Alliant Systems is a premier design-assist and design-build mechanical contractor based in the Pacific Northwest, with a national presence for mechanical systems service. Our all-in-one approach and wide spectrum of services include new construction, tenant improvement, engineering, maintenance, controls, energy services, and commissioning. We pride ourselves on being a well-coordinated team that saves customers time, money, and headaches. Our projects range from small retail spaces to 30-story office buildings, educational and manufacturing facilities, hospitals, parking structures, and campus environments. Safety is our first priority on any project, and we are committed to energy-efficient solutions that protect our future. We also embrace diversity, equity, and inclusion as a core part of our culture.