Schaller Wassertechnische Industrieanlagen GmbH

Ernst Granzow GmbH & Co. KG is an electrical wholesaler and B2B technology supplier based in Leonberg, Germany. Operating six strategic branch locations across Baden-Württemberg including Heilbronn, Reutlingen, Bad Waldsee, Oberndorf, and Mannheim, the company supplies professional installers, industrial clients, and commercial contractors. The company offers over 2.6 million products, maintaining more than 20,000 active items directly in stock for 24-hour delivery. Key product lines encompass electrical installation materials, industrial components, photovoltaics, EV charging infrastructure, smart home KNX automation systems, lighting solutions, network devices, and safety technology. Specialized services include expert light planning, customized interface solutions, fiber optic splicing, tool rental services, and direct construction site container deliveries. By carrying leading brands such as Hager, KOSTAL, SMA, Mennekes, BYD, and its proprietary brand fairPLUS, the business acts as a central procurement partner for modern building automation and industrial electrical engineering projects.