DONG IL Engineering & Consultants Co., Ltd

What DONG IL Engineering & Consultants Co., Ltd does

DONG IL Engineering & Consultants Co., Ltd (동일기술공사) is a privately held Korean engineering consulting firm headquartered in Songpa-gu, Seoul, that provides comprehensive infrastructure design and construction management services. Founded in 1974 and celebrating its 50th anniversary in 2024, the firm operates across nine integrated business divisions covering civil engineering (roads, structures, ground/tunnel), urban development, water and water resources, construction management, railway, environmental impact assessment, traffic planning, overseas projects, and port and coastal engineering. The company serves primarily Korean government agencies, including the Ministry of Land, Infrastructure and Transport, Korea Railroad Corporation, and municipal governments, alongside international clients in Southeast Asia, South Asia, East Asia, and North Africa, with notable projects including Seoul Metro Line 9, Shinbundang Line, Daegu Metro Line 3, Gyeongju Bridge, Vietnam Hung Ha Bridge, and Ho Chi Minh City Metro design supervision.

The firm employs approximately 744 engineers and technical staff as of June 30, 2026, and generates revenue through project-based professional services fees determined by Korea's public procurement processes and government engineering service rate standards. Its go-to-market is direct engagement with public-sector clients rather than traditional marketing, supported by an industry presence via construction law publications and professional networks. Leadership is anchored by President Kim Myeong-sib (김명섭), an urban planning veteran recognized with the 2012 Industrial Merit Award (산업포장) for contributions to Korea's first-generation new town design (Bundang and Ilsan). The firm maintains a dedicated Overseas Division and a Technology Research Institute, and positions itself on 40+ years of accumulated technical expertise in bridge design.

The business model is fundamentally that of a domestic public-sector engineering services franchise: project-based fees, government procurement as the primary sales channel, and a diversified but vertically integrated service portfolio that allows the firm to compete on the full infrastructure lifecycle from feasibility through construction supervision. There is no disclosed private-sector customer base, no external investment, no proprietary technology products, and no AI/ML capabilities evidenced in the available data. The firm appears to operate as an independent, founder/management-led private corporation with no identified parent company, institutional backers, or M&A activity in its history.

Name

DONG IL Engineering & Consultants Co., Ltd

Legal name

DONG IL Engineering & Consultants Co., Ltd.

Website

https://dongileng.co.kr

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

11–50 employees

Short description

DONG IL Engineering & Consultants Co., Ltd (동일기술공사) is a privately held Korean engineering consulting firm, founded 1974, with ~744 staff across nine divisions providing infrastructure design and construction management services primarily to Korean government agencies and select international public-sector clients.

Ownership category

akta.pro rank

Product category

Civil Engineering Consulting Services

NAICS

Engineering Services (54133), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

Keywords

• Civil engineering consulting
• Infrastructure design services
• Construction project management
• Transportation engineering design
• Water resources engineering

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Design Services: Project-based consulting fees for design services across civil engineering, water resources, urban planning, railway, and environmental sectors. Revenue generated through public infrastructure design contracts with government agencies.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

DONG IL Engineering & Consultants Co., Ltd. is a Korean engineering consulting firm that provides comprehensive engineering design and construction management services across nine business divisions: Civil Engineering (roads, bridges, tunnels), Urban Development, Water Business, Construction Management, Railway, Environmental, Traffic Planning, Overseas, and Port/Coastal. It serves primarily Korean government agencies, public institutions, and local governments through public procurement, with selected international projects in Southeast Asia, South Asia, North Africa, and East Asia.

