Illinois Speed Press was created in 1968.
University of Illinois Press was created in 1918.
Southern Illinois University Press was created in 1956.
Ten Speed Press was created in 1970.
Air Illinois ended in 1984.
Continental Illinois ended in 1994.
West End Press was created in 1975.
South End Press was created in 1977.
Illinois River Railroad ended in 1864.
Illinois Parallel Railroad ended in 1853.
Illinois Central Railroad ended in 1972.
Illinois National Bank ended in 1985.