X‑energy Reactor Company, LLC (X‑energy) is a U.S.-based private developer of advanced small modular nuclear reactors and proprietary TRISO-based fuel. The company develops the Xe‑100 high‑temperature, helium‑cooled pebble‑bed SMR and related fuel and supply‑chain technologies with the stated mission of commercializing safe, scalable, low‑carbon nuclear power for utilities, industry, and large commercial customers.
Advocates for federal and state policies that accelerate advanced reactor commercialization: government R&D and demonstration funding (e.g., DOE programs), streamlined regulatory and NRC licensing reforms for advanced reactors, HALEU fuel‑supply and fuel‑manufacturing incentives, public‑private procurement and offtake policies, tax incentives for clean/dispatchable generation, and workforce development for nuclear supply chains.
Primarily funded by private investors and strategic corporate partners (venture and growth capital, anchor customer investments), supplemented by government grants and contracts (U.S. Department of Energy and other federal/state programs) and commercial project agreements with industrial clients.
Founder and Executive Chairman Kam Ghaffarian; CEO Clay Sell; strategic investors and partners including Amazon (Climate Pledge/related investments), Ares Management, Ontario Power Generation, Dow Inc., Curtiss‑Wright Corporation, and other industry and financial backers.
Private company (limited liability company)
