All Employees: Professional and Business Services: Employment Services in Illinois was 232.10000 Thous. of Persons in March of 2022, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Employment Services in Illinois reached a record high of 236.40000 in December of 2021 and a record low of 66.80000 in January of 1991. 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 March of 2024.