Established in 1910, TKDA is a 100 percent employee-owned company of engineers, architects, planners, and specialized experts. We solve client challenges across the industrial, transportation, building + sites, and water markets. Our multi-disciplined teams form a strong firm, cohesive enough to draw on each other's strengths and versatile enough to adapt to changing business climates. We are committed to improving communities, helping businesses and industries grow, and building long-term client relationships. With offices in Chicago, Duluth, Saint Paul, San Bernardino, and Seattle, we work with clients from border to border and coast to coast.