People On The Move In The Local Construction Industry

Knoebel Construction Promotes Erica Boyd to Controller
Erica Boyd

Erica Boyd, of O’Fallon, MO, has been promoted to Controller at Knoebel Construction. Boyd is responsible for planning, directing and coordinating all accounting operational functions for the national general contracting firm, including overseeing accounts payable and accounts receivable activities, establishing benchmarks and measuring Knoebel’s performance, overseeing licensing and financial reporting, annual budgeting and implementing internal control policies.

Boyd joined Knoebel Construction in 2018 as an Accounting Coordinator. She holds a Bachelor of Science in Business Administration from the University of Missouri-Columbia.

Knoebel Construction, Inc. is a national general contractor specializing in retail center, multi-use, restaurant, grocery, healthcare and retail store construction. Projects range from major regional shopping centers to local restaurants. Celebrating its 40-year anniversary in 2021, Knoebel Construction provides full-service development and general contracting services to real estate development firms, independent restaurant and retail owners, and retailers. Centrally based in the St. Louis region, Knoebel Construction offers services nationwide.

Mackenzie McCulloch Promoted to Director of Design, Interiors at HOK 

Mackenzie McCulloch

Mackenzie McCulloch, LEED GA, has been promoted to Director of Design, Interiors in HOK’s St. Louis studio. McCulloch brings more than 10 years of experience in design and workplace strategy on complex projects across the country.  

With special expertise in workplace strategy, Mackenzie works collaboratively with clients and project teams to elevate the workplace experience.  “We are excited to promote Mackenzie to Design Director, his creativity, talent and passion position him to lead clients and the design team.” Margaret McDonald, Senior Principal 

As Director of Design, Interiors, McCulloch will continue leading significant projects for the firm, foster relationships with potential clients and collaborate with HOK’s interiors leaders globally. 

Since joining HOK in 2013, McCulloch has led the design of award-winning workplace projects in the St. Louis region and beyond for clients including Microsoft, Tyson Foods and Visa. Mackenzie also led the interior design for the new $154 million transformational Stryker Instruments R&D facility. 

McCulloch is active with professional and civic organizations across the city including the St. Louis Chapter of AIA and Young Architects Forum, as well as Focus St. Louis. He is a board member of St. Louis Start Up Ambassadors. McCulloch has a Bachelor of Architecture from Mississippi State University. 

With offices around the globe, HOK designs buildings and spaces that respond to the needs of people and the environment. HOK designers are rooted in technical excellence, driven by imagination and focused on a solitary goal: to deliver solutions that inspire clients and communities. 

May 7, 2021

Holland Construction Services Hires Stacey Martin as Director of HR &Talent Strategy

Stacey Martin

Mike Marchal, president of Holland Construction Services (Holland), is pleased to announce that Stacey Martin has joined the Holland team as the new Director of Human Resources and Talent Strategy.  

Martin has 14 years of human resources experience, and brings a wealth of knowledge in providing strategic leadership in the planning and implementation of quality-based, integrated human resources programs for employees. In her new role with Holland, she will be responsible for managing all aspects of talent management including recruitment, onboarding, performance management, professional development, engagement and total rewards.

Martin’s key responsibilities will be to develop and coordinate HR activities and strategies across all departments within the organization.  She will be working closely with department heads throughout the company to design and implement plans that will benefit employees, especially around recruitment, employee satisfaction and professional growth.

Martin graduated with her bachelor’s degree from the University of Missouri – St. Louis and is a certified Strategic HR Business Partner through the Human Capital Institute (HCI). Outside of work, she is actively involved in the community, and has volunteered her time with Ronald McDonald House Charities, Operation Food Search and the nonprofit, KidSmart. She has also raised thousands of dollars over ten years volunteering her time with Susan G. Komen Race for the Cure.

Holland Construction Services is a full-service construction management, general contracting, and design/build firm guided by the principle of providing clients the best possible build experience on every project. Holland has been providing quality construction services throughout Illinois and Missouri since 1986, and is led by founder and CEO Bruce Holland, President Mike Marchal, and Vice President & Multi-Family Director Doug Weber. For more information, visit Holland’s website at

Brad Hilton joins Wiegmann Associates as Project Engineer
Brad Hilton

Brad Hilton of St. Charles, MO has joined Wiegmann Associates as Project Engineer. He is responsible for designing energy-efficient, cost-effective and high-performing HVAC systems. He also performs heating and cooling loads for HVAC systems, selects appropriate HVAC equipment and uses 3D modeling software to generate design and construction documents.

Hilton previously interned with U.S. Steel as a Mechanical Engineer. He holds a Bachelor’s of Science Degree in Mechanical Engineering from Missouri University of Science & Technology.

