Parsons Corp. provides engineering, design, planning, and construction management services. It offers solutions for commercial, federal, transportation, and water resources. Read More The firm delivers engineering, construction, systems and resource integration, project and program management, and environmental services to customers. Its business segments include Federal Solutions and Critical Infrastructure. The Federal Solutions segment provides advanced technologies, including cybersecurity, missile defense systems, C5ISR, space launch and situational awareness, geospatial intelligence, RF signals intelligence, nuclear and chemical waste remediation, and engineering services. The Critical Infrastructure segment provides integrated design and engineering services for complex physical and digital infrastructure around the globe. The company was founded by Ralph Monroe Parsons on June 12, 1944 and is headquartered in Centreville, VA. The listed name for PSN is Parsons Corporation.