Clayco has helped our clients turn their goals into groundbreaking projects for a variety of commercial building types.

Along the way, we’ve completely redesigned the way a construction company brings value to clients. Our integrated, full-services approach enables us to provide real estate services—from financing to leasing—and a truly collaborative design-build process that fast-tracks our clients’ most riskiest, complex and iconic projects.

It’s the intersection of creativity, design and execution with an eye on the practical considerations of timing and budgets. When this is all owned by a single, integrated team that operates without functional silos, the results are projects that fully meet the dreams, desires and expectations of clients.

Get In touch

Tom Sieckhaus

Executive Vice President & Shareholder
Corporate Business Unit Leader

+1 314-592-2221

Ryan McGuire

Executive Vice President & Shareholder,
Corporate Business Unit Leader, Chicago

+1 312-239-1293

Stinson Morrison Hecker LLP
Clayton, Missouri
The project relocated more than 100 of the law firm’s attorneys and staff to the 10th and 11th floors of...
Thompson Coburn, LLP – St. Louis
St. Louis, Missouri
– St. Louis — St. Louis, Missouri The renovation included high-end finishes and a conference center expansion. — Clayco completed construction on a 217,000-square-foot interior...
Thompson Coburn, LLP – Chicago
Chicago, Illinois
– Chicago — Chicago, Illinois Private attorney offices, private conference rooms and board rooms were placed on the outside perimeter of the space...
Koman/CityPlace Retail
St. Louis, Missouri
The two-story, mixed-use building features retail shops and Class A office space. — Clayco completed design-build work on this 50,653-square-foot addition to...
Kitchen K Restaurant
St. Louis, Missouri
This project was a 6,000-square-foot restaurant in the Merchandise Mart building on Washington Avenue in downtown St. Louis. — Clayco completed a...
Washington University Central Underground Garage
St. Louis, Missouri
Landscaping and outdoor patios were also constructed directly on the roof of the garage to camouflage its unadorned exterior. — Design-build of...
SAVVIS SC-7 Data Center
Santa Clara, California
Savvis is a Tier I ISP and has its own global OC-192 network providing interconnection to all of its data...
Magellan Health Services
Maryland Heights, Missouri
As part of its expansion, Magellan opened a 30,000-square-foot technical data center. — Clayco completed construction on a 238,000-square-foot campus for Magellan...
Health Care Services Corporation
Chicago, Illinois
This new precast and steel structure provides additional warehouse and office space for 300 new employees. — Clayco completed a 138,361-square-foot warehouse...
Citigroup Office Building
Elk Grove, Illinois
Building amenities include a fitness room, dinning room, a revamped kitchen and extensive security upgrades. — Clayco completed the demolition and construction...