 The company is owned by Torghatten ASA

The company was founded on 14 December 1957 as a merger between seven bus and ferry companies in Trøndelag.The seven companies included Hevne Dampskibsselskap (founded 1885), Uttrøndelag Dampskibsselskap (1889), Fosen Aktie Dampskibsselskab (1904), Fosenhalvøya Billag (1937), Fosen Dampskipsselskap (1950) and Trondheimsfjorden Fosenferja (1955).In 1993 the company moved to its new terminal, Pirterminalen at Brattøra in downtown Trondheim, and in 1994 the passenger ferries moved there too.