Italian-Thai Development Public Company

What Italian-Thai Development Public Company does

Italian-Thai Development Public Company Limited (ITD), founded on 15 August 1958 and listed on the Stock Exchange of Thailand since 1994, is Thailand's largest construction company by revenue and a top-tier civil and infrastructure contractor with a workforce exceeding 25,000 employees. Headquartered at Italthai Tower on New Petchburi Road in Bangkok, ITD delivers complex infrastructure across buildings, highways, expressways, railways, bridges, dams, tunnels, marine construction, industrial plants, rapid transit systems, and telecommunications infrastructure — winning projects primarily through competitive public tendering from Thai government ministries and state enterprises (MRTA, SRT, Department of Highways, Expressway Authority), supplemented by private-sector negotiation and selective Southeast Asian cross-border projects.

Its competitive position is anchored by an extensive in-house equipment base, including what the company describes as Thailand's largest marine construction equipment fleet (dredgers, crane barges, excavator barges, floating cranes, piling barges), elevated-structure launching systems, tower cranes, tunnel boring machines, and a 12-hectare Pratunam Pra-In Plant Maintenance Centre. Vertical integration is achieved through wholly-owned subsidiaries (Italthai Trevi for piling, Siam Steel Syndicate for rebar and wire rods, Siam Concrete & Brick for precast, Charong Thai Wire & Cable, Siam Pacific Electric Wire & Cable, ATO-Asia Turnouts, and TTCL), together with ISO 9001/14001-certified precast and steel fabrication facilities at Wihan Daeng (Saraburi) and Pathum Thani.

The business model is project-based and contract-driven: ITD operates as a B2B enterprise contractor with revenue tied to lump-sum, design-bid-build, and joint-venture contracts (notably ITD-NWR for the MRT Purple Line and ITD–China Railway No. 10 for the State Audit Building), with no published pricing and no consumer-facing distribution. Cumulative output exceeds 1,300 completed projects over more than 45 years, and ITD jointly accounts for roughly 56% of revenue among Thailand's listed construction companies. The company reached No. 174 on the 2024 Fortune Southeast Asia 500 with revenue of approximately US$2 billion, but is currently navigating a severe crisis: accumulated losses of approximately THB 13 billion from 2020 to 2024, the divestment of ITD Cementation India for US$351 million, market-cap collapse from THB 12 billion (2021) to THB 1 billion (January 2026), contract terminations and blacklisting following two fatal crane collapses in January 2026 that killed 34 people, indictment of CEO Premchai Karnasuta for professional negligence over the March 2025 State Audit Building collapse, resignation of Chairman Pathai Chakornbundit in December 2025, and a US$446 million debt restructuring seeking investor consent.

Name

Italian-Thai Development Public Company

Legal name

Italian-Thai Development Public Company Limited

Website

https://itd.co.th

Company type

Public

Founded year

1958

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Italian-Thai Development Public Company Limited is Thailand's largest civil and infrastructure construction contractor, delivering highways, rail, bridges, dams, marine works, and buildings for Thai government and state-enterprise clients, with 25,000+ employees and US$2 billion in 2024 revenue.

Ownership category

akta.pro rank

Product category

Civil Engineering and Infrastructure Construction

NAICS

Heavy and Civil Engineering Construction (237), Utility System Construction (2371), Industrial Building Construction (23621)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), General Bldg Contractors - Nonresidential Bldgs (1540), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Highway & Roadway Construction (Highways, Arterials, Streets) (IMAFAEAA)

Keywords

• Civil infrastructure construction
• Highway and bridge construction
• Marine construction services
• Mass transit construction
• Industrial plant construction

Headquarters

HQ city

Bang Kapi

HQ country

Thailand

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Civil and Infrastructure Construction Contracts: ITD generates revenue primarily through large-scale construction contracts for government and private sector clients. Project types include buildings, highways, expressways, railways, bridges, dams and tunnels, marine construction, industrial plants, pipelines, utility works, rapid transit systems, and telecommunications infrastructure. Revenue is project-based and one-time per contract, with joint ventures used to share risk on major projects.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Italian-Thai Development (ITD) is Thailand's largest civil and infrastructure construction contractor, providing full-service construction for buildings, highways, expressways, railways, bridges, dams, tunnels, marine works, industrial plants, pipelines, utility works, rapid transit systems, and telecommunications infrastructure. The company secures contracts through competitive public tendering from Thai government ministries and state enterprises, complemented by private sector and select international joint-venture projects across Southeast Asia. It also operates in-house supporting facilities for precast concrete production, steel fabrication, and heavy equipment maintenance.

Product overview

Italian-Thai Development Public Company is a civil and infrastructure construction conglomerate offering comprehensive construction services rather than a unified software product. The company operates through multiple service categories including building construction, highways/expressways/railways/bridges, marine construction, dams and tunnels, industrial plants, mining operations, and rapid transit systems. Supporting operations include precast concrete manufacturing, marine equipment fleet management, and equipment maintenance facilities. The company also developed ITD iNEX as an internal employee-facing mobile application. With over 45 years of experience and more than 1,300 completed projects, the company is one of Thailand's largest construction conglomerates, holding 56% market share among listed construction companies.

