ECS Group of Companies
Civil EngineeringVirginia, United States1001-5000 Employees
ECS Group of Companies is a civil engineering consulting firm based in Chantilly, Virginia. Founded in 1988 and employee-owned, the organization operates through a network of regional subsidiaries and more than a hundred offices across the United States. Its professional staff provide services in geotechnical engineering, environmental consulting, construction materials testing and inspection, and facilities engineering and consulting. The firm serves both public and private sector clients, addressing project needs through these core disciplines. Its geographic footprint includes offices in Chantilly, Chicago, Raleigh, Orlando, Dallas, and Walnut Creek, among others. In May 2026, ECS expanded its offices to Augusta, Georgia, indicating ongoing geographic growth.