International Mercantile Marine Co.

The International Mercantile Marine Co., originally the International Navigation Company, was a trust formed in the early twentieth century as an attempt by J.P. Morgan to monopolize the shipping trade. The result was heavy losses for Morgan.

IMM was founded by shipping magnates Clement Griscom of the American Line and Red Star Line, Bernard N. Baker of the Atlantic Transport Line, J. Bruce Ismay of the White Star Line, and John Ellerman of the Leyland Line. The Dominion Line was also amalgamated. The project was bankrolled by J.P. Morgan & Co., led by financier J. P. Morgan. The company also had working profit-sharing relationships with the German Hamburg-Amerika and the North German Lloyd lines. The trust caused great concern in the British shipping industry and led directly to the British government's subsidy of the Cunard Line's new ships RMS Lusitania and RMS Mauretania in an effort to compete. However, IMM dramatically overpaid to acquire some of the amalgamated companies, due to overestimation of potential profits.

IMM was a holding company that controlled subsidiary corporations that had their own subsidiaries. Morgan hoped to dominate transatlantic shipping through interlocking directorates and contractual arrangements with the railroads, but that proved impossible because of the nature of sea transport, American antitrust legislation, and an agreement with the British government. One of IMM's subsidiaries was the White Star Line, which owned the RMS Titanic. Analysis of financial records shows that IMM was overleveraged and suffered from inadequate cash flow that caused it to default on bond interest payments in late 1914. As a result, a "friendly" receivership was put in effect in 1915, which allowed IMM to reorganize its finances; it emerged from the receivership in 1916. Saved by World War I, IMM eventually reemerged as the United States Lines, which itself went bankrupt in 1986.

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