Silja Line is a Finnish shipping company and cruiseferry brand owned and operated by the Estonian shipping company AS Tallink Grupp, for car, cargo and passenger traffic between Finland and Sweden. The former company Silja Oy—today Tallink Silja Oy—is, since 2006, a subsidiary of AS Tallink Grupp, handling marketing and sales for Tallink and Silja Line brands in Finland as well as managing Tallink Silja's ship employees. Another subsidiary, Tallink Silja AB, handles marketing and sales in Sweden. Strategical corporate management is performed by Tallink Grupp which also own the ships.
https://en.wikipedia.org/wiki/Silja_Line