About Us

Since being founded in 1944, DeLong’s has been a staple in the steel industry. The family owned and operated company is a turnkey structural steel fabricator headquartered in Jefferson City, Missouri. At DeLong’s, we fabricate and deliver structural steel for railroad, highway, and pedestrian bridges, and structural steel for buildings. Also, we provide miscellaneous items for steel fabrication projects of all types, including handrail and ornamental fencing. Our team responds quickly to emergency repair needs. In addition, our detailers complete all shop drawings in-house and our engineering staff provides design assistance. We take great pride in building America’s infrastructure.


Our mission is to provide high-quality fabricated structural steel delivered on time at reasonable prices and to treat our co-workers, suppliers, and customers as our friends.

Core Values




Pride in Our People. Pride in Our Products.