Horner & Shifrin, Inc. is a multidisciplinary professional services firm. With a staff of more than 100 engineers, technicians, and support personnel, our firm has the experience and capability to serve a wide variety of clients throughout the United States.

Founded in 1933 by W.W. Horner and H. Shifrin in St. Louis, the company has grown to be a multidisciplinary engineering firm with unusual versatility. We have expanded our services to meet our clients’ continuously changing needs and to keep ahead of technological developments in the field of engineering.

We offer engineering services in all phases of a project, including design, feasibility, planning, development, GIS mapping services and construction administration. The firm has the in-house capability to execute projects of major scope. We are structured to ensure that our principals and senior personnel are directly involved with all projects, whether they are large or small. Many of our projects have demonstrated innovative techniques and designs, for which we have received numerous professional awards and repeat assignments from appreciative clients.