Royal Duyvis Wiener is the leading manufacturer of cocoa processing, chocolate production equipment, and nut pasteurization systems. Founded in 1885 in the heart of the Dutch cocoa industry we serve the leading companies in that market. Together with our customers, we develop the most innovative solutions. By supplying new and upgrading existing equipment, we optimise our customers’ production processes. We reduce our customers’ production costs by saving energy and minimising downtime.