Verified Nov 2026
Thermal & Fluid Systems
·
Rockville, Maryland
·
Since 2009
X-energy is an advanced nuclear reactor and fuel company headquartered in Rockville, Maryland, United States, founded in 2009. It employs between 500 and 1,000 people and is publicly listed on NASDAQ under the ticker XE. The company develops High-Temperature Gas-Cooled and small modular reactor designs and serves the energy, industrial, and defense sectors. In August 2026, its TRISO-X fuel unit announced a 70-acre expansion of its OakRidge Nuclear Fuel Campus in Tennessee.
X-energy at a glance
Revenue
148.8M
Employees
500-1,000
Founded
2009
Headquarters
Rockville, Maryland
Ownership
Publicly traded (NASDAQ: XE)
Certifications
ISO 9001
Industries
Automotive
Electric Vehicles
Military & Defense
Renewable Energy
Industrial Equipment
STABILITY SIGNALS
Established & strong
17 years in operation (founded 2009).
Publicly listed; no distress event on record.
Holds ISO 9001 certification(s) per public sources.
Overview
X-energy is an advanced nuclear reactor and fuel company headquartered in Rockville, Maryland, United States, founded in 2009. It employs between 500 and 1,000 people and is publicly listed on NASDAQ under the ticker XE. The company develops High-Temperature Gas-Cooled and small modular reactor designs and serves the energy, industrial, and defense sectors. In August 2026, its TRISO-X fuel unit announced a 70-acre expansion of its OakRidge Nuclear Fuel Campus in Tennessee.
At a glance
Attribute | Detail |
|---|---|
Founded | 2009 |
Headquarters | Rockville, Maryland |
Employees | 500-1,000 |
Revenue | 148.8M |
Ownership | Publicly traded (NASDAQ: XE) |
Primary capability | Thermal & Fluid Systems |
Certifications | ISO 9001 |
What X-energy makes
The company develops the Xe-100 reactor, a pebble-bed design for electricity and industrial heat, and produces TRISO-X fuel, and it holds ISO 9001 certification.
Products and capabilities described on the company's own site include LED, Transmission (source: x-energy.com).
Certifications
X-energy is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — x-energy.com
Latest developments
2026-08-13 — X-energy Reports Second Quarter 2026 Results — Thu, 08/13/2026 - 06:00 (x-energy.com)
2026-08-04 — TRISO-X Announces 70-Acre Expansion of OakRidge Nuclear Fuel Campus - X-energy (x-energy.com)
2026-07-15 — TRISO-X Awarded Tennessee Grant to Support Expansion of Nuclear Fuel Campus - X-energy (x-energy.com)
2025-11-24 — X-energy Closes Oversubscribed $700 Million Series D Financing Round to Continue Expansion to Meet Global Energy Demand - X-energy (x-energy.com)
2025-09-14 — Centrica and X-energy Sign Joint Development Agreement to Deploy U.K.’s First Advanced Modular Reactors and Pursue 6 Gigawatts of New Nuclear Capacity in the U.K. - X-energy (x-energy.com)
Facilities
X-energy is headquartered in Rockville, Maryland. Public sources also reference these locations:
Texas — x-energy.com
Company details
X-energy closed a Series D financing round of $700 million in November 2025 and signed a joint development agreement with Centrica in September 2025 to deploy advanced modular reactors in the U.K. X-energy was founded in 2009, has an estimated 500-1,000 employees, and is headquartered in Rockville, Maryland. On the LightSource stability read it is rated "Established & strong": 17 years in operation (founded 2009). Publicly listed; no distress event on record. Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does X-energy make?
X-energy is an advanced nuclear reactor and fuel company headquartered in Rockville, Maryland, United States, founded in 2009. It employs between 500 and 1,000 people and is publicly listed on NASDAQ under the ticker XE. The company develops High-Temperature Gas-Cooled and small modular reactor designs and serves the energy, industrial, and defense sectors. In August 2026, its TRISO-X fuel unit announced a 70-acre expansion of its OakRidge Nuclear Fuel Campus in Tennessee.
Where is X-energy headquartered?
X-energy is headquartered in Rockville, Maryland (801 Thompson Ave, Rockville, Maryland, 20852).
When was X-energy founded?
X-energy was founded in 2009.
How big is X-energy?
X-energy has an estimated 500-1,000 employees, with revenue in the 148.8M range.
Is X-energy publicly traded?
Publicly traded (NASDAQ: XE). Public financial figures are drawn from its filings.
What certifications does X-energy hold?
X-energy lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
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Last verified Nov 2026. Is this your company? Request a correction.
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