Transforming The Way You Design, Make, and Build

Since its inception, MiTek has been evolving and innovating. Out of our early beginnings manufacturing steel connector plates, we’ve grown into a diversified global supplier of integrated software, services, engineered products and automated solutions to the building industry.


Mark Thom
Chairman and Chief Executive Officer
Terry McGrath
Executive Vice President, Chief Financial Officer
Tom Valvo
President, Homebuilding Solutions
Lance Howard
President, Commercial Building Solutions
Robert Stubbs
Managing Director, Asia Pacific & Services
Chris Hollander
President, New Market Growth
Lisa Tyree
SVP, Chief Human Resources Officer
David Sell
SVP, Chief Innovation Officer
Amit Shah
VP, Secretary and General Counsel
Rachel Seward
SVP, Corporate Communications & Corporate Social Responsibility


MiTek emerged in the 1950s when two innovators collaborated to solve a basic problem in building, and out of their innovation the component industry was born. But that was just the beginning. Since 2001, MiTek has been an important part of Berkshire Hathaway, innovating and expanding into other aspects of global building.

Our History

70 years of building the building industry


An engineer named John "Cal" Jureit invented and patented the Gang-Nail connector, the first metal punch-tooth connector plate for wood trusses that did not require supplemental nail fastening.


In 1956, Cal founded Gang-Nail Systems, Inc., a company that stamped the metal connector plates, invented and sold assembly machinery, and provided engineering services to companies who made prefabricated wood roof trusses for houses.


A St. Louis, Missouri, businessman named Walter Moehlenpah (left) expanded his hydrolics business, known as Moehlenpah Industries Inc., and enters the residential housing market by patenting his own version of a punch-tooth connector plate to make prefabricated trusses. Using Cal Juriet and Gang-Nail Systems as a model, Moehlenpah also manufactured machinery to apply the connectors plates and established operations in Africa, Australia, Canada, and Europe.


In 1972, Mohelenpah's company—now known as Hydro-Air Engineering— installed its truss program on a General Electric mainframe computer, allowing manufacturers across the country access to the program via remote terminals, enabling
customers to select from dozens of standard designs, or enter a special geometry.


During one of the housing’s deep recessions, Hydro-Air Engineering fell on hard times. Paul Cornelson (left), then Vice President of Ralston Purina, acquired Hydro-Air Engineering from the Moehlenpah family and began implementing changes to make the company profitable once again. During this process, Cornelson learned from customers that the software Hydro-Air Engineering provided to design trusses and generate production documents was the key to their value as a supplier. As Cornelson thought about the software and the role technology would play in the company’s value to its customers, he wanted to create a new identity that would bring technology into the company name. As a result, he forms the parent company, MiTek Industries, Inc., and becomes Chairman & CEO.


MiTek formed a joint venture with British company Bowater, PLC, for the acquisition of Gang-Nail Systems. Gang-Nail Systems and Hydo-Air Engineering continued to operate under the same ownership but as independent brands in the marketplace.


MiTek embarked on a new software project that embraced a then-new Microsoft technology called Microsoft Windows. Using the Windows platform, MiTek developed MiTek 2000 (later renamed MiTek 20/20), the first native Microsoft Windows truss design program with a multi-user, multi-tasking, graphical user interface.


Hydro-Air Engineering and Gang-Nail Systems operating companies are merged under one brand: MiTek Industries, Inc. For the first time, Hydro-Air Engineering and Gang-Nail Systems go to market as the one brand, MiTek.


With MiTek on the verge of being sold off by Bowater, PLC, Gene Toombs, then MiTek Chairman, President and CEO, called Warren Buffet of Berkshire Hathaway to discuss the possible acquisition of MiTek. Buffet wasn’t in the office that day, so his secretary suggested that Toombs write Buffet a letter. Although skeptical, Toombs and the team at MiTek prepared and mailed a packet of information to Buffet, including a bubble-wrapped connector plate (left). On July 31, 2001, MiTek became a member of the Berkshire Hathaway family of companies.


Anticipating the need to diversify beyond residential construction, MiTek acquired TBS Engineering, the world leader in producing automatic machinery for the lead acid battery industry. MiTek also had key business units focused on light-gauge steel framing, metal sheer panels, bracing connections, anchoring devices, and other systems designed for the commercial and non-wood construction markets.


MiTek opened a 177,600 square foot facility in St. Charles, Missouri, to serve as a manufacturing, research and development, and training center.


Throughout the early and mid-2000s, MiTek continued to make key acquisitions that diversified its range of solutions for the residential and commercial building markets.


MiTek is a global company focused on providing integrated software, services, engineered products, and automated solutions for the building industry worldwide, and empowers its customers to improve the way they design, make, and build.