Eight-Japan Engineering Consultants

What Eight-Japan Engineering Consultants does

Eight-Japan Engineering Consultants Inc. (EJEC) is a comprehensive construction engineering consultancy headquartered in Okayama, Japan, with a secondary headquarters in Tokyo and a regional subsidiary in Bangkok, Thailand. The firm was formed in 2009 through the merger of Eight Consultants Co., Ltd. (tracing back to 1955) and Japan Engineering Consultants Co., Ltd. (1954), and operates as a wholly-owned subsidiary of E·J Holdings Inc., a holding company listed on the Tokyo Stock Exchange Prime Market. With 1,131 employees — 935 of whom are technical staff including 448 Professional Engineers, 93 general technical supervisors, and 241 RCCM-certified personnel — EJEC delivers study, planning, design, survey, and construction supervision services across nine service domains: transportation and road infrastructure, bridges, water management, urban planning, disaster prevention, environment and energy, geological disaster prevention, surveying and compensation, and international consulting.

The company's underlying technology stack combines traditional civil engineering expertise with ICT, IoT, AI, BIM/CIM, and advanced 3D measurement systems including UAV laser scanning, autonomous underwater vehicles (AUV/ASV), and satellite SAR data processing. R&D is anchored by the EJ Innovation Technology Center (EJIT Center, reorganized in 2021), FUNNOVATE LAB innovation lab, and i-Construction/BIM-CIM service line. EJEC holds at least ten patents covering tunnel lighting control, underground passage safety, structure repair planning, and disaster occurrence probability evaluation systems. The firm holds ISO9001, ISO14001, ISO55001, and ISO27001 certifications, a METI DX Certified Operator designation (2024), and a National Resilience Certification (since 2016).

EJEC earns revenue almost exclusively through professional services fees derived from public tenders awarded by Japanese central government ministries (notably MLIT and its regional bureaus), prefectural and municipal governments, and international development programs channeled through JICA and bilateral ODA frameworks. International project delivery spans 15+ countries including Thailand, Myanmar, Vietnam, Pakistan, Tajikistan, Sierra Leone, Cameroon, Malawi, Tanzania, Ethiopia, Kenya, Turkey, and Bangladesh, with work concentrated on water supply, transportation, waste management, and disaster prevention in developing economies. Pricing is project-based and negotiated through competitive public bidding; no retail or commercial-channel revenue model exists.

Name

Eight-Japan Engineering Consultants

Legal name

株式会社エイト日本技術開発

Website

https://ejec.ej-hds.co.jp

Company type

Private

Founded year

1955

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Eight-Japan Engineering Consultants (EJEC) is a Japanese comprehensive construction engineering consultancy with 1,131 employees, serving central and local government clients and JICA international development programs across nine infrastructure service domains including transportation, bridges, water management, disaster prevention, and urban planning.

Ownership category

akta.pro rank

Product category

Construction Engineering Consulting

NAICS

Engineering Services (54133), Architectural, Engineering, and Related Services (5413), Environmental Consulting Services (54162), Management, Scientific, and Technical Consulting Services (5416)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Systems Engineering & Technical Program Management (BPAHAIAI)

akta.pro secondary industries

Construction Program Management (Multi-site/Portfolio) (IMAFAAAF), Design-Build / EPC General Contracting (IMAFAAAD), EIA/ESIA Documentation & Technical Studies (Air/Water/Noise/Traffic) (EUAHAAAC), Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ)

Keywords

• Construction engineering consulting
• Infrastructure consulting services
• Disaster prevention engineering
• Bridge inspection design
• International development consulting

Headquarters

HQ city

Okayama

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel

Revenue model

1. Construction Consulting Services: Study, planning, design, and work supervision for social infrastructure facilities including roads, bridges, rivers, ports, and environmental facilities. Revenue generated through consulting fees for government and public sector projects.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Eight-Japan Engineering Consultants (EJEC) is a comprehensive construction consultancy providing study, planning, design, survey, and work supervision services for social infrastructure facilities. Its portfolio spans nine service domains: transportation/road infrastructure, bridges, water management (rivers, ports, coasts), urban planning, disaster prevention and mitigation, environment and energy, geological disaster prevention, surveying and compensation, and international consulting. The firm supports both Japanese government clients and international development projects delivered through JICA and bilateral aid programs.

Product overview

Eight-Japan Engineering Consultants (EJEC) is a comprehensive construction consulting firm offering integrated infrastructure services across 9 core business domains. The portfolio includes Transportation & Road Infrastructure, Bridge Services, Water Management Infrastructure, Urban Planning & Design, Disaster Prevention & Mitigation, Environment & Energy, Geological Disaster Prevention, Surveying & Compensation, and International Consulting. Supporting these core services are specialized divisions: the EJ Innovation Technology Center (EJIT Center) for R&D in IoT, AI, and digital technologies; FUNNOVATE LAB for innovation; and i-Construction/BIM-CIM services for ICT-based productivity improvement. The company also provides Asset Management System (AMS) services for infrastructure value chain optimization. EJEC operates primarily in Japan with international presence through its Thailand subsidiary and projects in developing countries.

