Contact Us

Clayco provides full-service, design-build solutions to clients across North America with easy access from coast to coast and headquartered in Chicago.

Visit our People page for information on how to contact members of our Clayco team.

Our offices are home to a diversely talented team of individuals who are held to the highest standards in the industry. We have assembled a team that exemplifies the values that have helped make Clayco what it is today. We have a passionate, high-energy, collaborative atmosphere that makes Clayco one of the “Best Places to Work” in Illinois and the St. Louis region.

Our offices provide full-service building solutions to deliver outstanding results on projects for all of the industries we serve. Whether it’s a new state-of-the-art computing facility at University of Illinois, a 2.5 million-square-foot distribution facility for Amazon or Centene’s new corporate headquarters, we deliver on the promise we make to our clients.

Find out more about how our design-build solutions can help you.

Subcontrators and Vendors
If you would like to submit your vendor/subcontractor prequalification, please see our Prequalification page.

General Questions and Comments
If you have general comments or questions about Clayco, please contact Steve Sieckhaus at sieckhauss@claycorp.com.

Media Inquiries
If you have media inquires for Clayco, please contact Sarah Green at greens@claycorp.com.

Diversity & Inclusion
For St. Louis & Nationwide, contact Sandra Marks at markssa@claycorp.com. For Chicago, contact Sam Boynes at boyness@claycorp.com.

Offices

St. Louis

2199 Innerbelt Business Center Drive St. Louis, MO 63114 p: +1 314-429-5100
 f: +1 314-429-3137

Clayton

7800 Forsyth Blvd Suite 300 St. Louis, MO 63105 p: +1 314-429-5100
 f: +1 314-429-3137

Chicago

35 East Wacker Drive Suite 1300 Chicago, IL 60601 p: +1 312-658-0747
 f: +1 314-890-7528

South Carolina

2 West Washington Street Suite 902 Greenville, SC 29601 p: +1 864-720-6970
 f: +1 864-551-4004

Kansas City

2100 Central Street Suite 01G Kansas City, MO 64108 p: +1 816-652-3001

Atlanta

2675 Paces Ferry Road Suite 450 Atlanta, GA 30339 p: +1 770-767-6341

Newport Beach

567 San Nicolas Drive Suite 160 Newport Beach, CA 92660 p: +1 949-629-1851

Philadelphia

300 Barr Harbor Drive Suite 720 Conshohocken, PA 19428

Phoenix

2398 E. Camelback Road Suite 520 Phoenix, AZ 85016 p: +1 602-833-6050

Culver City

8590 National Blvd Culver City, CA 90232 p: +1 424-361-3950