Zehnder Group AG manufactures and distributes indoor climate solutions worldwide, including decorative radiators, comfortable indoor ventilation systems, heating and cooling ceilings, and industrial air cleaning products; it operates through brands such as Zehnder, Acova, Caladair, CORE, Enervent, Exvent, Filtech, Greenwood, Lifebreath, Rittling, Runtal, Siber, Fortuneway, and Nather. The company serves residential, commercial, and industrial customers with energy-efficient heating, ventilation, air purification, and heat recovery technologies. Founded in 1895 and headquartered in Gränichen, Switzerland, Zehnder Group conducts operations in over 70 countries across Europe, North America, and Asia-Pacific, with 18 production sites and a focus on EMEA and North American markets. In 2024, Zehnder Group acquired Spanish ventilation specialist Siber for EUR 86 million to strengthen its residential ventilation position in Southern Europe, particularly Spain and Portugal, where Siber provides complete systems for new-build apartments; it sold its non-core Climate Ceiling Solutions division and relocated radiator production from Switzerland to France while outsourcing in China. The company targets 5% annual sales growth and 9-11% EBIT margins through ventilation expansion, service enhancements, and North American leadership under new regional president Valentina Videva Dufresne from January 2025.