The Butler Street Foundry & Iron Co. was established in 1891 on the near south side  of Chicago. The Foundry’s main job was to provide iron castings to help rebuild Chicago after the Great Fire. As the end of the nineteenth century approached, Butler St. was instrumental in making the steel used to build the Union Stock Yards.

Many of the buildings that define Chicago were erected with steel from this historic foundry.  The Foundry took its name from General Benjamin Franklin Butler of the Union Army, who legend has it was influential in establishing the business.  In fact Normal Avenue, the foundry's current street, was originally named Butler St.

Butler Street Foundry aided in the war efforts of World War I. Through the hard times of the 1930’s, the foundry contributed in the construction of Chicago’s "A Century of Progress " Exposition. When the nation entered the Second World War, Butler Street Foundry & Iron Co. again supplied the U.S. and its allies with steel.

Butler Street Foundry & Iron Co. was a family-run business for over 100 years. In 2005 the family transferred ownership to fellow metalworker John LaMonica, confident that John would continue to provide the quality work that has made the Butler Street Foundry & Iron Co. a fabrication icon for the past 115 years.