Welcome to the Indiana Limestone Institute of America
The ILI remains a trusted resource for architects, contractors, building owners and others seeking accurate, unbiased information about the use of Indiana Limestone in construction.
Trademarked as The Nation’s Building Stone™, Indiana limestone is found on projects across North America and around the world. The Quarrymen’s Association, founded in 1928, was restructured in 1963 as the Indiana Limestone Institute of America, Inc. to expand membership beyond quarry operators to include fabricators, cladding designers, restoration companies, equipment suppliers, and other industry contributors. Today, members supporting our efforts are located throughout the U.S. and Canada.
Learn more about the ILI and its history, educational initiatives, and industry-leading publications on this website, or to find out more about becoming a member of the ILI, contact us today.