Wetrok, specialised in professional cleaning systems, and Diethelm Keller Aviation, a manufacturer of food service equipment for the airline industry, operate as two independent companies under the umbrella of Diethelm Keller Industrial. They are well positioned to build leading positions in their respective markets.

For further information on the brands, please click on the logos below:


Board of Directors
Andreas W. Keller, Chairman
Adrian T. Keller
Angelo C. van Tol