Wiegmann Associates is a St. Louis-based mechanical contractor and a national leader in design/build HVAC projects. Since 1995, Wiegmann Associates has engineered and installed innovative, energy-saving and cost-efficient HVAC solutions, refrigeration systems and automation controls for clients in a wide range of industries, including senior living, food and beverage distribution, warehouse, healthcare, commercial and industrial. Wiegmann also provides 24-hour preventative maintenance programs and service in the St. Louis region. Wiegmann is ranked among the top 50 specialty contractors in the Midwest by Engineering News-Record and the largest mechanical contractors by the St. Louis Business Journal. For more information, visit or call (636) 940-1056.

April 23, 2021

Joe Dietz Creates Dietz Architectural Products Will Rep WINCO Window Company

Joe Dietz

WINCO Window Company, a St. Louis-based manufacturer of architectural and commercial aluminum windows, has announced that its vice president Joe Dietz will be now managing its Midwest sales operations, replacing Tim Cox, who has retired.  

Dietz will work as an independent rep covering Missouri, Southern Illinois, Kansas, and Nebraska . He will continue to support his current Winco responsibilities until September, 2021.  Dietz is also opening his own independent company, Dietz Architectural Products, LLC., which he believes will allow him to better serve WINCO customers directly.

WINCO will continue to benefit from its relationship with Dietz. “With his extensive knowledge of the company, estimating, and technical aspects of aluminum windows, we believe that Joe will continue to be a great value to WINCO customers,” says Bill Krenn, president of WINCO.  “His skill set is unique, and we are confident he’ll bring insight to the architectural community we serve.”

One of Dietz’s first goals is to help schools and essential facilities design safe rooms for tornado and intruder protection.  “Winco is one of the few companies to offer storm-resistant products tough enough to meet the new FEMA 361 requirements.”

 “I have always had a passion to problem solve and build relationships,” explains Dietz of the new career step. “Last fall, I was cleaning out our basement and found a box of papers that I wrote in college. One was a career planning paper, where I wrote that when I am 45, I will own my own company. Then Tim (Cox) announced his retirement, and the opportunity was there.”

Dietz has been with WINCO for 11 years. He has a B.S. in Business Administration, Marketing/Management and graduated Summa Cum Laude from Lindenwood University in St. Charles, Missouri.

For more information, contact WINCO Window Company at (314) 725.8088 or visit

McCarthy Holdings, Inc. Promotes Two

Patrick Devero

McCarthy Holdings, Inc., a premier national builder, has promoted Pat Devero to the position of Vice President, National Safety. Based in St. Louis, this veteran safety professional will focus on advancing the company’s industry-leading safety program and genuine safety culture throughout the U.S. His focus will be on supporting McCarthy’s Central, Southern and Southwest Regions.

Devero joined McCarthy in 2005 and initially served as an onsite Safety Coordinator and Manager on several commercial and industrial projects throughout the Midwest. He relocated to Atlanta in 2011 to lead that team’s overall safety program as McCarthy Southern Regional Safety Director. In 2018, he was appointed National Safety Director.

Devero earned a bachelor’s degree in safety management from the University of Central Missouri in Warrensburg. His professional designations include Certified Safety Professional and Construction Health and Safety Technician from the Board of Certified Safety Professionals.

“Pat has achieved exceptional safety results throughout his McCarthy career,” said Kevin Maitland, McCarthy Senior Vice President, National Safety. “Our construction teams will benefit from his leadership, expertise and commitment to prioritizing safety and health.” 

Rob Graham

McCarthy Holdings, Inc., a premier national builder, has promoted Rob Graham to the position of Vice President, National Safety. Based in St. Louis, this veteran safety professional will focus on advancing the company’s industry-leading safety program and genuine safety culture throughout the U.S. His focus will be on supporting McCarthy’s Southern California, Northern Pacific and Southwest Regions.

Graham’s McCarthy career began in 2002 as a Project Safety Coordinator in the Central Region. He relocated to San Diego to work as Project Safety Coordinator and was promoted to McCarthy Southern California Regional Safety Manager in 2005 and Regional Safety Director in 2008. He was named National Safety Director in 2019.  

Graham earned a bachelor’s degree in environmental health & safety from Illinois State University in Normal. He’s a Certified Safety Professional from the Board of Certified Safety Professionals and a Certified Industrial Hygienist from the American Board of Industrial Hygiene.

“During his 19-year McCarthy career, Rob has delivered outstanding safety results,” said Kevin Maitland, McCarthy Senior Vice President, National Safety. “He’s a valued resource whose expertise and resourcefulness will benefit the safety and health of McCarthy teams across the U.S.” 

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 of McCarthy Building Companies, Inc. and Castle Contracting, Inc. Repeatedly honored as a Best Place to Work and Healthiest Employer, McCarthy is ranked the 9th largest domestic builder (Engineering News-Record, May 2020). 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 FacebookTwitterLinkedIn and Instagram.

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