SMITH Engineering is a full-service land development civil engineering firm based in Chantilly, Virginia. SMITH has been serving private sector clients in the Washington, D.C., metropolitan area since 2008. The firm concentrates heavily in the Virginia counties of Loudoun, Prince William, Fairfax, and Stafford, as well as numerous other Northern Virginia municipalities. Our projects include residential, commercial, industrial, institutional, recreational and mixed-use development.