Cincinnati Railway Tunnel Company was created in 1872.
Detroit River Tunnel Company was created in 1905.
Chicago Opera Company was created in 1940.
Chicago Recording Company was created in 1975.
Chicago Trolley Company was created in 1993.
Chicago Motor Coach Company was created in 1917.
Chicago City Opera Company was created in 1935.
Chicago Varnish Company Building was created in 1895.
Lithuanian Opera Company of Chicago was created in 1956.
Chicago Grand Opera Company was created in 1910.
Chicago Union Station Company was created in 1913.
Am Tunnel was created in 1993.