- DAIICHI CHUO KISEN KAISHA
- KAWASAKI KISEN KAISYA LTD. （“K” LINE）
- Kondou Marine Memorial Foundation
- L&J Law Office
- LISCR Japan
- Marubeni Corporation
- Mitsui O.S.K. Lines
- NAVREX & Partners
- NYK Line
- Setouchi Enterprise
- Sojitz Corporaion
- Yamagata Maritime Institute
- Yoshida & Partners
(Alphabetical order)