About Us

SDI is a structural engineering consulting firm dedicated to delivering thoughtful, efficient, and lasting design solutions. Since 1991, we have partnered with architects, institutions, and corporate clients to bring complex projects to life through responsive service, technical expertise, and collaborative design.

Our team combines decades of structural engineering experience with advanced BIM capabilities to streamline coordination, improve project efficiency, and support successful outcomes from concept through construction. With licensed engineers across multiple states and more than 5,000 completed projects, SDI has built a reputation as a trusted partner committed to quality, reliability, and long-term client relationships.

States where we hold License: Michigan, Indiana, Ohio, California, West Virginia, Florida, Massachusetts, Virginia, Nevada, Texas, Oklahoma, North Carolina, South Carolina, and Illinois. Additional states available as needed