Parsons Corporation is a prominent international planning, engineering, and construction firm, established in 1944 by Ralph M. Parsons. Headquartered in Centreville, Virginia, the company operates in 46 states across the U.S. and in 37 countries globally. Parsons focuses on delivering innovative solutions in defense, intelligence, and critical infrastructure. The company provides a diverse array of services, including program and construction management, engineering, urban planning, and cybersecurity solutions. Its offerings span various sectors, such as federal services, infrastructure, and defense. Parsons is organized into four main business units: Advanced Technologies, Commercial Technology, Infrastructure and Technology, and Transportation. The firm serves a wide range of clients, including government and private entities, across multiple markets.