C & O Lines
Caledonian
Calpam Twin
Canada Steamship Line Ltd
Cape May-Lewes
Carnival Cruise Lines
Celebrity Cruises
Chandris Lines
Christensen Canadian African Lines
Club Mediterranée
Color Lines
Colorado Belle
Compagnie Belge Maritime du Congo
Comgpagnie de Navigation Paquet (CNP)
Compagnie de Navigation Sud-Atlantique
Compagnie Générale Maritime (C.G.M. )
Compagnie Maritime Belge
Companhia Nationiale De Navegacao (C.C.N.)
Compania Argentina de Navegacion Dodero (C.A.N.D. )
Cook Strait Rail Ferries
Corsica Marittima
Corsica & Sardinia Ferries
Croisi Europe
Cunard Steamship Company