| Main engine | AKASAKA Diesels LIMITED DEISEL UNITED Mitsui E&S Machinery Hitachi Zosen Corporation Makita J-ENGINE JFE Engineering Corporation |
| Auxiliary engine | YANMAER DAIHATSU DIESEL IHI Power Systems(New) |
| Pump compressor | TAIKO KIKAI INDUSTRIES HSN-KIKAI KOGYO Sasakura Engineering Teikoku Machinery Works ISHII MACHINERY WORKS SHINKO IND KOSAKA FACTORY DAIICHI MFG TANABE COMPRESSOR Suction Gas Engine MATSUBARA IRON WORKS SAUER BAUER COMPRESSORS |
| Boiler Burner Incinerator | MITSUBISHI HEAVY INDUSTRIES MIURA TORTOISE ENGINEERING OSAKA BOILER VOLCANO SUNFLAME |
| Oil-water separator Sewage treatment unit Water purifying device Oil purifier | TAIKO KIKAI OMDUSTRIES Sasakura Engineering HSN-KIKAI KOGYO MIURA MITSUBISHI KAKOKI Alfa Laval |
| Oil hydraulic equipment Crane | MITSUBISHI HEAVY INDUSTRIES Kawasaki Heavy Industries TSUJI HEAVY NAKATA MAC CORPORATION MacGregor FUKUSHIMA MANSEI KYORITSU KIKAI MANABE IMABARI JAPAN TADANO Sekigahara Seisakusyo Japan Air Mortor |
| Valve Expansion joint | NAKAKITA SEISAKUSYO Niikura Kogyo TOMOE VALVE BF KOGYO KAISHA DAICOUP KEYSTONE VALVE SUGIMOTO VALVE INDUSTRIES Mitsumoto Valve Mfg MIURI VALVE SEWON TANKTECH |
| Blower Fan Motor | Nishishiba Engineering OSAKA BLOWER MFG TAIYO ELECTRIC Kubota Corporation ONISHI ELECTRIC INDUSTRY Mitsubishi Electric Corporation |
| Lifeboat | Shigi Shipbuilding Nishi-F QINGDAO BEHAI ORIENTAL PRECISION NOHMI BOSAI NIPPON HAKUYO electronics OKI |
| Refrigeration / Freezer Air conditioner Kitchen equipment | DAIKIN USHIO REINETSU MYCOM SABROE MITSUBOSHI CHUKI SEISAKUSYO Washio Churi Industry SANWA |
| Electrical equipment | TERASAKI ELECTRIC Uzushio Enterprise Hanshin Electric Mfg FURUNO ELECTRIC Japan Radio JRCS OMRON FUJI ELECTRIC MEIYO ELECTRIC Matsushita Electric Yokogawa Electric Corporation New Cosmos Electric |
| Others | Exeno Yamamizu Corporation THE NIPPON CORROSION ENGINEERING NIPPON CONTROL'S Yamashina Seiki KOBELCO STERN KEEPER SAGINOMIYA SANKI NAGANO KEIKI TOKIMEC(Previously known as TOKYO KEIKI) ENERGY SUPPORT Kamome Propeller Nakashima Propeller Harison Sangyo HISAKA WORKS |
