Architecturally Designed with Architects In Mind® Our superior shade systems effectively manage solar light and heat transmissions providing our clients with improved levels of comfort, energy efficiency and privacy. Our commercial customers include corporate entities, cultural and event centers, educational institutions, houses of worship and restaurants as well as government, healthcare, hospitality, industrial and retail facilities. As a top US producer of interior window treatments, Illinois Window Shade Company has successfully built relationships with architects, designers, builders and decorators. We provide our customers with solutions that achieve a balance between function and aesthetics.