The Leading Metals Fabricator in Chicagoland

Founded in Chicago by Ralph Simpson in 1842 as an iron and glass contractor—when the city was less than 10 years old—The Ralph H. Simpson Company was built upon the same cornerstone of quality that remains our core focus today. The multigenerational company has been family-run throughout its history, and our people stay with us—a testament to the work environment we create and our philosophy of excellence not only in what we do, but in how we do it. Today, as one of the foremost full-service metalworkers of iron, structural steel, stainless steel and other architectural metals in the Chicago area, we stand ready to put our best to work for you. And we won't stop working until the job is done right.