Parsons Corporation provides integrated solutions and services in the defense, intelligence, and critical infrastructure markets in North America, the Middle East, and internationally.

It operates through two segments, Federal Solutions and Critical Infrastructure. The company offers cybersecurity; missile defense technical solutions; C5ISR; space launch and ground systems; space and weapon system resiliency; geospatial intelligence; signals intelligence; nuclear and chemical waste remediation; border security and critical infrastructure protection; counter unmanned air systems; and biometrics and biosurveillance solutions to U.S. Department of Defense, including military services; Missile Defense Agency, the Department of Energy; the Department of State; the Department of Homeland Security, and the Federal Aviation Administration.

Further, it provides integrated traffic solutions for arterials, smart intersections, airport landside, ports, and tolling integrators; systems optimization, communications-based train control, rail system design and system assurance services; engineering, program management, and environmental solutions to private sector industrial clients and public utilities; digital transformation, advisory services, AI/ML, and digital twin and cyber services; planning, engineering, and management services for infrastructure, including bridges and tunnels, roads and highways, water and wastewater, and dams and reservoirs.

Parsons Corporation was founded in 1944 and is headquartered in Centreville, Virginia.