A World-leading Geotechnical Consulting Firm

State-of-the-art technology

Kiso-Jiban unlocks the secrets of soil and rock using state-of-the-art technologies, e.g. advanced in-situ tests and loggings, GP sampling and special laboratory tests. After the secrets are revealed, Kiso-Jiban can provide 3D geological models and analyses, which demonstrate comprehensive subsurface conditions and geo-risks.


Geotechnical support

Kiso-Jiban is an engineering consulting firm experienced in all phases of civil engineering project management, from economic and environmental feasibility studies, through to construction supervision, start-up and monitoring. Kiso-Jiban is especially well-known for its comprehensive capabilities in the field of geotechnical engineering, which encompasses subsurface investigation, soil and rock mechanics, engineering geology, foundation analysis and design and groundwater management.


Kiso-Jiban has served industry and government in Japan and in over 80 other countries since 1953. Kiso-Jiban has participated in over 8,000 overseas projects.


With a professional staff of over 450 engineers, geologists and scientists, Kiso-Jiban is able to staff seven main branch offices in Japan, foreign offices in Singapore, Kuala Lumpur, Jakarta, Hanoi and three independent technical centers, for Computing, Soil Mechanics and Rock Mechanics.

List of Offices

Renewable energy

Kiso-Jiban has led the offshore wind farm industry in terms of geological, geotechnical and geophysical consulting in Japan since 2010. Kiso-Jiban can support clients in all phases of offshore wind farm development, from project planning to construction.

Offshore Wind Farm