Excellent innovations

global services

Royal Duyvis Wiener BV. founded in 1885, with its head office in Koog aan de Zaan, the Netherlands, is one of the leading manufacturers in the global cocoa and chocolate industry. We optimize production processes, supply new equipment and upgrade existing plants. We reduce production costs by saving energy and minimizing downtime. The Royal Duyvis Wiener group includes:  DuyvisWiener Germany (Aachen, Germany- formerly known as Thout and Lehman ) Royal Duyvis Wiener Brazil (Tambau, Brazil- formerly known as JAF Inox) Log5 (Koog aan de Zaan, Netherlands) and Royal Duyvis Wiener Indonesia (Jakarta).

Competitive in cocoa and chocolate equipment

The Royal Duyvis Wiener Group is the sole supplier of complete turnkey lines for the production of cocoa, chocolate, compound and nut pastes. For either lab or large-scale production, single machines or turnkey processing plants, we offer multiple solutions for the complete process from bean to bar.

Guaranteed continuity

The Royal Duyvis Wiener Group globally modifies, repairs and maintains all types and brands of industrial cocoa and chocolate equipment. Our Royal Duyvis Wiener team provides tailored solutions, either preventative or curative. The result is a reliable and efficient production process, by minimizing down-time, saving energy costs and providing optimum yields.

Corporate responsibility

We are proud to announce that in 2011, Her Majesty Queen Beatrix of the Netherlands has granted Duyvis Wiener the designation ‘Royal’. Through its shareholder, the P.M. Duyvis foundation, Royal Duyvis Wiener is involved in society, contributes and allocates its personnel and resources back to the community. With a long term outlook on, and responsibility for the global environment, the R&D team at Royal Duyvis Wiener constantly seeks to develop processing equipment which uses minimal energy, yet offers maximum durability and optimal quality.


Remarkable development

Our team of engineers, technical and process development experts, work side by side, focusing on sustainable production processes and innovative solutions. The technology centers in the Netherlands, Germany and Brazil, facilitate customers’ product development by testing cocoa, chocolate and confectionery products.

Serving our Customers across the globe

The Royal Duyvis Wiener Group is proud to have built a solid foundation by expanding its business and services in different parts of the world. Based in the Netherlands, Germany, Indonesia and Brazil, our dedicated staff is highly motivated in supporting our customers around the globe, bu assisting them to realize their optimal production facility, from raw beans to finished chocolate.

World Wide Agents