Regulatory Commission (NRC) fuel fabrication license NRC construction permit application for Xe-100 advanced reactor |