McMAHON is a full-service Engineering, Architectural and Project Management services firm with locations in Wisconsin, Illinois and Indiana.
McMAHON has a professional staff of over 160 employees that includes Architects; Civil, Process, Electrical, Environmental and Structural Engineers; Land Surveyors; Contract Operators; Administrative and Support Personnel. Design/Build, Project Management, Land Procurement and various other project delivery methods are a service we provide to clients.
McMAHON has always and is committed to designing for a sustainable future, and to helping our clients meet the challenges that lie ahead.
McMAHON...Innovation & Trust Since 1909.
Specialties
Process, Industrial & Structural, Civil, Environmental, Stormwater & Transportation, Architecture, Land Surveying & Site Development, GIS, Electrical & Plumbing, Design/Build and Project Management, Sustainable Solutions, Funding & Grant Assistance
