Our History

Castle’s Omaha office moves to a new location with an office, shop, warehouse and yard to better support the community with earthwork and utility services.

Castle completes the Veterans Community Project St. Louis Village with civil design-build delivery.

Castle earns the Zero Recordable Accidents Safety Award (ZRASA) and the Construction Project Safety Award (CPSA) for the Bayer East Campus Utility Infrastructure Upgrade project from AGC Missouri.

Castle begins work on its largest solar project to date, the 792MW Double Black Diamond near Waverly, Illinois.

Castle completes underground piping package at Tomahawk Wastewater Treatment Facility in Johnson County, Kansas.

Castle earns 2nd place for the Safety Excellence Award, Subcontractor category by NAWIC Midwest Region

Castle earns the SLC3 Best Practice Award in the Front End Planning category for the Saint Louis University Utility System Upgrade project.

Castle wins 2021 Constructech Vision Award for its creation of a business intelligence dashboard to manage fleet maintenance and productivity. 

Castle completes multiple projects for the renovation and expansion of the iconic Gateway Arch National Park in St. Louis. Castle worked on the riverfront to help address flooding, the north gateway, north park grounds, south park grounds and Museum and Visitors Center.

The Hazelhurst Solar Facility in Georgia is awarded ENR’s 2017 Best Project, Energy/Industrial Category. Castle completed sitework on the project.

Castle reaches more than $50 million in revenue.

Grand Hall is completed on the Saint Louis University campus, one of many past and ongoing projects at SLU that Castle has worked on throughout its history. Since 1995, Castle has been involved in more than 10 major projects and many smaller projects on SLU’s historic urban campus.

Castle completes work with McCarthy on the Selmer Solar Farms in Selmer, Tenn., paving the way for a national expansion into the renewable energy market and the development of a traveling, specialized workforce.

A major contributor to the St. Louis Midtown redevelopment, Castle installed 1,080 linear feet of 144-inch RCP combination sewer for the new IKEA store in St. Louis’ Cortex Innovation Community.

Castle completes multiple mechanical, electrical and plumbing projects for the iconic Saint Louis Zoo, including the Sea Lion Sound Exhibit, the Sun Bear Forest and Painted Dog Preserve exhibits in the River’s Edge Expansion.

St. Louis-based McCarthy Building Companies acquires Castle Contracting, and Castle becomes a 100 percent employee-owned company.

Over three years, Castle completes work on multiple projects in and around the University of Missouri – Columbia including a Patient Care Tower at the University of Missouri-Columbia, University Hospital.

The Castle team moves to a new corporate office in the Webster Groves neighborhood of St. Louis.

Castle completes work on its first contract worth more than $10 million at the Taubman Prestige Outlet Center in Chesterfield, Mo.

Castle wins the AGC of Missouri Keystone Award for St. Louis Contractor of the Year, Earthwork & Utilities for the second year in a row.

Castle wins the AGC of Missouri Keystone Award for St. Louis Contractor of the Year, Earthwork & Utilities

Castle completes trenching and excavation for a grounding cable substation and solar power distribution in Gila Bend, Ariz., becoming Castle’s first solar project.

Work is completed on the new Barnes-Jewish Hospital Biomedical Research Building in St. Louis. Castle’s mapping service begins to take shape as utility mapping challenges are solved on-site.

Castle completes work on the new Lumiere Place Casino and Hotel in downtown St. Louis.

Castle completes trenching for site drainage, storm drainage and underground utilities for the Holcim Inc. Concrete Slipform Silos in Bloomsdale, Mo. Additional electrical ductbank required trenching through a significant amount of rock.

The subprime mortgage crisis leads to the collapse of the United States housing bubble, pushing the nation into a recession.

Demolition, mass excavation and shoring package are completed for the Lindell Boulevard Apartment Buildings in St. Louis.

Castle wins work on all seven contracts of the Metrolink Cross County Extension project, delivering $8 million in power and utility packages for multiple contractors, including the installation of 7.5 miles of Plastibeton® cable trench system.

Castle adds prime sitework and turnkey site construction services, further enhancing their sitework expertise.

Piping is completed at AMSCAN’s facility in Westchester, NY and officially marks Castle’s expansion outside the St. Louis area.

Castle’s wins the 2004 AGCMO Keystone Award – Specialty Contractor, Industrial/Infrastructure Under $2 Million for ongoing work at Busch Stadium.

Castle completes work on multiple projects associated with the $1B expansion of Lambert-St. Louis International Airport, including power duct banks in Missouri’s first tunnel built for vehicular traffic and installing major sewers for the first time.

Castle begins work on the infrastructure package for the new Busch Stadium, home of the MLB’s St. Louis Cardinals.

Overcoming multiple challenges, including rock under an active interstate and drastic elevation changes, Castle connects a water main for the new Christian Brothers College High School in St. Louis.

Castle adds earthwork and utility capabilities to its services, becoming a full-service total sitework contractor.

On September 11, America is forever altered as the war on terror comes to American soil.

Excited to be part of the St. Louis Loft District boom, Castle installs pavers in a zipper pattern down the middle of the busy Washington Ave., which required detailed planning and many phases to complete.