Graycor

Graycor is a construction company in Oakbrook Terrace, Illinois. The company specializes in general contracting, design-build, self-perform construction, preconstruction, integrated project delivery, and MEP coordination. It serves clients across multiple markets, including manufacturing, logistics and distribution, power and gas, retail and shopping, corporate, healthcare, and cultural and educational facilities. With a history spanning over a century, Graycor has completed projects in locations such as Oak Brook, Illinois; Chandler, Arizona; Charlotte, North Carolina; and Elkhart, Indiana. The company is recognized for its work on facilities like the RH Oak Brook and the Gallery at Oakbrook Center, and has been acknowledged as a top supplier by Owens Corning and a top-performing construction company by the Associated Builders and Contractors.

Graycor traces its origins to 1921 when Edward Gray founded the Chicago Concrete Breaking Company, initially specializing in sandblasting and pavement breaking. The company gained national recognition in 1926 for removing a retaining wall along the Illinois Central Railroad tracks in Chicago’s Grant Park using dynamite, completing the project without disrupting train traffic. This success led to the company’s motto: “Wanted: A hard job.” Over the decades, Graycor expanded its expertise into precision blasting, slag removal, and hazardous facility work, evolving into a leader in complex construction. The company emphasizes long-term partnerships, continuous improvement, and a culture of safety and excellence, rooted in values that prioritize sustainable success and trust.

Graycor is headquartered at 2 Mid America Plaza, Suite 400, in Oakbrook Terrace, Illinois. The building is located within the Mid America Plaza complex, a commercial hub situated near major transportation corridors and regional business centers. The company operates with a national reach while maintaining deep roots in the Chicago metropolitan area.