Alion Science and Technology Corporation, together with its subsidiaries, provides scientific, engineering, and information technology solutions for the defense, homeland security, and energy and environmental analysis sectors primarily in the United States. The companyâ€™s naval architecture and marine engineering business offers technical services for ship and systems design from the initial phase of mission analysis and feasibility trade-off studies through contract and detail design, production supervision, testing, and logistics support for the commercial and naval markets. Its defense operations business provides military transformation analyses, logistics management readiness assessments and operational support training, and critical infrastructure risk and vulnerability analyses. The companyâ€™s modeling and simulation business assists customers in examining event outcomes. Its technology integration business provides system integration and design services, including facility engineering services. Alionâ€™s information technology and wireless communications business develops system concepts and perform trade off studies to identify and implement the design. Its energy and environmental sciences business offers energy production and environmental protection. The company was founded in 2001 and is based in McLean, Virginia.