Los Alamos National Security, LLC (LANS LLC) is a private limited liability company (LLC) formed by the University of California, Bechtel, Babcock & Wilcox Technical Services, and URS Energy and Construction (which was purchased by AECOM in 2014). It currently operates Los Alamos National Laboratory (LANL) for the Department of Energy and the National Nuclear Security Administration. It took over direct management and operation of the Los Alamos National Laboratory from the University of California on June 1, 2006. - Source: Wikipedia