All Employees: Professional and Business Services: Professional, Scientific, and Technical Services in District of Columbia was 124.00000 Thous. of Persons in March of 2022, 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 124.70000 in November of 2021 and a record low of 70.70000 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: Professional, Scientific, and Technical Services in District of Columbia - last updated from the United States Federal Reserve on April of 2024.