Group Companies

Contribute to build the Sustainable Society by utilizing the Group's comprehensive strength

The OYO Group is the group of geoscience experts in each field such as “Infrastructure maintenance management and renovation”, “Natural disaster prevention and mitigation”,
“Environment” and “Natural resources and energy”.
OYO will challenge the various issues which the world is facing by utilizing the Group`s
comprehensive strengths.

Infrastructure Maintenance, Management, and Renovation

Domestic

KCS Co., Ltd.
+81-3-6240-0581 / Bunkyo-ku, Tokyo, Japan
Road planning, traffic analysis, traffic big data analysis, public transportation planning, economic ripple effect analysis, economic loss prediction

Domestic

Tohoku Boring Co., Ltd.
+81-22-288-0321 / Sendai-shi, Miyagi, Japan
Well construction, well maintenance, design and construction of water treatment facilities, geological and soil surveys

Domestic

Ocean Engineering Corporation
+81-29-897-3151 / Tsukuba-shi, Ibaraki, Japan
Seafloor topography survey, marine environment survey, marine civil engineering construction management

Domestic

KOEI Consultant Co., Ltd.
+81-3-5840-5155 / Bunkyo-ku, Tokyo, Japan
City planning, structures design, surveying, and construction management

Domestic

Nankyu Geo Technics Corporation
+81-99-837-3330 / Kagoshimahi, Kagoshima, Japan
Geological and soil surveys, civil engineering design

Domestic

OYO Geo Technical Service Inc.
+81-3-5949-3410 / Toshima-ku, Tokyo, Japan
Soil investigation, aseismic survey, and preparation of simulated seismic waves

Domestic

OYO Resource Management Co., Ltd.
+81-3-6240-0411 / Bunkyo-ku, Tokyo, Japan
Sales and leasing of office equipment, etc. and management of real estate

Domestic

OYO Geo-Monitoring Service Corporation
+81-48-285-2133 / Kwaguchi-shi, Saitama, Japan
Rental of measuring instruments, measurement services, sales of impermeable and waterproofing materials

Overseas

Geophysical Survey Systems, Inc.
New Hampshire, U.S.A.
Development, manufacture and sale of underground radar exploration equipment

Overseas

OYO Corporation, Pacific
Guam, U.S.A.
Geological and soil surveys, civil engineering design

Overseas

Fong Consult Pte. Ltd.
Singapore
Civil engineering, construction design, and construction management

Overseas

FC Inspection Pte. Ltd.

Singapore
Inspection of infrastructure such as roads and tunnels

Natural Disaster Prevention and Mitigation

Domestic

OYO International Corporation
+81-3-5840-5155 / Bunkyo-ku, Tokyo, Japan
Overseas construction consulting (earthquake disaster prevention, groundwater development, infrastructure development, etc.)

Domestic

OYO Seismic Instrumentation Corporation
+81-48-866-1228 / Saitama-shi, Saitama, Japan
Sales of seismic observation equipment and earthquake disaster prevention consulting services

Domestic

OYO RMS Corporation
+81-3-6434-9801 / Minato-ku, Tokyo, Japan
Analysis of natural disaster risk and advisory services

Overseas

Kinemetrics, Inc.
California, U.S.A.
Development, manufacture, and sale of seismometers, and seismic observation systems

Environment

Domestic

NS Environment Corporation
+81-3-3432-5451 / Minato-ku, Tokyo, Japan
Environmental survey and measurement, environmental hygiene management, asbestos surveys, analysis and countermeasures

Natural Resources and Energy

Overseas

Geometrics, Inc.
California, U.S.A.
Development, manufacture and sale of seismographs, magnetometers and Geoelectrical instruments

Overseas

Robertson Geologging LTD.
U.K.
Development, manufacture and sale of logging equipment

Overseas

NCS SubSea, Inc.
Texas, U.S.A.
Provider of ultrahigh resolution (UHR) marine seismic surveys and specialized seismic support services

Overseas

P-Cable 3D Seismic
Texas, U.S.A.
Inventor and developer of P-Cable ultrahign resolution (UHR) marine seismic system

Others

Overseas

OYO Corporation U.S.A.

California, U.S.A.
North America Regional Headquarters

Equity method affiliates

Domestic

Engineering and Risk Services Corporation
+81-3-5786-0090 / Minato-ku, Tokyo, Japan
Building evaluation, soil environment evaluation, and disaster risk evaluation

Overseas

IRIS Instruments SAS
France
Development, manufacture and sale of electric exploration equipment