David Evans and Associates, Inc., formerly known as TriAxis Engineering, is a leading engineering and construction services firm based in Portland, Oregon. With over 47 years of proven success, DEA offers a wide range of services including energy development, land development, transportation, water and environment, surveying and geomatics, and marine services.
As employee-owners, DEA's team members are dedicated to delivering exceptional results and ensuring client satisfaction. The company's core values of innovation, excellence, and commitment to employee wellbeing and growth drive their industry-leading work in engineering, design, and construction services.
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