Chicago, Oct. 07, 2026 (GLOBE NEWSWIRE) -- Landmarks Illinois is pleased to announce it has acquired Illinois Main Street (IMS), a robust community development network focused on commercial corridors, downtown districts and small business economic development, from its partners at Main Street America. The mutually agreed-upon acquisition brings together two statewide organizations with decades of experience helping Illinois communities preserve historic places, strengthen local economies and build thriving downtowns.