Our two-storey business premises are located in an industrial area close to the center of  Winterthur, Switzerland.

On an area of 400 m2 you will find in addition to our offices a conference room and our stock of goods. Our assortment consists of about 1300 articles for butcher supplies.

Some of our items have been developed by ourselves and are being assembled in our house.

Others are being packed and labelled in a workshop for physically challenged people.

Some 4000 consignments per year leave our packaging room. We deliver goods throughout Switzerland and some articles are also delivered to customers all over Europe and overseas.


Mr. J. Isler, the founder of the firm, set up a small workshop in Winterthur in 1885, where he made butcher steels.

The farmer, Jakob Zehnder helped him out, when need arose. A small trading shop developed, where he sold the steels together with a variety of other butcher supplies. Today the assortment includes around 1000 various articles.

In 1965 Mr. Karl Isler sold the workshop to his employees, Jakob and Bruno Zehnder, who continued the firm under the new name of "Mechanical Workshop J. + B. Zehnder", still producing mainly butcher steels.

A few years ago Hanskaspar Etzensperger, son­in­law of Mr. Bruno Zehnder, joined the business and took over the shares of Mr. Jakob Zehnder. The manufactoring plant is named now "Zehnder + Etzensperger".

In 1977 Mr. Karl Isler changed his trading company into K. Isler Ltd. and handed it over in 1983 to Mr. Bruno Zehnder jr. 

In our family enterprise there are today two firms working toge­ ther very closely.

In 2017 Mr. Bruno Zehnder handed it to his son Balz Zehnder.

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