Y-12 National Security Complex

Part of Department Of Energy

The Department of Energy’s contractor entity, identified by code 899013, supports critical national security and nuclear infrastructure operations through specialized construction, industrial equipment, and technical services. Its core mission centers on maintaining, modernizing, and securing facilities at DOE’s national security complexes—particularly Y-12 and Pantex—by enabling safe handling of nuclear materials, managing hazardous waste, and ensuring operational resilience.

Y-12 National Security Complex is a government agency with procurement activity across contracts, awards, and contractors.