Efsen Engineering

Wiss Janney Elstner Associates (WJE) is a renowned global firm that specializes in engineering, architecture, and materials science, dedicated to providing comprehensive solutions for the built environment. With an interdisciplinary team, WJE offers expert consultations, addressing a wide array of construction-related challenges while delivering lasting value to clients across diverse markets. Headquartered in Northbrook, Illinois, WJE boasts extensive laboratory and testing capabilities, supported by a commitment to sustainable practices in construction. The firm has successfully tackled over 175,000 projects, utilizing a hands-on approach and a wealth of expertise to innovate and resolve complex structural issues effectively. Generated from the website

R & R Structural Engineering specializes in structural engineering. In our decades of experience, we have learned that the complexity of our field favors specialization. While we respect those who elect to be "jack-of-all-trades", it is our tested opinion that specialization offers clients many bene