（株）竹中土木

What （株）竹中土木 does

株式会社 竹中土木 (Takenaka Civil Engineering & Construction Co., Ltd.) is a Japan-based civil engineering construction firm and a wholly-owned subsidiary of the Takenaka Group, a conglomerate with roots tracing to 1610. The company specializes exclusively in civil engineering — dams, railways (including Shinkansen), expressways, tunnels, bridges, environmental and water systems, land development, ports and rivers, and energy/airport infrastructure — and operates as a focused alternative to the building-construction side of its parent. Its service portfolio spans the full project lifecycle: investigation, planning, design, construction, and after-service, executed through seven regional branch offices (Sapporo, Sendai, Tokyo Main, Nagoya, Osaka Main, Hiroshima, Fukuoka) and an extensive subcontractor partner network (Chikurui-kai).

The firm's technology stack blends traditional civil engineering expertise with a growing R&D and ICT layer. Proprietary, award-winning technologies include the Onsoku Bio heated in-situ soil purification method (Prime Minister's Award at the 10th Monozukuri Japan Awards), a four-technology PFAS contamination one-stop service, a haptic-feedback remote rock classification system (C-Xross 2025 attention technology award), construction Stewart Platform robots for bridge seismic reinforcement, automatic RI soil density/moisture measurement robots, and deployment of Boston Dynamics' Spot quadruped for site patrol. The firm holds DX Certification and SBT (Science Based Targets) certification, and operates a dedicated ICT Promotion Group and a March 2026-reorganized standalone Technology Headquarters.

Revenue is generated primarily through project-based contracts awarded via competitive public procurement (MLIT and regional government agencies, public corporations) and direct negotiation with private clients (JR West, NEXCO East, Keihan, Panasonic Homes, Cosmo Engineering, among others). International projects — most notably the Manila Metro Subway CP101 (first subway in the Philippines) and bridge work in Kyrgyzstan — add an overseas growth vector. Pricing follows public procurement guidelines for government work and direct quotation for private projects; specific contract values are not publicly disclosed. The firm pursues enterprise field sales through dedicated sales departments and regional branches, with marketing via corporate website, X, YouTube, recruitment site, and industry events.

Name

（株）竹中土木

Legal name

TAKENAKA CIVIL ENGINEERING & CONSTRUCTION CO.,LTD. (株式会社 竹中土木)

Website

https://takenaka-doboku.co.jp

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

株式会社 竹中土木 is a Japan-based civil engineering construction specialist and Takenaka Group subsidiary. It delivers dams, railways, tunnels, bridges, environmental remediation, and infrastructure projects for government and enterprise clients, with growing ICT and robotics capabilities.

Ownership category

akta.pro rank

Product category

Civil Engineering Construction Services

NAICS

Heavy and Civil Engineering Construction (237), Highway, Street, and Bridge Construction (237310), Water and Sewer Line and Related Structures Construction (237110)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600)

akta.pro primary industry

Interchanges, Ramps & Flyovers Construction (IMAFAEAD)

akta.pro secondary industries

Tunnels & Underground Rail Civil Construction (IMAFAFAE), Storage & Conveyance Structures (Reservoirs, Tanks, Culverts, Tunnels) (IMAFAGAE), Stormwater & Drainage Infrastructure Construction (Sewer, Detention, Outfalls) (IMAFAGAF), Roadway Drainage & Stormwater Works (Culverts, Ditches, Catch Basins) (IMAFAEAG)

Keywords

• Civil engineering construction
• Infrastructure construction services
• Tunnel and bridge construction
• Soil remediation services
• Environmental remediation solutions

Headquarters

HQ city

Tokyo (Koto City)

HQ country

Japan

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Civil Engineering Construction Projects: The company generates revenue primarily through civil engineering construction projects including public works (dams, railways, highways, tunnels, bridges) and private sector projects (land development, commercial facilities). Revenue is project-based, one-time contracts with government agencies and private clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Takenaka Civil Engineering & Construction is a specialist civil engineering contractor delivering construction projects for public infrastructure (dams, railways, expressways, tunnels, bridges), environmental/water systems, ports and rivers, energy/airport facilities, land development, and overseas projects. The company also provides specialized environmental remediation services, including PFAS contamination investigation-to-removal one-stop solutions and soil pollution total solutions, supported by proprietary construction technologies, robotics, and ICT-enabled construction methods.

