| Daihatsu Diesel Mfg. Co., Ltd.
| Diesel Engine, Gearbox, SCR |
| Mitsubishi Heavy Industries, Ltd.
| MET Turbo Charger, Steering Gear, Deck Crane, Water Jet |
| Japan Engine Corporation
| UE Engine |
| Akasaka Diesel Limited
| Diesel Engine |
| Kamome Propeller Co., Ltd.
| FP/CP Propeller, FP/CP Thruster, K7 Rudder, Gate Rudder |
| Naniwa Pump Mfg. Co., Ltd.
| Centrifugal, Screw, and gear pump |
| Sanko Engineering Co., Ltd
| Screw and hear pump, Gearbox |
| Miura Co., Ltd.
| Ballast Water Management System, G/E Exhaust Gas Heat Recovery Unit, Marine Thermal Oil Heater, Marine Composite Boiler, Marine Auxiliary Boiler, Shipboard Incinerator |
| Chongqing Gearbox Co., Ltd.
| Marine / Industrial Gearbox |
| Meiyo Electric Co., Ltd.
| Thermo Resistance Bulb, Pressure Transmitter, Thermometer, Speed Relay |
| Daikai Engineering Pte Ltd
| DRUMS Daikai Remote Ubiquitous Monitoring System |
| Utsuki Keiki Co., Ltd.
| Inclinometer, Ballast Remote Control System |
| Seakeeper
| Gyrostabilizer |
| SHOXS
| Shock Mitigating Seats |
| Kanagawa Kiki Kogyo Co.,Ltd.
| Strainers, Filters |
| Heishin Kikai Kogyo Co.,Ltd.
| Bilge Separator, Bilge Alarm unit, Electric Motor, Oil Discharge Monitoring and Control System |
| Shoyo Engineering Co., Ltd.
| Shaft Horsepower, Meter Combustion, Pressure Monitor, Power Meter |
| Jonghap Maritime Inc
| Strainers, Filters |
| Ozone UV complex system water sterilizer, Lashing belt for pure car carrier
| Strainers, Filters |
| Hitz Hitachi Zosen
| Marine Growth Prevention System |
| Daikin MR Engineering Co., Ltd.
| Marine Air Conditioning System |
| BRB Cable
| Sales of electrical cables for marine and industrial |
| Nippon Yuka Kogyo Co.,Ltd.
| Sales of MGPS for small vessels, FO/LO/CW additives for marine and chemicals |
| Harwood Marine
| Marine Vessel builder, Shipping & Repair, Project Management & Naval Architect, Winged Air Induction Pipe System, Facilities in Australia and Philippines |
| NBS Corporation
| Special valve maintenance service for LNG carrier |
