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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 (33) |
| ALMEC Corporation |
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Kyowa Engineering Consultants Co.,Ltd. |
| Central Consultant Inc. |
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Mitsui Consultants Co.,Ltd. |
| Chodai Co.,Ltd. |
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Mitsubishi Research Institute,Inc. |
| Chuo Fukken Consultants Co.,Ltd. |
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Newjec Inc. |
| CTI Engineering Co.,Ltd. |
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Nihon Suido Consultants Co.,Ltd. |
| CTI Engineering International Co.,Ltd. |
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Nihon Suiko Sekkei Co.,Ltd. |
| Fukken Co.,Ltd. |
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Nippon Engineering Consultants Co.,Ltd. |
| IDEA Consultants, Inc. |
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Nippon Koei Co.,Ltd. |
| ingerosec corporation |
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NJS Consultants Co.,Ltd. |
| Japan Bridge & Structure Institute, Inc. |
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Oriental Consultants Co.,Ltd. |
| Japan Engineering Consultants Co.,Ltd. |
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OYO Corporation |
| Katahira & Engineers International |
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PADECO Co.,Ltd. |
| Kawasaki Geological Engineering Co.,Ltd. |
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Public Planning & Policy Studies, Inc. |
| Kindai-Sekkei Consultant, Inc. |
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Toko Engineering Consultants Co.,Ltd. |
| Kiso-Jiban Consultants Co.,Ltd. |
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Tokyo Electric Power Services Co.,Ltd. |
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Tokyo Engineering Consultants Co.,Ltd. |
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Tokyo Kensetsu Consultant Co.,Ltd. |
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Yachiyo Engineering Co.,Ltd. |
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| Surveying Firms (4) |
| Aero Asahi Corporation |
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Kokusai Kogyo Co.,Ltd. |
| Asia Air Survey Co., Ltd. |
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PASCO Corporation |
| Associated Members (49) |
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Metropolitan Expressway Co., Ltd. |
| Central Nippon Expressway Co.,Ltd. |
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Mitsubishi Corporation |
| Dai Nippon Construction |
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Miyaji Iron Works Co.,Ltd. |
| Daiho Corporation |
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Nichia Steel Works.,LTD |
| East Nippon Expressway Company Limited |
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NICHIREKI Co.,Ltd. |
| Fujita Corporation |
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Nippo Corporation.,Ltd. |
| Hanshin Travel Service Co.,Ltd. |
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Nippon Steel Engineering Co.,Ltd. |
| HANSHIN EXPRESSWAY Co.,Ltd. |
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Nishimatsu Construction Co.,Ltd. |
| Hazama Corporation |
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NISSAKU CO.,LTD. |
| HEXAFOUR CO.,LTD. |
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Obayashi Corporation |
| Hitachi Construction Machinery Co.,Ltd. |
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ORIENTAL SHIRAISHI Corporation |
| Hitachi Plant Technologies.,Ltd. |
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Penta-Ocean Construction Co.,Ltd. |
| Honshu-Shikoku Bridge Expressway Company Limited |
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SAKAI HEAVY INDUSTRIES, LTD |
| IHI CORPORATION |
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Shimizu Corporation |
| Itochu Corporation |
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Sumitomo Mitsui Construction Co.,Ltd. |
| JFE Engineering Corporation |
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Taisei Corporation |
| Kajima Corporation |
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Takuwa Corporation |
| Kawaguchi Metal Industries CO.,LTD. |
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The Louis Berger Group Inc. |
| Koiwa kanaami Co.,Ltd. |
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THE NIPPON ROAD.,LTD. |
| Komatsu Ltd. |
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Tobishima Corporation |
| Konoike Construction Co.,Ltd. |
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TODA CORPORATION |
| KUBOTA Corporation |
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TOYO CONSTRUCTION CO.,LTD. |
| Kumagai Gumi Co.,Ltd. |
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Yokogawa Bridge Corp. |
| Maeda Corporation |
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West Nippon Expressway Co.,Ltd. |
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| Maruma Technica Co.,Ltd. |
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