Product overview

株式会社 竹中土木 is a civil engineering specialized construction company (土木 Casado) that operates as a subsidiary of the Takenaka Group. The company offers a unified portfolio of civil engineering construction services organized around core offerings: (1) 土木建設サービス - general civil engineering construction for social infrastructure including dams, railways, roads/tunnels/bridges, environmental systems, land development, ports/rivers, and energy facilities; (2) 技術・工法サービス - specialized technical methods and engineering solutions including soil contamination remediation; (3) DX推進戦略 - digital transformation strategy integrating digital technologies with traditional civil engineering expertise; and (4) ICT建機ソリューション - ICT-enabled construction equipment and robotics for productivity improvement. The company positions its civil engineering deliverables as '作品' (works) reflecting its quality commitment.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Engineering Construction Services

Quantifiable outcome

• Successful completion of Hokuriku Shinkansen Kanazawa-Tsuruga extension (125km) with 6 construction sections
• +2 more outcomes

Named customers9 records

Segments2 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Four partnerships are on record, tiered minor and core.

• TEAM UKYO (右京総合内科)minorStrategic or Co-development Partner · 28 March 2024Sports sponsorship partnership with professional cycling team TEAM UKYO. The partnership supports cycling events including Tour of Japan, Tour de Kumano, and international races. The team achieved 4 consecutive overall championships in Tour of Japan 2025.
• リバスタ (Ribasta)coreTechnology or IntegrationPartnership for Buildee construction management platform that automates work coordination, labor safety documents, and entry/exit management. The platform is provided free to partner companies and helps improve construction site productivity and work style reform.
• 株式会社人機一体minorStrategic or Co-development PartnerInvestment in robotics company specializing in advanced robot development with unique technologies. Collaboration on construction robot development including remote control systems.
• 立命館大学発ベンチャー (人機一体 related)minorStrategic or Co-development PartnerCollaboration with university-affiliated venture company for construction robot development. Featured on Kansai TV program 'Yo-I Don' for joint robot development.

Scale indicators5 records

Recent moves11 records

Expansion highlights6 records

Broad incumbents

• Kajima Corporation: Japan's largest construction group with deep civil engineering capabilities in expressways, railways, and environmental remediation. A direct competitor on flagship public works and increasingly in DX/robotics deployment on sites.
• Obayashi Corporation: Major Japanese general contractor with significant civil engineering work across tunnels, bridges, dams, and overseas infrastructure. Comparable on bid pipelines for MLIT and overseas metro/subway packages.
• Takenaka Corporation: Parent general contractor of Takenaka Group and Japan's largest building-focused construction firm. While Takenaka Civil is the civil-only specialist subsidiary, Takenaka Corp itself competes in adjacent civil and PPP infrastructure markets and is the reference point for group capabilities.
• Taisei Corporation: Major Japanese general contractor with a large civil engineering division covering dams, tunnels, bridges, and environmental projects. Competes on the same public infrastructure tenders and has comparable ICT construction initiatives.
• Shimizu Corporation: One of Japan's largest super-zenecon general contractors with major civil engineering operations across tunnels, railways, and environmental works. Directly comparable on large-scale public infrastructure tenders (Shinkansen, expressways) where it competes head-to-head with Takenaka Civil.

Direct peers

• Maeda Corporation: Japanese construction firm with significant civil engineering heritage in dams, tunnels, expressways, and hydropower. Comparable mid-sized peer competing for similar public infrastructure contracts.
• Nishimatsu Construction Co., Ltd. Mid-size Japanese contractor historically focused on civil engineering works (tunnels, bridges, dams, hydroelectric) with strong specialty positioning similar to Takenaka Civil. Closest direct competitor in the mid-sized civil specialist segment.
• Toda Corporation: Japanese construction firm with a strong legacy in civil engineering works including railways, expressways, and environmental projects. Comparable peer profile with similar mix of public infrastructure and private land development.
• Hazama Ando Corporation: Mid-size Japanese construction firm with substantial civil engineering operations in tunnels, railways, and environmental remediation. Direct peer in mid-sized civil contracting space with comparable customer mix.
• Penta-Ocean Construction Co., Ltd. Japanese civil engineering specialist with leading positions in ports, marine works, reclamation, and overseas projects. Comparable on overseas infrastructure execution (especially Southeast Asia) and on civil-only positioning.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/TAKENAKA_DOBOKU
• YouTubeyoutube.com/channel/UCadTrGBMNdA6HDWeyK8S3EA
• LinkedInlinkedin.com/company/%EF%BC%88%E6%A0%AA%EF%BC%89%E7%AB%B9%E4%B8%AD%E5%9C%9F%E6%9C%A8

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about （株）竹中土木