4DS

Daldrup & Söhne Aktiengesellschaft, together with its subsidiaries, provides drilling and environmental services in Germany and Central Europe. It provides drilling services for near-surface geothermal energy, such as heat collectors and geothermal probes for heat or cooling; and drilling services for deep geothermal probes for heat recovery, as well as hydrothermal and petrothermal systems for electricity generation and heat recovery. The company also engages in the drilling of wells for the procurement of drinking, service, medicinal and mineral, boiler-feed, and cooling water, as well as thermal brine.