ESCO was also a co-founder, and for a time the sole owner, of Tallink and Estline.
In March 2011, Stena Line announced the Stena Voyager and her running partners on the Belfast – Stranraer route (Stena Caledonia and Stena Navigator) were to be replaced in Autumn 2011 by the Stena Superfast VII and Stena Superfast VIII chartered from Estonian ferry operator Tallink.
In March 2011, Stena Line announced the Stena Caledonia and her running partners on the Belfast - Stranraer route (Stena Navigator and Stena Voyager) were to be replaced in Autumn 2011 by the Stena Superfast VII and Stena Superfast VIII chartered from Estonian ferry operator Tallink.
The Silja Line, Viking Line and Tallink ferries operating between Helsinki, Turku or Tallinn and Stockholm call briefly at Åland, at either Mariehamn or Långnäs.