The current space of this historical Chicago architectural firm is in one of the buildings they designed: the Marquette building. Take some tours around the loop and you will find many of the buildings were designed by them in early Chicago history. The do large amount of their current work in the region but are expanding more internationally as well. For the Chicago Open House we had a very nice and interesting employee show us around their impressive office which has large windows overlooking north and south Dearborn street. More at: to see a list of the great number of historic buildings they have designed since 1880! Great history.