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Company
Country
Murray, McNab & Co., Glasgow
UK
Morgan Line (Southern Pacific Steamship Company) United States
Loucas G. Matsas Salvage and Towage Maritime Company
Greece
New York & Charleston Steamship Co United States
Misje Norway
Mystic Steamship Company United States
Ludwig Müller Germany 
Melville Shipping Ltd Trinidad & Tobago
Marittima Ravennate
Italy
J. Mawson & Son UK
PT Pelayaran Meratus Indonesia
McCormick Steamship Co United States
Michalinos Maritime & Commercial Company, Limited, Piraeus
Greece
Mayamar Marine Enterprises S.A., Piraeus
Greece
La Tunisienne Steam navigation Co Ltd
UK
H. E. Moss & Co., Liverpool.
UK
Compañía Marítima Spain
C. Mackprang jr. GmbH & Co.
KG/„Nordstern“ Reederei GmbH
Germany 
J.F.J. Montreuil France
Mols-Linien A/S (Ebeltoft)
Denmark
Morgan Line (Southern Pacific Steamship Company) United States
Klaus Mimietz, Rendsburg
Germany
Joh.Marbs Germany
L.F.Mathies & Co.
Germany
Moore & McCormack United States
Malmoil Sweden
Montan Reederei Gmbh Germany
Malmö Rederi A/B Sweden