SuperSeaCat
 SuperSeaCat was a shipping company operating fast ferries between Helsinki Finland and Tallinn Estonia during the years 2006—2008. It was jointly owned by Sea Containers and the Greece-based Aegean Speed Lines.The term SuperSeaCat had been used as name for Sea Containers' non-catamaran fast ferries since 1997. From the year 2000 onwards the company operated one SuperSeaCat (later three) under Silja Line brand between Helsinki and Tallinn.