Triad - a division of David Evans and Associates

Founded in 1975, Triad has earned an impressive reputation for producing high-quality solutions for a variety of project types around the Pacific Northwest. From our Woodinville office, our experienced civil engineers, surveyors, planners and landscape architects combine best practices with creative thinking to enhance the built environment. On the private-sector side, we focus on residential development, working with many of the region’s premier architecture and engineering firms, developers, homebuilders, construction companies and private homeowners. On the public-sector side we work with counties and cities, utility and school districts and others – on projects ranging from topographic, boundary and ALTA surveys to park planning and design. And there’s more to Triad than just great technical expertise. Everyday our employees, clients and community benefit from our empowering corporate culture, solid core values, lasting personal connections, and commitment to sustainable practices.