Лондонский Географический Институт.
Карта из атласа 1920 года.

    * Aberdeen Line (Aberdeen & Commonwealth Lines)
    * Allan Line (Montreal Ocean Steamship Company)
    * American Export Lines
    * American Line - American Steamship Company (International Navigation Co.)
    * American Mail Line
    * American Merchant Lines
    * Anchor Line (Henderson Brothers)
    * Anchor-Donaldson Line (Robert Reford Co., Ltd)
    * Atlantic Transport Line
    * Baltic America Line
    * Baltimore Mail Line
    * Black Ball Line
    * Blue Funnel Line
    * Canadian Pacific (CPOS)
    * CGT French Line - Compagnie Générale Transatlantique
    * Cosulich Line - Trieste
    * CPR Canadian Pacific Railway Atlantic Steamship Lines
    * Cunard-Anchor Line - See Anchor Line
    * Cunard Line - Cunard Steam Ship Company, Ltd.
    * Cunard White Star Line
    * Norwegian America Line (NAL) Den Norske Amerikalinie
    * Dollar Steamship Line
    * Dominion Line
    * Donaldson Atlantic Line
    * Eastern Steamship Lines
    * Fabre Line
    * Furness - Bermuda Line (Furness, Withy & Company, Ltd.)
    * Grace Line
    * Hamburg American Line (HAPAG) Hamburg Amerika Linie
    * Holland America Line (N.A.S.M. / HAL) Holland Amerika Lijn
    * Inman Line
    * International Mercantile Marine Company (IMM)
    * Italia - Lloyd Sabaudo - Navigazione Generale
    * Italian Line - Italia Societa Anonima di Navigazione, Sede in Genova
    * KNSM / Royal Netherlands Steamship Co., Amsterdam
    * Lamport & Holt Line
    * Leyland Line
    * Lloyd Sabaudo
    * Messageries Maritimes
    * N.G.I. Italian Line / Società di navigazione Italia / Navigazione Generale Italiana
    * North German Lloyd - Norddeutscher Lloyd Bremen - The North German Line
    * Panama Pacific Line
    * Red Star Line / Red Star Linie
    * R.M.S.P. - The Royal Mail Steam Packet Company
    * Royal Mail Lines, Ltd.
    * Scandinavian American Line - Skandinavien Amerika Linen
    * Swedish American Line (SAL) Svenska Amerika Linien
    * Union-Castle Mail Steamship Co., Limited.
    * Union Steamship Company
    * United American Lines (Harriman Line)
    * United States Lines
    * United States Shipping Board Emergency Fleet Corporation (USSBEFC)
    * U.S. Mail Steamship Company
    * White Star - Dominion Line
    * White Star Line
    * Wilson Line of Hull
    * Yeoward Line