SDI’s corporate headquarters is located in the heart of downtown, Chicago overlooking Millennium and Grant Parks on the eastern edge of the Loop.

Whether you have a business need or a general question, use the form below to contact us, and a representative from SDI will be in touch shortly.

SDI – Chicago (Corporate Headquarters)
200 East Randolph, Suite 3550
Chicago, IL 60601
312.580.7500 phone
312.580.7600 fax