Number of employees
100-199
About David Evans and Associates, Inc. (DEA) DEA is an employee-owned Oregon corporation governed by an eight-member board of directors. The firm combines the talents of architects, engineers, landscape architects, planners, scientists, and surveyors to provide its clients access to a complete range of services.Since its founding as a two-person land development firm in 1976, DEA has emerged as a recognized leader in sustainable design and management solutions for complex transportation, land development, energy, and water resources projects nationwide.s top 100 pure design firms in the U.S. and among the leaders in many of its local markets. DEA’s award-winning projects are a testament to its expertise.