BSI was established in 1994. We are licensed Civil Engineers and Land Surveyors in Alabama and Georgia. With several offices to serve you, we have ability to focus on the individual needs of your next project, regardless of the location. Our diverse client list includes federal entities, municipalities, industrial businesses, attorneys, residential developers, commercial developers, financial industries, real estate agents and contractors. With Barrett Simpson Inc Survey & Engineering Services working on your project, feel confident in our experience to get to the job done.