Service and Distribution OEC Business Interiors, Inc. has the ability to deliver and install orders throughout the nation or around the world utilizing our dealer network. Our experienced network coordinators will manage every detail to assure proper delivery and installation of your products. Our primary geographical coverage area includes Cook, DuPage, Kane, Lake, McHenry, and Will counties in Illinois, however, we also have the ability to cover a multi-state area by working through our dealer network. Through this network, clients can purchase furniture in one location and have it delivered and installed nationally or internationally. This program allows our clients to maintain central purchasing control and satisfy the needs of their entire organization, while enjoying the convenience of dealing with a single-source supplier that can assure a consistent level of service and quality.