The roots of Sihl date back 500 years, when it was first referred to as „the old paper mill on the island“, in Zurich. In 1935 the corporation Sihl was founded, taking its name from a river in Zurich, which provided the perfect site for a mechanical paper factory.
Formerly operating under the name Renker GmbH, the production site in Düren (located between Cologne and Aachen), with more than 100 years experience in paper coating, merged with Sihl in 1990 and became Sihl GmbH Düren. The production site in Bern was integrated into the Sihl-Group in 1991.
Today Sihl Düren (formerly Renker) and Sihl Bern (formerly Multitec) form a strong group, the Sihl Group. The Digital Imaging and RI divisions of Sihl have been an active part of the Italian Diatec Group since November 2003.