All Employees: Professional and Business Services: Professional, Scientific, and Technical Services in District of Columbia was 122.20000 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Professional, Scientific, and Technical Services in District of Columbia reached a record high of 126.40000 in September of 2023 and a record low of 71.60000 in December of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Professional, Scientific, and Technical Services in District of Columbia - last updated from the United States Federal Reserve on April of 2024.