Press Release: 02.18.2021

McCarthy Strengthens Commitment to St. Louis Region with New Expanded St. Louis Headquarters

McCarthy's new office building

McCarthy Holdings Inc., one of the nation’s leading construction companies and the largest general contractor in St. Louis, has moved its St. Louis headquarters from a building it has occupied for more than half a century to a state-of-the-art office that is nearly 30,000 square feet larger than its previous space. Located at 12851 Manchester Road in St. Louis, McCarthy Holdings will occupy the building’s third floor and the Central Region of McCarthy Building Companies, Inc. will occupy the second floor.

“We are delighted to renew our more than 105-year-long commitment to keeping our national headquarters in St. Louis,” said Scott Wittkop, president and chief operating officer of McCarthy Holdings. “Our new space offers significant flexibility and collaboration, enabling us to better serve clients and the community, improve the workplace experience for our employees, as well as to accommodate future growth opportunities.”

Project Details

McCarthy, in collaboration with building owner Franklin Partners, completed extensive interior and exterior renovations prior to McCarthy’s recent move in. These efforts included demolition and renovation of all interior space, façade cleaning and resurfacing of parking lots.

mccarthy's new office space

Highlights of the new space include a grand central staircase connecting the second and third floors to encourage a healthy workplace, large conference and training facilities, abundant flex space to facilitate cross-team collaboration and shared amenities such as a fitness center and micro mart café. A sophisticated construction technology suite features smart screens and three-dimensional (3D) Virtual Reality (VR) technology that can give clients and partners an immersive visual experience and help project teams streamline the decision-making process.

In addition, the new office includes expansive collaboration space for hands-on demonstrations and hosting students interested in learning about a career in the trades, which is critical to the future of the construction industry, as well as the local St. Louis economy.

“How construction projects are delivered has evolved significantly,” explained John Buescher, McCarthy Central Region president. “Our new space will allow us to more effectively utilize technology and enhance collaboration to deliver successful project outcomes.”

Various accommodations have been made in response to the COVID-19 pandemic to ensure the health and safety of employees and guests. The building’s existing HVAC system was upgraded to a state-of-the-art air treatment system designed to neutralize pathogens such as bacteria, viruses and mold, as well as volatile organic compounds (VOCs). This system also includes a MERV-13 filter system that can be programmed to optimize the system’s capacity for fresh air changes.

In addition, workspaces were arranged to maximize social distancing. Plexiglass divider screens ensure adequate separation between individuals in various work areas, and panel heights between workstations in the open office areas were increased by 16 inches. All finish materials and surfaces were selected with a focus on the ability to effectively clean and disinfect all touchpoints, counters and furniture.

Located on 11 acres with an underground garage, the building was originally constructed in 1996 for AT&T. McCarthy is leasing the building from Franklin Partners.

Christner Architects designed the new space and McCarthy Building Companies served as its own contractor.

About McCarthy Holdings. Inc.

McCarthy Holdings, Inc. is the oldest privately held national construction company in the country – with more than 150 years spent collaborating with partners to solve complex building challenges on behalf of its clients. McCarthy Holdings, Inc. is comprised on McCarthy Building Companies, Inc. and Castle Contracting, Inc. Repeatedly honored as a Best Place to Work, McCarthy is ranked the 9th largest domestic builder (Engineering News-Record, May 2020). In 2019, McCarthy was recognized as a Forbes Best Employer for Diversity for the firm’s commitment to a diverse and inclusive workplace. In 2020, McCarthy became one of the first large national general contractors to formally commit to the Associated General Contractors of America Culture of Care pledge. With approximately 5,000 salaried employees and craft professionals, the firm has offices in St. Louis, Atlanta; Collinsville, Ill.; Kansas City, Kan.; Omaha, Neb.; Phoenix; Las Vegas; Denver; Dallas, Houston; and San Diego, Newport Beach, San Francisco, San Jose and Sacramento, Calif. McCarthy is 100 percent employee owned. More information about the company is available online at or by following the company on Facebook, Twitter, LinkedIn and Instagram.

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