All Employees: Professional and Business Services: Architectural, Engineering, and Related Services in Washington was 42.00000 Thous. of Persons in March of 2024, 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 42.00000 in March of 2024 and a record low of 19.80000 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 May of 2024.