History of SICO GmbH in Witten

Variety and quality since 1985

Fascinated by the unique properties of silicone rubber as well as by its wide range of uses, we have been deeply involved with this material since 1985. As one of the leading European companies in the processing of silicone rubber, we are able to manufacture and deliver a large variety of standard products, along with customized solutions, in a very short time. 

The great depth of our production enables us to intervene in the manufacturing process at key moments, allowing us to influence important quality aspects ourselves.

Speaking of quality: Ever since 1996, our company has been certified according to DIN EN ISO 9001. In addition, since 2006 we have met the criteria of ISO/TS 16949, the first globally valid certificate for management systems of automotive suppliers and their subcontractors. 

Whether you are active in the automotive, food, or electrical industry, or in any other industry for that matter: If silicone provides a solution to your requirements, we gladly welcome the challenge!


The growing demands on our products and services require constant improvement in all areas of our company. They also call for a trusting collaboration with our customers and suppliers. For this reason, we are ...


SICO stands for more than 300 qualified employees at two locations, Witten (Germany) and Velké Pořiči (Czech Republic), producing a wide variety of moulded parts, tubes, hoses, and profiles...


SICO maintains its solid position in the European market first and foremost due to its high degree of flexibility and the great depth of its production. This depth allows us to remain in almost complete...