Category:Establishments in Illinois by year

• Establishments in Illinois by century (4 C)
• Establishments in Illinois by decade (24 C)
• Establishments in the Northwest Territory by year (6 C)

0–9

• 1819 establishments in Illinois (4 P)
• 1821 establishments in Illinois (7 P)
• 1823 establishments in Illinois (4 P)
• 1824 establishments in Illinois (3 P)
• 1825 establishments in Illinois (10 P)
• 1827 establishments in Illinois (4 P)
• 1830 establishments in Illinois (3 P)
• 1831 establishments in Illinois (5 P)
• 1833 establishments in Illinois (4 P)
• 1836 establishments in Illinois (7 P)
• 1837 establishments in Illinois (8 P)
• 1839 establishments in Illinois (15 P)
• 1841 establishments in Illinois (7 P)
• 1843 establishments in Illinois (6 P)
• 1855 establishments in Illinois (3 P)
• 1860 establishments in Illinois (3 P)
• 1867 establishments in Illinois (3 P)
• 1888 establishments in Illinois (3 P)
• 1898 establishments in Illinois (3 P)
• 1924 establishments in Illinois (3 P)
• 1925 establishments in Illinois (3 P)
• 1927 establishments in Illinois (5 P)
• 1928 establishments in Illinois (3 P)
• 1929 establishments in Illinois (7 P)
• 1940 establishments in Illinois (4 P)
• 1969 establishments in Illinois (7 P)
• 1972 establishments in Illinois (3 P)
• 1973 establishments in Illinois (5 P)
• 1983 establishments in Illinois (3 P)
• 1987 establishments in Illinois (3 P)
• 1989 establishments in Illinois (4 P)
• 1990 establishments in Illinois (5 P)
• 1991 establishments in Illinois (4 P)
• 1992 establishments in Illinois (3 P)
• 1993 establishments in Illinois (3 P)
• 1994 establishments in Illinois (4 P)
• 1995 establishments in Illinois (5 P)
• 2003 establishments in Illinois (3 P)
• 2005 establishments in Illinois (7 P)
• 2006 establishments in Illinois (3 P)
• 2007 establishments in Illinois (5 P)
• 2009 establishments in Illinois (5 P)
• 2010 establishments in Illinois (4 P)