WAlaska Pacific Steamship Company
WAmerican President Lines
WBlue Star Line
WChandris Line
WCommodore Cruise Line
WCunard-White Star LineWAmerican President Lines
WFinland Steamship Company
WEpirotiki Line
WFathom (cruise line)
WFestival Cruises
WGreek Line
WHamburg Atlantic Line
WIbero Cruises
WIsland Cruises
WLloyd Sabaudo
WMajesty Cruise Line
WNorwegian America Line
WOcean Village (company)
WOrient Lines
WPacific Mail Steamship Company
WPeter Deilmann Cruises
WPolar Star Expeditions
WRoyal Mail Steam Packet Company
WRoyal Viking Line
WSally Cruise
WSitmar Cruises
WSwan Hellenic
WSwedish American Line
WTypaldos Lines
WWhite Star Line
WWindjammer Barefoot Cruises