Rosendahl was founded by Mr. Walter Rosendahl in 1959, with an ambition of becoming a high-tech cable equipment manufacturer, for a variety of industries. He managed to achieve the goals he had in mind already in 1965 – and since then Rosendahl has continuously been processing new technological developments.

In 1997, Rosendahl became a member of the actively global Knill Group. By becoming partners Rosendahl also got the advantage to cooperate with Nextrom. Today the group managed to become a leading global supplier of Fiber, Wire & Cable solutions.