KISO-Jiban Consultants Co., Ltd.

KISO-Jiban Consultants Co., Ltd. is a Japanese geotechnical consulting firm headquartered in Kōtō City, Tokyo. It describes itself as "a world-leading geotechnical consulting firm" and positions its work around the theme of "Grounded in Experience, Shaping a Safer, More Resilient Future." The company's core business is the investigation, testing, analysis and engineering of ground and subsurface conditions for construction and infrastructure projects. The firm's service and technology portfolio includes in-situ testing and logging, with high-resolution borehole imaging and logging to reveal ground conditions in real time; GP (Gel-Push) sampling, a technology for recovering high-quality undisturbed samples from challenging ground; special laboratory testing to determine precise soil and rock properties; 3D modelling and analyses that integrate geological data with advanced finite element methods; and integrated surveys and engineering support for offshore wind farm projects from planning through operation. KISO-Jiban serves a wide range of sectors, including buildings, mass rapid transit (MRT), roads, plants, airports, ports, reclamation, bridges, tunnels, caverns, dams, environment and water, research and development, landslide and earthquake engineering. Its project experience spans Japan and international markets including Singapore, Malaysia, Indonesia, Saudi Arabia, the Americas and Europe. Notable projects listed by the company include the Pulau Tekong Polder Reclamation Project and Changi Airport Terminal 5 in Singapore, DUO Residences, the C930 Ubi Station and Tunnels (Downtown Line 3B), the T226 Marina Bay Station and Tunnels (Thomson-East Coast Line), the MPA Tuas Finger 1 for the Mega Port, consultancy works for MRT, a nationwide geological survey in Singapore, and K.L. International Airport 2 in Malaysia. The company maintains a Singapore branch, whose 50th anniversary was marked in 2024. It has a stated company motto emphasizing technological development, personnel development, fair evaluation of employees, market development for advanced technologies, and a strong and stable business base. Corporate governance and internal control are implemented based on this business philosophy, covering control environment, risk evaluation and response, internal control activities, information and communication, monitoring, and IT governance. Leadership has changed in recent years: Dr. Hideo Nomura was appointed the new president of Kiso-Jiban in 2024. The firm also engages in industry and strategic partnerships, including a 2026 MOU with Seisgadget and XOCEAN to form a strategic alliance, and it received the BCA Design and Engineering Safety Award in 2025. Ms. Michelle Lew was elected as a new president of GeoSS in 2026.

KISO-Jiban Consultants Co., Ltd. is a Japanese geotechnical consulting firm based in Kōtō City, Tokyo. The company presents its corporate history as one of "supporting Japan's economy from the ground up," reflecting a long-standing role in ground investigation and geotechnical engineering for the country's infrastructure. A significant milestone in the firm's international expansion was the establishment of its Singapore branch, whose 50th anniversary was marked in 2024. This places the branch's founding around 1974. The Singapore branch has since been involved in major projects in the city-state, including mass rapid transit (MRT) works, airport expansion, reclamation and port development. Over the decades, KISO-Jiban has built a portfolio of landmark projects spanning multiple sectors and countries. Its experience page organizes projects by decade from before 1980 through the 2030s, and by country including Singapore, Malaysia, Indonesia, Saudi Arabia, the Americas, Europe and Japan. Sectors covered include buildings, MRT, roads, plants, airports, ports, reclamation, bridges, tunnels, caverns, dams, environment and water, research and development, landslides and earthquakes. Notable projects include the Pulau Tekong Polder Reclamation Project (2010s–2020s, Singapore), Changi Airport Terminal 5 (2020s, Singapore), DUO Residences (2010s, Singapore), C930 Ubi Station and Tunnels for Downtown Line 3B (2010s, Singapore), T226 Marina Bay Station and Tunnels for the Thomson-East Coast Line (2010s–2020s, Singapore), MPA Tuas Finger 1 for the Mega Port (2010s–2020s, Singapore), consultancy works for MRT (2010s, Singapore), a nationwide geological survey (2010s, Singapore), and K.L. International Airport 2 (2010s, Malaysia). In recent years the company has continued to evolve its leadership and partnerships. On 18 December 2024, Dr. Hideo Nomura was appointed the new president of Kiso-Jiban. In 2025, the firm received the BCA Design and Engineering Safety Award. On 1 January 2026, Ms. Michelle Lew was elected as a new president of GeoSS. On 24 September 2026, Kiso-Jiban Consultants, Seisgadget and XOCEAN signed a memorandum of understanding to form a strategic alliance, signaling a continued push into offshore and marine geotechnical services, including offshore wind farm support. The company's motto emphasizes developing technologies and personnel "worthy of high regard and high reward," providing services sincerely with high technological capability and proper judgment, respecting individual employees, evaluating efforts and performance fairly, developing markets for novel and advanced technologies, and building a strong and stable business base with the capital strength required for technological development. Corporate governance and internal control are implemented based on this philosophy, with systems covering the control environment, risk evaluation and response, internal control activities, information and communication, monitoring, and IT governance.

• 2026

  Ms. Michelle Lew elected as a new president of GeoSS on 1 January.

• 2026

  Kiso-Jiban Consultants, Seisgadget and XOCEAN signed an MOU to form a strategic alliance on 24 September.

• 2025

  Received the BCA Design and Engineering Safety Award on 4 September.

• 2024

  Dr. Hideo Nomura appointed new president of Kiso-Jiban on 18 December.

• 2024

  50th anniversary of the establishment of the Singapore branch marked on 20 August.

• 1974

  Singapore branch established (50th anniversary marked in 2024).

World-leading geotechnical consulting firm grounded in experience, shaping a safer, more resilient future.

• In-situ Test & Logging

  High-resolution borehole imaging and logging reveal ground conditions in real time.

• GP Sampling

  Gel-Push technology recovers high-quality undisturbed samples from challenging ground.

• Special Laboratory Test

  Advanced laboratory testing reveals the precise properties of soil and rock.

• 3D Modelling & Analyses

  Integrated geological data and advanced FEM turn subsurface complexity into clear decisions.

• Offshore Wind Farm

  Integrated surveys and engineering support offshore wind projects from planning to operation.

1. 1A World-leading Geotechnical Consulting Firm | Kiso-Jiban Consultants Co., Ltd.kisojiban.com
2. 2Corporate | Kiso-Jiban Consultants Co., Ltd.kisojiban.com
3. 3Experience | Kiso-Jiban Consultants Co., Ltd.kisojiban.com
4. 4Company Motto and Governance | Kiso-Jiban Consultants Co., Ltd.kisojiban.com
5. 5KISO-Jiban Consultants Co., Ltd. (Japan) - Wikidatawikidata.org