McMahon Engineers/Architects Information

At McMahon, our success is built on the dedication and hard work of our people. Every day, our team invests their talent and passion into shaping the places they call home. From designing essential infrastructure to improving public spaces and planning sustainable solutions, our team is driven by a shared commitment to delivering results that truly matter. These efforts not only strengthen communities but also build trust and deepen the relationships we’ve cultivated with our clients over the years. With more than 150 professionals headquartered in Neenah, Wisconsin, and additional offices in Illinois and Indiana, McMahon thrives because of the people who care deeply about their work. Their dedication has defined us for more than a century and continues to guide us into the future.