Horner & Shifrin, Inc.

Company

Company

Leadership & Key Personnel

Corporate Headquarters, St. Louis, MO

  • Duane L. Siegfried, P.E., S.E.
    President
  • William P. Clarke, P.E.
    Chairman of the Board, Chief Executive Officer
  • A. Mansour Mansouri, P.E.
    Vice President - Design Operations
  • Linda R. Hopkins, C.D.A
    Vice President - Business Operations
  • Gino E. B. Bernardez, Jr., P.E.
    Associate Vice President, Manager, Transportation/Civil Engineering
  • Brian D. Heideman, P.E.
    Associate Vice President, Manager, Commercial and Institutional Engineering
  • Kregg M. Kraus, P.E.
    Associate Vice President, Manager, Building Design Services
  • James E. McCleish, P.E.
    Associate Vice President, Manager, Environmental Engineering
  • Michael A. Banashek, P.E., S.E.
    Manager, Structural Engineering
  • Glen T. Cherry
    Director, Business Development

  • O'Fallon, IL

    Brooks K. Brestal, P.E.
    Senior Engineering Manager

  • Springfield, MO

    Kevin C. Skibiski, P.E., S.E., P.L.S.
    Associate Vice President, Office Manager

Horner & Shifrin, Inc.,

is a multidisciplinary engineering firm with offices in St. Louis and Springfield, Missouri, and O’Fallon, Illinois.

As a 100-percent employee-owned corporation with a staff of over 70 engineers, technicians and support personnel, our firm has the experience and capability to serve a wide variety of clients in Missouri, Illinois and throughout the Midwest, including city, county, state and federal government agencies, industries, utilities and commercial enterprises. 

Founded in 1933 by W.W. Horner and H.G. Shifrin, we offer engineering services in all phases of a project, including feasibility, planning, development, design and construction administration for the design of wastewater or water treatment plants and/or collection or distribution systems, flood protection, storm drainage, pump stations, roads, highways, bridges, grade separations for railroads, airports, port facilities, health care facilities, and industrial and business park developments.  In addition, we provide mechanical and electrical engineering services, including plumbing; fire protection; heating, ventilation and air conditioning; energy audits and energy conservation; electrical distribution and backup power supply; lighting and alarm systems.

It is a matter of record that many of our projects have demonstrated innovative techniques and designs, for which we have received numerous professional awards and repeat assignments from appreciative clients.