X-Energy, Inc.

X-Energy, Inc. is an advanced nuclear reactor and fuel engineering company headquartered in Rockville, Maryland. Founded in 2009, its mission is to address global energy challenges by providing resilient, scalable, clean, safe, and reliable power, particularly for energy-intensive sectors and the growing demands of the AI revolution. The company aims to bridge the gap between complex science and commercial execution in the nuclear energy sector.

The company's key products include the Xe-100, a pebble-bed high-temperature gas-cooled small modular reactor (SMR) designed to generate up to 80 megawatts of electric power or 200 megawatts of thermal output, and TRISO-X, a proprietary TRISO fuel developed to power these reactors. X-Energy's technology is designed for clean energy generation, industrial process heat, and powering critical infrastructure such as data centers. They also explore microreactor applications for defense and remote operations with their XENITH design.

X-Energy, Inc. became a publicly traded company on April 24, 2026, listing on the Nasdaq Global Select Market under the ticker symbol "XE" following an initial public offering that raised over $1 billion. This IPO was noted as the largest in the nuclear sector's history. Led by CEO Clay Sell, the company is actively engaged in partnerships with major entities like Amazon, Dow, and Centrica for the deployment of its Xe-100 reactors. Additionally, X-Energy is advancing the construction of its commercial-scale TRISO-X fuel fabrication facility (TX-1), which received its Part 70 special nuclear material handling license in February 2026.