All Employees: Professional and Business Services: Investigation and Security Services in Connecticut was 8.48913 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Investigation and Security Services in Connecticut reached a record high of 9.61637 in January of 1999 and a record low of 7.53941 in December of 1991. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Investigation and Security Services in Connecticut - last updated from the United States Federal Reserve on April of 2024.