Regular member (16 companies)
Alphabetical order, As of April 2020
- AERO ASAHI CORPORATION
- Azusa Sekkei Co., Ltd.
- CHODAI CO., LTD.
- ECOH CORPORATION
- Fisheries Engineering Co.,Ltd.
- Japan Airport Consultants, Inc.
- Japan International Consultants for Transportation Co., Ltd. (JIC)
- Japan Marine Science Inc.
- Japan Port Consultants, Ltd. (JPC)
- Japan Weather Association
- NIPPON KOEI CO., LTD.
- Oriental Consultants Global Co., Ltd.
- Pacific Consultants Co., Ltd.
- PADECO Co., Ltd.
- Shipbuilding Research Centre of Japan
- THE JAPAN ELECTRICAL CONSULTING CO., LTD.
- The Overseas Coastal Area Development Institute of Japan(OCDI)
- TONICHI ENGINEERING CONSULTANTS,INC.
Supporting member (26 companies)
Alphabetical order, As of June 2020
- Air Traffic Control Association
- ALL NIPPON AIRWAYS CO., LTD.
- ALMEC CORPORATION
- JALUX Inc.
- Japan Aids to Navigation Association
- Japan Airport Terminal Co., Ltd.
- JAPAN COAST GUARD FOUNDATION
- Japan International Freight Forwarders Association Inc.
- Japan Radio Air Navigation Systems Association (JRANSA)
- JAPAN RAILWAY TECHNICAL SERVICE (JARTS)
- Japan Transport & Tourism Research Institute (JTTRI)
- Japan Marine Science Inc.
- Malacca Strait Council
- Marubeni Corporation
- MES TOKKI & Engineering Co., Ltd.
- NARITA INTERNATIONAL AIRPORT CORPORATION
- NIPPON KAIJI KYOKAI (ClassNK)
- PENTA-OCEAN CONSTRUCTION CO., LTD.
- SHIBATA INDUSTRIAL CO.,LTD.
- SUMITOMO CORPORATION
- Taiyo Kogyo Corporation
- TOA CORPORATION
- TOYO CONSTRUCTION CO., LTD.
- Toyota Tsusho Corporation
- WAKACHIKU CONSTRUCTION Co., Ltd.
- Zeniya Ocean Service Engineering, Ltd.
