The core activity of STA Sàrl is the execution of Travaux Acrobatiques, i.e. acrobatic works at height or in hard-to-reach locations, particularly through the use of rope techniques. This includes, among other things: facade work, such as glass cleaning, painting, installation of safety lines (ligne de vie) and antenna systems; maintenance and repair work on buildings and industrial plants; installation and dismantling of equipment and systems at height; and safety work, such as the installation of safety lines and nets. The company offers these services primarily to customers in the Swiss Romandy region.