HORNER & SHIFRIN, INC.
ST. LOUIS, MO

Who We Are We are a multidisciplinary professional services firm with offices in St. Louis, O'Fallon, and Poplar Bluff, Missouri, and Chicago and O’Fallon, Illinois. Horner & Shifrin is a multidisciplinary professional services firm based in St. Louis, with offices in O’Fallon and Poplar Bluff, Missouri, and Chicago and O’Fallon, Illinois. We offer engineering services in all phases of a project, including design, feasibility, planning, development, and construction administration. In addition to engineering, our in-house capabilities include materials testing, land surveying, GIS mapping and hosting. The firm was founded in October 1933 by Wesley Horner and Hymen Shifrin, both of whom had been previously employed by the City of St. Louis. In the years prior to the firm’s founding, Horner had made a name for himself nationally with his innovative proposition to bury the River des Peres in an effort to prevent further destruction caused by stormwater overflow and runoff.