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181 companies

Sewart Supply Inc

Morgan City, LA, United States

Sewart Supply Inc is the largest Twin Disc distributor and support center in the United States, providing marine and land-based transmissions, propulsion control systems, and electronic control technology with over 50 years of industry experience.

Ships Machinery International, Inc.

Miami, FL, United StatesUpdated Apr 2007

Ships Machinery International, Inc. is a leading provider of heavy-duty marine equipment, offering propulsion, maneuvering, fire-fighting, deck machinery, davits, and custom-designed marine equipment with comprehensive support and spare parts supply.

Siemens AG, Marine Solutions

Hamburg, GermanyUpdated Sep 2004

For more than a hundred years Siemens has been well known in the marine business as a successful vendor geared towards increased value for operators. Siemens specializes in the design, manufacture and commissioning of electrical equipment for all types of merchant ships, naval vessels and submarines. As a turn-key solutions provider, Siemens has the power to take responsibility for the complete electrical-system on board ships. Systems made by Siemens help to operate ships safely, efficiently and compatibly with the environment. Our latest propulsion system, the podded propulsion system SSP (a joint develop-ment with Schottel GmbH), has been successfully launched to the marine market. Siemens is experienced in conversions and repair, especially when it comes to tight time frames. All over the world Siemens' subsidiaries offer service and after sales support.

Simplex Americas LLC

Flemington,, New Jersey, United StatesUpdated Jan 2005

Simplex Americas LLC specializes in maritime propulsion products and services, including shaft seals, bearing systems, torque-limiting couplings, and marine repair and maintenance with worldwide service.

Simplex-Turbulo Co Ltd

Andover,, Hampshire,, United KingdomUpdated Feb 2008

Established in 1935, Simplex Turbulo Co Ltd specializes in 4-stroke, medium-speed engine spares and marine components, supporting maintenance programs with filtration systems, condition-monitoring devices, and engineering services.

Skinner Engine Co.

Erie, PA, United StatesUpdated Nov 1998

Skinner Engine Company was a historic American marine steam engine manufacturer founded in 1868 in Herkimer, New York and based in Erie, Pennsylvania from 1873 until its closure in 2013. The company produced approximately half of all Universal Unaflow steam engines built in the United States.

Soeby Shipyard Ltd.

Soby Aeroe,, DenmarkUpdated Apr 2005

Søby Værft is a Danish shipyard with over 90 years of experience offering shipbuilding, ship repair, and maintenance services including dry dock facilities and innovative green propulsion solutions.

Souter Marine Ltd

Isle of Wight,, United KingdomUpdated Jan 2006

Souter Marine Ltd is a marine engineering company based on the Isle of Wight, United Kingdom, specializing in marine propulsion and engineering services.

Stadt AS

Gjerdsvika, NorwayUpdated Oct 2006

STADT AS develops and delivers reliable, safe, and cost-efficient propulsion solutions for naval and commercial ships, focusing on zero emission shipping.

State Machine-building Enterprise Zvyozdochka

RussiaUpdated Dec 2000

State Machine-building Enterprise Zvyozdochka is a Russian company specializing in shipbuilding, ship repair, propulsion system manufacturing, marine equipment recycling, and military-technical cooperation.

Steerprop Ltd.

Rauma, FinlandUpdated Jan 2007

Steerprop Ltd. designs and manufactures azimuth propulsors and propulsion systems for vessels operating in harsh marine conditions, including ice-covered seas.

Stone Marine S.A. (Pty) Ltd

Cape Town,, Western Province, Rep. Of South AfricaUpdated Oct 2006

Repairs to all makes of CP and FP propellers,CP Systems,Control Systems and thrusters.Sales of new and reconditioned propellers,line and net cutters,cutlass bearings,spares for CP systems and thrusters.

Sulzer Hydro Gmbh

Ravensburg, GermanyUpdated Aug 2026

Sulzer Hydro GmbH (now ANDRITZ Hydro) in Ravensburg, Germany manufactures Escher Wyss controllable pitch propellers for naval and merchant ships, and develops hydropower solutions for renewable energy.

Swede Marine Propulsion AB (SMP)

Hono, SwedenUpdated Aug 2005

We produce and provide service on propellers and propeller equipment. Our speciality is C P Propellers. We are a growing company and in 1999 a new workshop was built to accommodate the increasing demand of our services around the world. With our new workshop we have substantially increased our production capacity. In 2000 we bought the company Johan Walter Berg (JW Berg AB), which specializes in service and repairs of propellers. We hope to be of service to you.

Tarntank Rederi AB

SwedenUpdated Jul 2002

Tärntank Rederi AB is a Swedish family-owned shipping company specializing in product tankers, committed to safe and sustainable transportation with a focus on innovation and environmental responsibility.

Teknicraft Design Limited

Birkenhead,, Auckland, United StatesUpdated Aug 2016

All American Marine is a U.S.-based commercial boat manufacturer specializing in custom aluminum vessels including high-speed catamarans, hybrid-electric passenger ferries, and advanced research vessels, focusing on innovation, fuel efficiency, and sustainable vessel design.

The Evolution Co

Rockland,, Maine, United StatesUpdated Sep 2004

The Evolution Co specializes in marine couplings and surface drives, providing high-quality propulsion solutions.

The Louis Allis Company

Milwaukee, WI, United StatesUpdated Nov 1998

Founded in 1901 in Milwaukee, Louis Allis manufactures and repairs custom large-frame DC motors, including motors for ship propulsion on dredges, tugboats, and military vessels. Now a subsidiary of WorldWide Electric.

The Motor Ship

United KingdomUpdated May 2026

The website of the leading international technical marine journal; essential information for world shipping and shipbuilding professionals; regularly updated news & features, web links, events & recruitment

The National Marine Propeller Association

1527 Lewison Ave. NE, Grand Rapids,, MI, United StatesUpdated May 2010

The National Marine Propeller Association is a professional organization committed to excellence in marine propeller repair, manufacturing, sales, and customer service since 1992.

Thrustmaster of Texas Inc.

Houston, TX, United StatesUpdated Feb 2003

Thrustmaster of Texas, Inc. manufactures hydraulic and mechanical marine propulsion units. We have also developed a Portable Dynamic Positioning System (PDPS).

Tognum AG

Friedrichshafen,, GermanyUpdated Mar 2008

Tognum AG is a German company specializing in the development and production of engines and propulsion systems, primarily for marine and industrial applications.