Mols-Linien was formed by
DFDS in 1964 sailings commenced on 18 May 1966. A downturn in traffic following the
1973 oil crisis led Mols-Linien into a pooling agreement with rival Grenaa-Hundested Linien in 1979. In 1984
DFDS sold Mols-Linien and Grenaa-Hundested Linien to
J. Lauritzen A/S. The company was sold 4 years later to Danish investment company DIFKO. In 1999 Mols-Linien merged with
Scandlines subsidiary Cat-Link.
Scandlines sold its holding to the
Clipper Group in 2008. In July 2011, Mols-Linien announced it was to terminate the Kalundborg – Aarhus route and sell the two vessels operating the route. Mols-Linien terminated the Aarhus – Kalundborg route on 15 September 2011. Thereafter the route was operated by
Kattegatruten until October 2013 and then suspended. In 2016 Mols-Linien won a 10-year
public tender to operate ferry services to
Bornholm, and operations started in September 2018 under the name
Bornholmslinjen. In 2017, the routes in the Kattegat operated under the new name Molslinjen In January 2023, the Danish and Swedish
competition regulators approved the sale of
ForSea Ferries to Molslinjen for an undisclosed sum. In 2025, the company ordered three
battery-electric Incat catamarans for the Kattegat route in 2028. == Fleet ==