McMillen Inc. is an environmental, engineering, and construction firm providing a comprehensive array of technical services to the hydropower, water, wastewater, transportation, and heavy civil underground industries. With strong expertise in both design-bid-build and design-build delivery systems, we can provide our clients with the best design and construction alternatives. As a full-service consulting firm, we can enter a project at the planning stage, navigate the regulatory requirements, develop a design, and self-perform construction, start-up, and commissioning. The firm has more than 380 employees and 19 offices throughout North America, Australia, and New Zealand.
