Joining our clients to make a positive difference: DEA is a recognized leader in the design and management of complex transportation, land development, water resources, and energy projects nationwide. We combine the talents of engineers, surveyors, planners, hydrographers, landscape architects, and natural resources scientists to provide our clients access to a complete range of services. DEA is consistently ranked among Engineering News Record’s Top 100 Pure Design firms in the U.S., and among leaders in many of our local markets.