Royal Duyvis Wiener B.V.

24/7 Technical Support Hotline: +31 756 126 133

+31 756 126 126

Koog aan de Zaan (NL)

Who we are

Founded back in 1885 and headquartered in Koog aan de Zaan, the Netherlands, Royal Duyvis Wiener are one of the world’s leading manufacturers within the global cocoa, chocolate and nuts & seeds processing industry. Providing industrial solutions to the biggest companies in the market, Royal Duyvis Wiener supplies state-of-the-art equipment and expertise to facilitate the complete production process from bean to bar, helping their customers to reduce production costs, save energy and minimize downtime for maximum efficiency.


The best solutions come with full service

State of the art solutions for all processing needs

The Royal Duyvis Wiener group is well-known across the globe as solution provider in every industrial environment, in particular in the cocoa and chocolate industry. For either lab or large-scale production, single machines or turnkey processing plants, we offer multiple solutions for the complete cocoa – and chocolate production process.

Thouet 5 roll refiner

Full service guaranteed

The full service concept allows you to dip into our food technology and application expertise to select the best equipment for your process. We also offer service and maintenance to ensure the best machine life-cycle and have spare parts for all our machines and more. Technical support is available around the clock via the hotline.

Full service guaranteed-min

Innovation is the key driver

Our team of engineers, technical and process development experts always have an eye out for sustainable production processes and innovative solutions. The Technology Center in Koog aan de Zaan, the Netherlands combines our processing knowledge with your product needs. It facilitates customers’ product development by testing specific recipes on our machines.

VCA Certification
ISO 9001 Certification

Our key values


In our innovation goals, sustainability is a strong driver. In recent years a number of patented solutions have been launched to reduce both energy usage and waste.

Here to last

Royal Duyvis Wiener machines are globally known as the cream of the crop in durability, further improved by the strong focus on easy maintenance and automated solutions.


At Royal Duyvis Wiener we believe that everyone has the right be exactly the way they want to be. It’s our commitment to a healthy, supportive and inclusive workplace.


Royal Duyvis Wiener is very proud to carry the Royal designation, bestowed on us in 2011 by her majesty the queen for a long lasting contribution to the Dutch economy.


Royal Duyvis Wiener supports local initiatives to further the community – ranging from local parks and children’s activities to supporting the elderly in the community.