Ms
Flag
Company
Country
Martin Stutz, Brake
Germany
Smits
Netherlands
Armement Maritime M. Sarich
France
Martin Spaleck, Schneverdingen
Germany
Malaysia Shipping Corporation Sendirian Berhad of Kuala Lampur
Malaysia
Mediterranean Shipping Co., Geneva
Switzerland
MSC Crociere S.A. Switzerland
Manchester Ship Canal Co. Ltd, Manchester.
UK
Mindener Schiffahrts Gesellschaft Germany
Mercantile Steamship Co., Ltd UK
Metcalfe, Simpson & Co. UK
Melbourne Steamship. Co.
Australia
 Mainschiffahrts-Genossenschaft  Germany
 Mainschiffahrts-Genossenschaft  Germany
Metcalfe, Simpson & Co
Sweden
Med Sun Lines Ferries Ltd., Piraeus
Greece
Münsterische Schiffahrts- und Lagerhausgesellschaft

Münster Shipping and Warehousing Company

Germany
PT Mentari Sejati Perkasa
Ocean Shipping Co.
Indonesia
McGregor Steam Ship Co. New Zealand
Melbourne Steam Ship Co. Australia
Metropolitan Steamship Co. United States
Murray Steamship & Tourist Co. Pty. Ltd. Australia
Mannheimer Schiffahrtsverein von 1894 eV
.i.e. the non-profit Mannheim Shipping Association of 1894
Germany
Marmara Transport A.S., Istanbul Turkey
Moreton Tug & Barge Co. Pty. Ltd. Australia
Transportacion Maritima Mexicana S.A., Mexico City
Mexico
Société des Transports Maritimes Pétroliers France
Moran Towing & Transportation US
VEB Mathias-Thesen-Werft Germany
N.V. Maatschappij Vrachtvaart, Rotterdam
(also with dots)
Netherlands
Marítima Valparaíso Chile
Comptoir Général des Transports Marc Vincenzini
France
Myrstens Rederier

white flag, in center blue disk, yellow "M", in all corners blue "VOLO".

Volo is the name of the firm founded by Gustav and John Myrsten.

Sweden
Mannesmann Reederei GmbH Germany
Mannesmann Demag Material Handling Corp. United States
Ming Wah Shipping Company Ltd
Hong Kong
Metzendorff, Wilmans Co. Acc. Germany
Middellandsche Zeevaart Cie Netherlands