All Employees: Professional and Business Services: Management of Companies and Enterprises in Illinois was 81.80000 Thous. of Persons in March of 2022, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Management of Companies and Enterprises in Illinois reached a record high of 96.70000 in August of 2013 and a record low of 67.00000 in April of 1997. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Management of Companies and Enterprises in Illinois - last updated from the United States Federal Reserve on April of 2024.