Mackprang Holding concentrates exclusively on the Schlemmer Group. Founded in 1878 as a trading company for agricultural raw materials, the family business based in Hamburg pursued a strategy of increasing diversification from the 1960s onwards. In 1963, Mackprang acquired Schlemmer GmbH and consolidated the business within its holding company. The original C. Mackprang jr. GmbH & Co. KG is continuing its activities as an independent enterprise owned by the previous shareholders, the Mackprang family.
The Schlemmer Group designs and manufactures cable connectors and cable protection systems, special components, electronic controller elements and precision turned parts for the automotive industry, electrical wholesalers and other sectors of industry such as mechanical engineering, railways and shipbuilding, and household appliances. Almost all motor vehicles and many machines contain components from the Schlemmer technology enterprise, which was founded in 1954 and can now, with the investment by the HANNOVER Finanz Group, once again operate as an independent, autonomous medium sized enterprise.