X-energy Advanced Nuclear Technology

X-energy is a pioneering American nuclear reactor and fuel design engineering company headquartered in Rockville, Maryland. Founded in 2009 by entrepreneur Kam Ghaffarian, the company is at the forefront of the next generation of nuclear energy, specifically focusing on Small Modular Reactors (SMRs) and high-temperature gas-cooled reactor technology. Their primary products include the Xe-100 reactor and TRISO-X fuel, which are designed for high safety and efficiency using passive cooling systems.

As of 2026, X-energy remains a private company backed by significant institutional investment and partnerships with industrial giants like Dow. The company's manufacturing efforts are primarily centered in the United States, notably with the development of the TRISO-X Fuel Fabrication Facility in Oak Ridge, Tennessee. This facility represents a major step in domestic fuel production capacities for advanced nuclear reactors, emphasizing the brand's commitment to American energy independence and technological leadership.