All Employees: Professional and Business Services: Employment Services in Illinois was 180.01094 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Employment Services in Illinois reached a record high of 242.07833 in March of 2022 and a record low of 72.20899 in October of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Employment Services in Illinois - last updated from the United States Federal Reserve on April of 2024.