Outline of IDI  Tecnical Reports  Publications  IDI Quarterly  Link  IDI Members
     IDI Members


The members of IDI mainly consisting of civil engineering consultants.
The members each offer a wide variety of researches and consulting services for infrastructure development programs and have a broad experience in international operations.


Consurting Firms (30)
ALMEC Corporation Mitsubishi Research Institute,Inc.
Central Consultant Inc. Newjec Inc.
Chodai Co.,Ltd. Nihon Suido Consultants Co.,Ltd.
Construction Engineering Consultants Co., Ltd Nihon Suiko Sekkei Co.,Ltd.
CTI Engineering Co.,Ltd. Nippon Engineering Consultants Co.,Ltd.
CTI Engineering International Co.,Ltd. Nippon Koei Co.,Ltd.
Eight-Japan Engineering Consultants Inc. NJS Consultants Co.,Ltd.
Fukken Co.,Ltd. Oriental Consultants Co.,Ltd.
IDEA Consultants, Inc. OYO Corporation
ingerosec corporation PADECO Co.,Ltd.
Japan Bridge & Structure Institute, Inc. Public Planning & Policy Studies, Inc.
Katahira & Engineers International Tokyo Electric Power Services Co.,Ltd.
Kawasaki Geological Engineering Co.,Ltd. Tokyo Engineering Consultants Co.,Ltd.
Kindai-Sekkei Consultant, Inc. Tokyo Kensetsu Consultant Co.,Ltd.
Mitsui Consultants Co.,Ltd. Yachiyo Engineering Co.,Ltd.
Surveying Firms (4)
Aero Asahi Corporation Kokusai Kogyo Co.,Ltd.
Asia Air Survey Co., Ltd. PASCO Corporation


Associated Members (38)
Central Nippon Expressway Co.,Ltd. Miyaji Iron Works Co.,Ltd.
Dai Nippon Construction NICHIREKI Co.,Ltd.
Daiho Corporation Nippo Corporation.,Ltd.
East Nippon Expressway Company Limited Nippon Steel Engineering Co.,Ltd.
HANKYU HANSHIN BUSINESS TRAVEL CO.,LTD Nishimatsu Construction Co.,Ltd.
HANSHIN EXPRESSWAY Co.,Ltd. Obayashi Corporation
Hazama Corporation Penta-Ocean Construction Co.,Ltd.
Honshu-Shikoku Bridge Expressway Company Limited SAKAI HEAVY INDUSTRIES, LTD
IHI Infrastructure Systems Co.,Ltd. Shimizu Corporation
Itochu Corporation Sumitomo Mitsui Construction Co.,Ltd.
JFE Engineering Corporation Taisei Corporation
Kajima Corporation Takuwa Corporation
Kawakin Core-Tech Co.,Ltd. The Louis Berger Group Inc.
Konoike Construction Co.,Ltd. THE NIPPON ROAD.,LTD.
KUBOTA Corporation Tobishima Corporation
Kumagai Gumi Co.,Ltd. TODA CORPORATION
Maeda Corporation TOYO CONSTRUCTION CO.,LTD.
Maruma Technica Co.,Ltd. Yokogawa Bridge Corp.
Metropolitan Expressway Co., Ltd. West Nippon Expressway Co.,Ltd.