Manufactures heating technology, water heaters, and ventilation systems.
Stiebel Eltron, headquartered in Holzminden, Germany, was founded in 1924 by Dr. Theodor Stiebel in Berlin. The company’s origins lie in the development of the coil immersion heater, followed by the production of small instantaneous water heaters. After its original Berlin facility was destroyed during World War II, Stiebel Eltron relocated its operations to Holzminden in 1944, where it remains based. Stiebel Eltron is a manufacturer specializing in central heating technology, including heat pumps, water heaters, ventilation, and air conditioning systems. Over the decades, it has grown from a small workshop into a multinational company, now employing over 6,000 people worldwide and reporting revenues in the range of €700 million in recent years. Its main production facilities are in Holzminden, with additional plants in Germany, Sweden, Slovakia, Thailand, China, and the United States. The company’s product portfolio includes air, ground, and water source heat pumps, as well as systems for hot water and renewables. In 2025, Stiebel Eltron introduced a new generation of heat pumps—named “hpnext”—which feature natural refrigerants (R290) and are designed for a range of residential and commercial applications. Aside from its manufacturing focus, Stiebel Eltron has a global presence, with subsidiaries and representatives in more than 120 countries, and continues to operate as a family-owned business. Recent investments in training and innovation centers at its Holzminden site underscore its emphasis on technical development and industry education.