Heinrich Thulesius GmbH & Co KG was founded in 1949 in Bremen, Germany and partnered with Sumitomo Electric Group of Companies as Sumitube® heatshrink products to its customers primarily in the industrial and electrical engineering sectors.

In 2011, Heinrich Thulesius became a Sumitomo Group company and is a wholly owned subsidiary of SEI Interconnect Products (Europe) Ltd. (SEPE). Today Heinrich Thulesius is the sales outlet in Germany for the manufacturing sites of the Sumitomo Electric Group of Companies.

Heinrich Thulesius offers a variety of high quality products. These include Sumitomo heat-shrinkable products, sleeves and sleeving, cable markers, braided sleeves, insulation tubes, cable ties and special cables.

As a service oriented company Heinrich Thulesius can offer expert advice of a highly skilled team, small MOQ’s and fast supply.

A ISO 9001:2008 company.

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