Experience with a
proven track record

Graycor Southern

Consistently deliver. Continuously improve.

Graycor Southern Inc., formerly Early Construction Inc., is comprised of three divisions which support our clients; the Power Division, Process Division, and Power Services Division. While the main focus is primarily based on supporting clients with general construction services, Graycor Southern Inc. also provides specialty mechanical boiler construction and pressure part services. These specialty services include a wide range of capabilities from the complete erection of power boilers and related auxiliary equipment, to certified code welding associated with boiler outage and emergency repair services. Graycor Southern Inc. is a full-service ASME “S”, “U”, and NBIC “R” Stamp certified code welding contractor.

Our Markets

When you’re making a mark on the world, make it count. Construction is bigger than the end result. It’s everything that goes into the process, and the role that you’re building will play in the lives of those that interact with it. On top of it all, fine arts centers, museums, parochial and child-care facilities, cultural and educational institutions often have limited funding and sensitive schedules.



Critical Processes

Large Pressure Part Replacements


Project Delivery

Preconstruction Services

Project Controls

Our People


Leadership Team

John Trussell

Operations Manager

Darryl Thornton

Business Development Manager

John Paul White

Safety Director

Todd Patterson


Brian Simpson

Project Director

Rich Hogan


Looking for a Local Connection?

The Graycor group of companies employs more than 1,600 construction specialists at its headquarters in Oakbrook Terrace, IL, regional offices and project sites throughout North America.


Everything we do begins with teamwork.

At Graycor, we invest in the welfare and professional growth of our people. We place greater value on partnerships over profit, and we operate within a set of core values that frame our strategy and culture, including maintaining a long-term perspective, upholding integrity and honesty, demonstrating safety leadership, emphasizing relationships, creating value, striving for continuous improvement, and achieving a healthy balance of work and family life. At Graycor, we’re building something more.


Nothing is more important than safety…not production, not sales, not profits.

Safety is not just a policy but a key part of our culture. As a family-owned and -operated company, it strikes to our core—each one of us is essential. Our health, our safety and the quality of our worksites is priority one. Protecting people means perfecting the environments in which they work. We believe errors are avoidable because our teams have accomplished major self-performance projects without a single injury. Our “Zero Injury” goal is the challenge every one of us aims to achieve every time we set foot on site.

Inspiring Excellence
Zero Punchlist
Operator Qualification
Gold Shovel Standard Certified