Drone Services Above & Beyond Others... Aerial drone services for land surveying (topographical photogrammetry), buildings/bridges/industrial structures inspections and surveys, aerial photography & video/film. DTA supplies market leading drone services for engineering applications and photography/film. We develop our own drone technology systems and are able to fly and apply engineering solutions simply not available from the average drone services companies who fly off the shelf drone systems. Think of the difference between a standard 4x4 and a Paris-Dakar vehicle and you'll get the idea. DTA works with some of the leading engineering consulting companies such as Atkins and has several years' experience in delivering market leading accuracy and precision in aerial land surveying. Our aerial photography and video capabilities are of the highest quality. Take a look at samples of our work and see for yourself. Drone services for civil-engineering and construction