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62 companies

AMW-Marine

Hendrik Ido Ambacht, NetherlandsUpdated Nov 2007

AMW-Marine specializes in sustainable maritime propulsion systems and drive mechanisms, offering products such as electric drives, gearboxes, NOx reduction systems, ship propellers, waterjets, and hybrid propulsion solutions for various vessel types including dredgers, inland vessels, offshore, military, and autonomous ships.

Allen Marine, Inc.

Sitka,, AK, United StatesUpdated Dec 2006

Allen Marine, Inc builds high speed aluminum passenger catamarans from 65 to 105 feet.

Ata Gears Ltd

FinlandUpdated May 2002

Ata Gears Ltd is a Finnish company specializing in the manufacturing and servicing of marine gears and propulsion systems.

Atlantis Marine Gear Supply Inc

Topsfield,, MA, United StatesUpdated Nov 2002

Atlantis Marine Gear Supply Inc is a supplier of jet propulsion systems and marine transmissions based in Topsfield, United States.

Bird-Johnson Company

Walpole,, MA, United StatesUpdated Sep 2002

Bird-Johnson Company, part of Rolls-Royce, specializes in the design and manufacture of naval propellers and naval propulsion systems for the US Navy and international navies.

CASTOLDI S.p.A.

Albairate,, Milano, ItalyUpdated Apr 2006

Castoldi S.p.A. is an Italian company specializing in water jet propulsion systems and jet tenders, including SOLAS rescue and superyacht tenders.

Caterpillar Inc.

Mossville,, IL, United StatesUpdated Jan 2005

Caterpillar Inc. is a global leader in manufacturing diesel engines, propulsion systems, and generating sets for the marine power market.

ENAG SA

Quimper, Finistère, FranceUpdated Jul 2002

ENAG manufacture an extensive range of standard and customised electronic and electro-mechanical products specifically adapted to the marine sector.

Five Star Products Inc.

Fairfield, CT, United StatesUpdated Jul 2001

Manufacturer of epoxy chocks and precision grouts for marine engines, propulsion systems, and concrete repair in marine and industrial applications.

Frank W. Murphy (UK) Ltd.

Salisbury, United KingdomUpdated May 2026

FWMurphy manufacture control and instrumentation systems for engine driven equipment: generators, pumps, marine propulsion systems and off-road equipment.

Garlock of Canada Ltd.

Halifax, NS, CanadaUpdated Jan 2002
Training

Fairbanks Morse Defense provides advanced engineering, manufacturing, and support solutions for maritime defense and industrial markets, specializing in mission-critical marine and power solutions.

General Electric Co. GE Drive Sys.

Salem, VA, United StatesUpdated May 2026

GE Drive Systems division of General Electric, a global industrial supplier providing electric drive power and propulsion systems for marine, rail, mining, and stationary power industries, including naval vessels and U.S. Maritime Administration ships.

General Electric Co. Marine & IndOl Eng. Div.

Cincinnati, OH, United StatesUpdated Nov 1998

Former Marine & Industrial Engine Division of General Electric in Cincinnati, supplying medium-speed diesel engines and propulsion systems for marine, rail, mining, stationary power, and drilling applications. Operations were folded into GE Transportation, which merged with Wabtec in 2019.

Gertsen & Olufsen A/S

Horsholm,, DenmarkUpdated Apr 2007

Gertsen & Olufsen A/S specializes in advanced maritime sub-systems for water & waste management, tank management, propulsion, and service management, supporting shipowners, shipyards, and ship designers worldwide with innovative solutions for the green transition.

Great Lakes Power Products

Pittsburgh, PA, United StatesUpdated May 2026

Great Lakes Power Products is a leading provider of OEM products, rebuilt units, parts, service and engineering expertise for power transmission solutions in the marine and industrial off-highway markets, including commercial, pleasure, and governmental vessels.

Hamilton Jet Inc.(US)

Seattle,, WA, United StatesUpdated Jun 2006
Training

HamiltonJet Inc. is a leading provider of advanced waterjet propulsion systems and vessel autonomy solutions, serving sectors including search & rescue, fireboats, military patrol, fast ferries, pilot boats, wind farms, recreation, and fishing vessels.

Harbormaster Marine, Inc.

Livonia,, MI, United StatesUpdated Apr 2005

Harbormaster Marine, Inc. is a US manufacturer of heavy-duty outboard drive marine propulsion systems and tunnel (bow) thrusters, known for durable, high-quality marine parts and worldwide service support.

Heimdal Propulsion AS

United StatesUpdated May 2002

Heimdal Propulsion AS provides reliable maritime propulsion solutions, including customized propulsion systems, marine and industrial generators, and hydraulic components, with over 100 years of expertise.

Helseth AS

Hjelset,, NorwayUpdated Apr 2011

Helseth AS is a specialized propeller manufacturer in Norway, producing durable propulsion systems for various professional vessels including cargo, passenger, ferry, tanker, work, high-speed, fishing, and offshore vessels.

Karl Senner Inc.

New Orleans, LA, United StatesUpdated Oct 2003

Karl Senner, LLC is a leading distributor of marine gearboxes, propulsion systems, and spare parts, offering 24/7 nationwide service and expertise in propulsion integration and electrical integration.

Kort Propulsion

Kent,, United KingdomUpdated Aug 2006

Supplier of quality marine propulsion packages including Kort nozzles, propellers, thrusters, and customized propulsion systems with over 90 years of experience.

MAAG Gear AG

Winterthur,, SwitzerlandUpdated Feb 2006

MAAG Gear AG is a global manufacturer of high power gear transmissions for marine propulsion systems, as well as gear units for cement, compressor drives, power generation, and pumps.

MAN PrimeServ Diesel (USA East)

Pompano Beach, FL, United StatesUpdated Sep 2017

MAN Diesel & Turbo SE, based in Augsburg, Germany, is the world’s leading provider of large-bore diesel engines and turbomachinery for marine and stationary applications

Machine Works at Essex

New London,, Ct., United StatesUpdated Nov 2002

Machine Works at Essex specializes in the repair and maintenance of bow thrusters, propellers, propulsion systems, shaft components, and surface drives for maritime vessels.