ES3, also known as Engineering and Software System Solutions, provides high-end application software and scientific method development solutions for commercial industries and government agencies. Its aerospace division provides critical aerospace support services, including landing gear systems research, testing and evaluation, design and analysis, repair and maintenance, to the U.S. Air Force. ES3 offers a range of software services, such as Internet applications development, searchable document repository, system administration and technical support. Its clients include the Science Applications International Corporation, General Atomics, Karagozian and Case Structural Engineers, Defense Threat Reduction Agency, Los Alamos National Laboratory and Ogden Air Logistics Center. ES3 has offices in San Diego and Clearfield, Utah.