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
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