The company is owned by the Åland based Rederiaktiebolaget Eckerö.

Eckerö Linjen should not be confused with its similarly named sister company Eckerö Line, which operates ferry services between Helsinki in Finland and Tallinn in Estonia.

This route is much shorter than the one sailed by Viking Line, Eckerö Linjen's main competitor in the Åland - Sweden traffic, taking only two hours to cross.

Since January 2005 the route is operated by the second M/S Eckerö, a notably larger ship than the ones that have previously sailed on the line, with the second M/S Roslagen used as an extra ship during the summer high season.

[2] Although Eckerö Linjen and Eckerö Line are technically separate companies, ships from one company have often been used to cover for ships of the other during dockings and technical malfunctions.