Product overview

DONG IL Engineering & Consultants Co., Ltd is a comprehensive civil engineering and consulting firm with a portfolio organized into nine core business divisions: Civil Engineering (covering roads, structures, and ground/tunnel), Urban Development (city planning and landscape), Water Business (water supply, sewage, and water resources), Construction Management, Railway, Environmental, Traffic Planning, Overseas, and Port/Coastal divisions. The company provides integrated engineering services from planning and design through construction management, serving both domestic infrastructure projects and international development.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Engineering Division (토목사업부문) Comprehensive civil engineering services covering road design, structural engineering, and ground/tunnel engineering for highways, national roads, and underground structures. Designed for Korean government agencies and public institutions executing national infrastructure projects.
• Road Design (도로설계) Expressway and national road design services including T/K and alternative design, private investment projects, and new road development utilizing design automation programs. Targeted at government road authorities and public infrastructure investors.
• Structural Engineering (구조설계) Bridge design services including long-span sea and land bridges, underground structures, and special bridge types for railways and subways. Served public sector clients with major national bridge projects.
• Ground and Tunnel Engineering (지반터널) Tunnel design, soft ground improvement, slope stability analysis, structure foundation design, underground excavation structures, and plant civil foundation design. Targeted at public infrastructure and industrial project owners.
• Urban Development Division (도시사업부문) City and urban planning including new city development, residential land development, industrial complex development, district unit planning, and overseas urban development projects. Designed for government planning agencies and municipal authorities.
• City and Complex Development (도시/단지) New town and site development including residential land development, public housing site development, industrial complex development, and urban development projects. Targeted at municipal and central government planning agencies.
• Landscape and Leisure (조경레저) Landscape architecture and leisure facility planning including parks, resorts, theme parks, golf courses, ski resorts, and environmental restoration projects. Designed for municipal and tourism-related public clients.
• Water Business Division (물사업부문) Water and water resources engineering including water supply, sewage, wastewater treatment, and water resource development. Targeted at water authorities, municipalities, and public infrastructure agencies.
• Water and Sewerage (상하수도) Water supply and sewage system design including water purification plants, sewage treatment facilities, and construction management for water infrastructure. Designed for water authorities and municipal public works clients.
• Water Resources (수자원) Water resource development and flood control including river master planning, small stream improvement, flood damage reduction, and agricultural water infrastructure. Targeted at national and provincial water management authorities.
• Construction Management Division (건설사업관리부문) Construction project management services for domestic and international large-scale construction projects. Targeted at public project owners, state-owned enterprises, and overseas partners.
• Railway Business Division (철도사업부문) Railway engineering services including high-speed rail, conventional rail, light rail transit, and metro system design and construction management. Targeted at Korea Railroad Corporation and metro project authorities.
• Environmental Business Division (환경사업부문) Environmental impact assessment and environmental engineering services based on accumulated experience and specialized technical research. Targeted at ministries, regulators, and public infrastructure project owners.
• Traffic Planning Division (교통계획부문) Transportation planning and traffic engineering including traffic surveys, transportation system planning, and traffic impact analysis. Designed for municipal, regional, and national transportation authorities.
• Overseas Division (해외부문) International engineering projects including overseas road design, urban development in developing countries, and international construction management. Targeted at international development agencies, foreign governments, and overseas project partners.
• Port and Coastal Division (항만 및 해안부문) Port and coastal engineering including port design, coastal structure design, and port construction project management. Targeted at the Ministry of Land, Infrastructure and Transport and port authorities.

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators2 records

Recent moves5 records

Expansion highlights3 records

Direct peers

• Hanyang Engineering Co., Ltd. Korean engineering consulting firm with similar capabilities in civil infrastructure, urban development, and construction supervision for public-sector clients.
• Seoyoung Engineering Co., Ltd. Mid-sized Korean engineering consultancy providing civil, structural, water, and environmental design services to government agencies — directly overlapping with DONG IL's nine-division portfolio.
• Pyunghwa Engineering Consultants Co., Ltd. Korean engineering consulting firm providing design and supervision services for roads, bridges, water, and urban infrastructure to Korean public-sector clients.
• Chung-Ang Engineering Co., Ltd. Korean engineering consultancy active in civil, structural, geotechnical, and environmental design for government infrastructure projects, with comparable project types and customer base.
• Dohwa Engineering Co., Ltd. One of Korea's largest engineering consulting firms providing civil, structural, urban, water, and environmental design services to government and public-sector clients. Directly comparable in service mix, Korean public-sector focus, and project types.
• Yooshin Engineering Corporation: Korean engineering design and consulting firm active in civil, structural, transportation, and urban infrastructure projects for government clients, with comparable service breadth to DONG IL.
• Kunhwa Engineering & Consulting Co., Ltd. Korean engineering consultancy with overlapping capabilities in roads, bridges, urban planning, water resources, and construction management, serving Korean public institutions and increasingly international clients.

Broad incumbents

• Hyundai Engineering Co., Ltd. Large Korean EPC firm active across civil infrastructure, industrial, and energy projects; overlaps with DONG IL in public infrastructure but competes via integrated execution rather than consulting.
• Samsung Engineering Co., Ltd. Major Korean EPC contractor with much larger scale that participates in the same Korean infrastructure and plant project ecosystem; competes indirectly via bundled design-build offerings rather than pure design services.
• Arup Group: Global engineering consultancy with significant presence in transport, bridges, water, and urban infrastructure — relevant comparable for DONG IL's overseas division and bridge design specialization.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/dongil

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 DONG IL Engineering & Consultants Co., Ltd