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Ministry of Land, Infrastructure and Transport Kinki Regional Development Bureau
Tokyo Metropolitan Government
Aichi Prefectural Government
Osaka Prefectural Government
Fukui Prefectural Government
Tokushima Prefectural Government
Toyohashi City Government
Nagoya City Government
Otsu City Government
Kochi City Government
Hiroshima City Government
Central Japan Railway Company
West Japan Railway Company
Metropolitan Expressway Company
Kajima Corporation
Taisei Corporation
Toda Corporation
Konoike Corporation
Kumagai Gumi
Nippo Corporation
Fujita Corporation
Nippon Koei
Nakanihon Engineering Consultants
Chuoh Consultants
TOKEN C.E.E. Consultants
Taiheiyo Cement
Daikyo Astage
Space Lab
National Institute of Technology, Akita College
Consulate General of Japan in Ho Chi Minh City