Air Illinois ended in 1984.
Owens-Illinois was created in 1929.
Illinois Bell was created in 1920.
Illinois PGA was created in 1916.
Illinois Terminal was created in 1999.
Illinois Piasa was created in 2006.
Continental Illinois was created in 1910.
Illinois College was created in 1829.
Illinois Field was created in 1988.
Yes. Scott Air Force Base is in Illinois.
Illinois Institute of Technology was created in 1890.
Broadway Bank - Illinois - was created in 1979.