Sandia National Laboratories: Exceptional Service in the National Interest. Sandia is a multiprogram engineering and science laboratory operated by National Technology and Engineering Solutions of Sandia, LLC. for the US Department of Energy''s National Nuclear Security Administration. Sandia''s enduring mission is to provide engineering and science support for America''s nuclear weapons stockpile. Sandia applies cutting-edge technologies in integrated microsystems, computer modeling and simulation, robotics and intelligent machines, sensors, microelectronics and photonics, nanotechnology, renewable energies, combustion research, biotechnology, computation and information sciences, electronics, materials and process sciences, pulsed power sciences, and environmental sciences.