Columbia is a small business, consulting firm located in Duluth, Georgia. We offer professional services in the areas of civil site design, transportation, water resources, land planning, landscape architecture, arborist services, institutional planning and design, land acquisition, construction management and surveying for both public and private clients. Our staff of expert professionals is licensed in multiple states and includes civil engineers, landscape architects, land planners and land surveyors, several of whom hold the distinction of LEED® Accredited Professional.