Naval & fast-craft engines
Isotta Fraschini Motori
Bari-based Fincantieri subsidiary building high-speed diesel engines for naval, fast craft and onboard power generation.
Maritime Propulsion Companies
217 companies, page 5 of 10
Filter companies
Engine designers & licensors
Japan Engine Corporation (J-ENG)
Akashi-based designer, licensor and builder of Mitsubishi UE low-speed engines, including ammonia and hydrogen dual-fuel models.
Azimuth thrusters
Jastram
Hamburg family firm making RP rudder propellers (50-450 kW), BU transverse thrusters (50-1,200 kW) and low-noise thrusters.
Rudders & steering gear
Jastram Engineering
Canadian manufacturer of hydraulic steering gear and steering systems for commercial and naval vessels (separate company from Jastram GmbH, Hamburg).
Commercial & workboat engines
John Deere Power Systems
Deere & Company engine division offering PowerTech 4.5L-13.5L marine diesels (60-559 kW) for propulsion, auxiliary and generator duty.
Molten salt reactors
KAERI (Korea Atomic Energy Research Institute)
South Korea's state nuclear research institute, developer of the MARINA marine molten salt reactor for ship propulsion with Samsung Heavy.
Marine transmissions
Kanzaki Kokyukoki
Yanmar group transmission maker in Amagasaki, Japan, producing hydraulic and cone-clutch marine gears for small boats.
Distributors & propulsion integrators
Karl Senner
Louisiana-based distributor and integrator of REINTJES gearboxes and Steerprop thrusters, with propulsion and electrical integration.
Licensee engine builders
Kawasaki Heavy Industries
Japanese heavy-industry group building B&W two-stroke engines, CPPs, Rexpeller azimuth thrusters, side thrusters and naval gas turbine packages.
Box coolers
Kelvion
Herne-based heat exchanger group (ex-GEA Heat Exchangers) with marine box coolers, plate and shell-and-tube HEX and charge air coolers.
Stern tube & shaft seals
Kemel
Japanese stern tube seal and shaft bearing maker, now an internal company of Eagle Industry Co., Ltd.
Remote propulsion control & joysticks
Kobelt Manufacturing
Canadian maker of electronic, pneumatic and push-pull propulsion controls, steering systems and brakes, founded 1962 and part of Twin Disc.
Distributors & propulsion integrators
Koedood Marine Group
Dutch Mitsubishi marine engine distributor and integrator of engines, hybrid propulsion and emission control for inland and work vessels.
Electric & hybrid system integrators
Kongsberg Maritime
Norwegian supplier of thrusters, propellers, waterjets, hybrid power, propulsion control and DP systems; former Rolls-Royce Commercial Marine.
Controllable-pitch propellers
Kumera Marine
Norwegian maker of controllable-pitch propellers and marine propulsion, hybrid and auxiliary gearboxes, part of Kumera Corporation.
Distributors & propulsion integrators
Laborde Products
US distributor and packager of Mitsubishi, Scania, Steyr and Yanmar marine engines, gensets and parts for commercial vessels.
Li-ion energy storage systems
Leclanché
Swiss lithium-ion cell and battery system maker supplying type-approved Navius marine battery racks; in financial distress in 2026.
Naval electric propulsion
Leonardo DRS
US defence electronics firm majority-owned by Leonardo, supplying naval electric propulsion motors, drives and power systems.
Leisure bow & stern thrusters
Lewmar
UK marine hardware maker (since 1946, part of LCI Industries) supplying electric, hydraulic and retractable bow and stern thrusters.
Remote propulsion control & joysticks
Lilaas
Norwegian maker of control levers, joysticks and precision mechanics used in ship bridge consoles and propulsion control systems.
LNG & ammonia fuel tanks
LNT Marine
Singapore-based gas containment technology firm offering the LNT A-BOX Type A cargo tank and Fuel-BOX prismatic fuel tanks.
Commercial & workboat engines
MAN Engines
MAN Truck & Bus engine unit in Nuremberg supplying high-speed marine diesels for yachts, workboats and tugs, from 221 to 1,618 kW.
Waterjets
Marine Jet Power
Swedish waterjet maker (founded 1986, Uppsala) with CSU, DRB, X-Series, UltraJet and PodJet ranges from 110 kW to 24 MW.
Dynamic positioning & steering control
Marine Technologies
US maker of Bridge Mate dynamic positioning, thruster control, autopilot and integrated bridge systems, plus vessel communications.