All Employees: Professional and Business Services: Architectural, Engineering, and Related Services in Washington was 38.94119 Thous. of Persons in May of 2022, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Architectural, Engineering, and Related Services in Washington reached a record high of 39.15120 in July of 2008 and a record low of 20.39024 in January of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Architectural, Engineering, and Related Services in Washington - last updated from the United States Federal Reserve on April of 2024.