Hartmann Valves GmbH is a leading manufacturer of ball valves, wellheads and kelly valves with a global presence. Decades of experience in the fields of oil, natural gas, petrochemicals, power plant engineering and storage technology are now used to advance heat production from deep geothermal energy, hydrogen storage and lithium production for the base load use of renewable energy. The company was founded in the post-war period as a small engineering firm and has since grown into a global systems provider with more than 230 employees and has been family-driven for three generations.

Hartmann Valves is known for quality and innovation and for its advanced product developments, from initial ball valve patents to customized high-performance valves and wellheads for demanding conditions. The company focuses on customized development and manufacturing. Product design, assembly and testing are carried out exclusively in the German plants in Celle and Burgdorf-Ehlershausen. Hartmann Valves fosters an active dialogue with its customers, fulfills special requirements and is seen, with its many years of experience, as a proficient partner.