McMahon Associates, Inc. (McMAHON) provides full-service engineering and architectural services to public and private-sector clients. We are driven by a service-oriented philosophy to achieve client satisfaction on every project. Strong core values and a culture for success are nurtured within our walls, and we truly believe that this sets us apart and leads to our solid history of repeat business. Services are provided from our corporate headquarters in Neenah, Wisconsin and our regional locations in Machesney Park, Illinois and Valparaiso, Indiana.
Affiliate McMAHON companies include McMahon, Inc. (design/build) and Integrated Public Resources, LLC (public/private partnerships).
In 1909, Albert E. McMahon founded the company as a civil engineering firm, working out of a small office in downtown Menasha, Wisconsin. Former presidents include Merritt Clinton, Arthur Scholl, Robert McMahon (Albert’s son) and Thomas Probst. Dennis Lamers currently serves as President and CEO.
McMAHON has been recognized locally and nationally for award-winning designs and leadership in innovation; has been named a Top 500 Design Firm by Engineering News Record (ENR); a Best Civil Engineering Firm to Work For by CE News; and a Top 25 Engineering Firm by Milwaukee Magazine.