The core activity of Engeo AG is the development, construction and maintenance of geothermal systems, particularly ground-source heat exchanger systems, as well as the provision of engineering services and services in the field of geothermal energy. This includes, among other things: * The development and distribution of test automats and measuring devices for geothermal systems * The planning, execution and maintenance of ground-source heat exchanger systems and brine circuits * The performance of Thermal Response Tests (TRT) and other measurements for the analysis and optimization of geothermal systems * The provision of engineering services, such as the sizing, quality assurance and measurement of geothermal systems * The development of special equipment and solutions for geothermal energy The company positions itself as a specialist in the use of geothermal energy for heating, air conditioning and hot water preparation of buildings.