Graycor

Graycor is a Construction Company in Oakbrook Terrace, IL. The firm provides general contracting, design-build, self-perform, preconstruction, integrated project delivery, MEP coordination, and construction technology services. It serves the manufacturing, advanced facilities, entertainment and dining, logistics and distribution, power and gas, retail and shopping, corporate, cultural and educational, living and lodging, and healthcare sectors. Graycor has a rating of 3.70 based on 0 reviews.

Founded in 1921 by Edward Gray, the business began as the Chicago Concrete Breaking Company, specializing in sandblasting and pavement breaking. The company gained national recognition in 1926 for removing a retaining wall in Chicago's Grant Park using dynamite without interrupting train traffic, establishing its motto: "Wanted: A hard job." In 1933, it pioneered the use of dynamite to remove iron ore deposits from blast furnaces, launching a precision blasting business that expanded to hazardous steel-producing facilities. Today, Graycor leverages national resources to manage complex projects across the country, operating with a culture of continuous improvement and long-term perspective.

The company’s leadership includes Chief Executive Officer Dave Wing, promoted in 2025. Graycor has been named a top-performing construction company by the Associated Builders and Contractors and recognized as a top 2025 supplier by Owens Corning. Notable projects include a mass timber delivery station for Amazon in Elkhart, Indiana, the Wieland Modernization & Expansion Project, the RH Oak Brook gallery, and the Stanford Shopping Center Redevelopment. The firm emphasizes safety, diligence, and earning client trust through predictable outcomes on difficult assignments.

Graycor’s century of experience in complex construction, from early dynamite work to modern mass timber delivery, defines its approach in Oakbrook Terrace, IL.

Located at 2 Mid America Plaza #400.

BizScoreAI awards Graycor a technical score of 95 out of 100, ensuring the website is secure and indexable so search engines can read it without errors. The business holds a discoverability score of 75 out of 100, meaning AI crawlers can access every page and potentially recommend the company to users. Graycor ranks number 3 of 7 Construction Company businesses that BizScoreAI has scored in Oakbrook Terrace.