Differentiator

Problem solved

Functional benefit

Brands

• EJ Innovation Technology Center (EJIT CENTER): Technology center for disaster risk mitigation, data science, and infrastructure technology research and development
• FUNNOVATE LAB (ファノベイトラボ)
• EJIT Center

Products and services

• Transportation & Road Infrastructure Comprehensive planning, design, and construction management for roads, bridges, viaducts, tunnels, tunnel ventilation systems, urban transport facilities, road lighting, and underground structures for government and public sector clients.
• Bridge Services Bridge infrastructure maintenance services including inspection, surveys, soundness diagnosis, life extension planning, conservation planning, stock management, measurement, and conservation and repair design.
• Water Management Infrastructure Total water solutions including planning and design of rivers, sediment control, coastal/ocean/port/harbor facilities, agricultural civil engineering, tsunami simulation analysis, and comprehensive sediment control.
• Urban Planning & Design Urban/regional development planning, urban regeneration, parks and greens design, disaster-resistant town development, landscape planning, land readjustment, and environmental surveys for municipal and regional clients.
• Disaster Prevention & Mitigation Wide-ranging disaster solutions including earthquake damage estimation, earthquake-resistance planning, BCP formulation, traffic vibration control, urban flooding control measures, and disaster prevention information networks.
• Environment & Energy Waste management and recycling services including municipal solid waste management master planning, waste treatment facility design, biomass utilization, and final disposal site management.
• Geological Disaster Prevention Geological surveys, soil and groundwater surveys, landslide monitoring, sediment disaster prevention, slope stabilization, and numerical analysis for ground deformation.
• Surveying & Compensation

Quantifiable outcome

• 296 boreholes constructed in Malawi, improving water supply ratio from 39% to 49% and benefiting approximately 132,000 people
• +2 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability8 records

Feature7 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Mind Foundry (UK)coreTechnology or Integration · 14 March 2024Strategic Alliance Agreement signed in March 2024 for AI and data science technology collaboration in infrastructure and disaster prevention solutions.
• E・J Holdings Inc. (E・Jホールディングス株式会社)coreStrategic or Co-development PartnerParent company listed on Tokyo Stock Exchange Prime Market. EJEC is a subsidiary within the E・J Group, which includes multiple engineering consulting and infrastructure companies.
• JICA (Japan International Cooperation Agency)coreStrategic or Co-development PartnerPrimary partner for international development consulting projects. EJEC participates in JICA technical cooperation, grant aid, and ODA loan programs for infrastructure development in developing countries including Thailand, Vietnam, Pakistan, Tajikistan, Kenya, and others.
• Dynamic Engineering Consultants Inc. (Thailand)coreStrategic or Co-development PartnerThai engineering consulting firm that visited EJEC headquarters in 2026. Active collaboration in international consulting projects in Southeast Asia.
• Liquitous Inc. (株式会社Liquitous)minorStrategic or Co-development PartnerBusiness partnership for citizen participation and consensus-building support in urban planning using Liqlid platform. Joint efforts in local government projects.
• Asian Institute of Technology (AIT)minorStrategic or Co-development PartnerTechnical seminars and knowledge exchange programs. EJEC hosted sessions at AIT in Thailand and invited AIT professors for technology seminars in Japan.
• Mind FoundrycoreTechnology or IntegrationUK-based AI company with strategic alliance for AI technology development in infrastructure maintenance and disaster prevention.

Scale indicators7 records

Recent moves7 records

Direct peers

• CTI Engineering Co., Ltd. Japanese comprehensive construction consultant providing planning, design, and construction management for roads, bridges, rivers, ports, urban planning, and environment. Direct competitor in the same Japanese public works tendering market and similar service portfolio.
• NEWJEC Inc. (Nihon Suido Konsultants): Japanese comprehensive construction consultancy with water/sewerage, river, road, and environmental expertise. Comparable in size and service mix, competing in the same government tender market with overlapping capabilities in water management infrastructure.
• Oriental Consultants Co., Ltd. Tokyo-headquartered engineering consultancy providing infrastructure planning, design, and project management with strong international development focus through JICA. Overlapping service portfolio in transportation, water, urban planning, and disaster prevention.
• Katahira & Engineers International: Japanese engineering consultancy with strong international development focus through JICA and bilateral aid programs. Direct competitor in international consulting segment, particularly in water resources, transportation, and disaster prevention in developing countries.
• Nippon Koei Co., Ltd. One of Japan's largest construction engineering consultancies, providing planning, design, and construction supervision for infrastructure projects including transportation, water, energy, and international development. Directly competes with EJEC across most of the 9 service areas and on JICA-funded international projects.
• Pacific Consultants Co., Ltd. Major Japanese engineering consultancy offering domestic infrastructure consulting and international ODA project services. Direct competitor in transportation, disaster prevention, water management, and JICA international consulting, with similar government tender channels.
• Yachiyo Engineering Co., Ltd. Japanese engineering consulting firm specializing in water resources, river management, and disaster prevention, with international operations. Direct competitor particularly in the water management infrastructure and disaster prevention segments where EJEC has award-winning expertise.
• Tokyo Engineering Consultants Co., Ltd. Japanese engineering consultancy providing planning, design, and supervision for infrastructure projects. Mid-sized peer with comparable service portfolio across transportation, water, and disaster prevention consulting for government clients.
• Central Consultant Inc. Japanese engineering consultancy providing infrastructure planning and design services across transportation, water, urban, and environmental sectors. EJEC is mentioned as co-hosting a female engineers exchange event with Central Consultant, indicating peer-level market position.
• IDEA Consultants Inc. Japanese construction consulting firm with strong environmental and disaster prevention capabilities, providing infrastructure consulting services. Comparable in service portfolio especially for environmental impact assessment and disaster prevention consulting.

Market position

Strengths5 records

Weaknesses5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries5 records

Funding overview

Funding rounds

Investors

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

M&A

Investments2 records

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

Frequently asked questions about Eight-Japan Engineering Consultants