Seven decades of continuous, locally-owned and operated service in Colorado. Over 25,000 successful projects. An unwavering commitment to quality, delivered on-time and within budget, one project at a time. These are the cornerstones upon which Colorado-based Drexel, Barrell & Co. has built our reputation for excellence. Since 1949, public and private sector clients have trusted us to provide land surveying, geomatics, and mapping. In 1964, we added civil engineering, and in 1993 transportation, traffic, and water resources engineering. Today, over 60 percent of our projects come from the public sector, including cities, counties, universities, school and utility districts and the State of Colorado. We handle complex projects by combining time-tested practices with innovative approaches. This is our way of matching the best solutions with the unique needs of each project to ensure your success.