Differentiator

Problem solved

Functional benefit

Products and services

• Building Construction Services Construction of office buildings, residential complexes, high-rise buildings, hotels, and other commercial structures for government and private sector clients.
• Highways, Expressways, Railways and Bridges Construction Construction of highways, elevated expressways, railway systems, and bridge structures for government transportation authorities in Thailand and international markets.
• Marine Construction Services Port construction, pier construction, dredging, and coastal reclamation works using Thailand's largest marine construction equipment fleet, including dredgers, crane barges, excavator barges, floating cranes, piling barges, tug boats, and supporting craft.
• Dams and Tunnels Construction Construction of dams, tunnels, and water infrastructure projects, including deep-level tunnelling beneath the Chao Phraya River using tunnel boring machines.
• Industrial Plant Construction Construction of industrial plant facilities and refineries including Star Refinery, Thai Oil HDS, and Rayong Refinery projects, achieving millions of manhours with no lost-time accidents.
• Rapid Transit Systems Construction Construction of MRT, BTS, and other mass transit rail systems including underground and elevated civil works for urban mass transit authorities.
• Mining Operations Mining and coal excavation operations including the Mae Moh Mine and Hongsa Mine projects for power generation and resource extraction clients.

Quantifiable outcome

• Completed 1,300+ projects over 45+ years
• +3 more outcomes

Named customers6 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

Feature5 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Nawarat Patanakarn PlccoreStrategic or Co-development PartnerITD and Nawarat Patanakarn formed a joint venture to construct the 3.1-kilometre underground section of the MRT Purple Line beneath the Chao Phraya River. The joint venture is known as ITD-NWR MRT Joint Venture and is responsible for Contract 5 of the MRT Purple Line Tao Pun–Rat Burana section.
• China Railway No. 10 (Thailand) LtdcoreStrategic or Co-development PartnerITD formed a joint venture with China Railway No. 10 (CR10) for the State Audit Office 33-floor skyscraper project in Bangkok. The building collapsed during the March 2025 Myanmar earthquake, killing approximately 100 people. Thai authorities are investigating potential irregularities including corner-cutting and sub-standard steel.
• State Railway of Thailand (SRT)coreImplementation/ SI/ Consulting PartnerITD serves as the main contractor for sections of the Thai-Chinese high-speed railway project connecting Bangkok with Nong Khai at the Laos border. A fatal crane collapse occurred at the Nakhon Ratchasima site on January 14, 2026, killing 32 people. The project is part of China's Belt and Road Initiative.
• Asia Pacific Potash CorporationminorStrategic or Co-development PartnerRelated company involved in potash mining operations, one of several subsidiary and affiliated companies within the Italian-Thai Group operating in complementary sectors.
• Myandawei Industrial Estate Company LimitedminorOthersRelated company under the Italian-Thai Group operating an industrial estate in Myanmar (Dawei), representing ITD's regional expansion through related-party industrial development projects.
• Thai Moçambique Logística S.A. (TML)minorOthersRelated company under the Italian-Thai Group operating logistics operations in Mozambique, representing ITD's expansion into African markets through related-party investments.

Scale indicators10 records

Recent moves7 records

Expansion highlights4 records

Regional players

• Sunway Construction Group Berhad: Listed Malaysian contractor with integrated building and infrastructure capabilities spanning high-rise, hospitals, MRT, and renewable energy. Comparable scale and project-mix breadth to ITD, primarily competing in Malaysia and Singapore rather than Thailand.
• Hyundai Engineering & Construction: Korean major EPC and civil infrastructure contractor with global project footprint including SE Asia. Comparable in scale and technical scope (civil, building, industrial plant, power), and active in regional mega-projects that sometimes overlap ITD's pipeline.
• Gamuda Berhad: Malaysia's largest infrastructure group with deep experience in tunnelling (Klang Valley MRT), highways, and water treatment — directly comparable technical capabilities to ITD's TBM operations and civil infrastructure portfolio. Operates regionally in SE Asia rather than competing head-to-head in Thailand.
• PT Waskita Karya (Persero) Tbk: Indonesian state-owned construction company with broad infrastructure and building capabilities. Comparable regional scale to ITD and serves as a useful SE Asian SOE peer despite operating primarily in Indonesia rather than Thailand.

Broad incumbents

• China State Construction Engineering Corporation (CSCEC): World's largest construction company by revenue and a key Chinese state-owned contractor in overseas commercial buildings and infrastructure. Provides a benchmark for the scale a Chinese SOE-affiliated contractor can achieve in SE Asian markets.
• China Communications Construction Company (CCCC): China's largest infrastructure SOE and a global contractor active in ports, roads, bridges, and rail. Operates broadly in SE Asia through BRI projects that overlap with ITD's international expansion ambitions (Laos, Philippines, Myanmar).

Direct peers

• Ch. Karnchang Public Company Limited (CK): One of Thailand's 'big three' listed construction companies jointly holding 56% of listed-sector revenue with ITD. Operates across expressways, rail, power plants, and concession infrastructure with comparable scale and scope; the most direct domestic competitor and natural compare for ITD's market position and project pipeline.
• China Railway No. 10 Engineering Group: Major Chinese state-owned contractor that partnered with ITD on the State Audit Office skyscraper project in Bangkok. Active in SE Asian rail and building construction through BRI, with comparable technical scope on transport infrastructure and high-rise construction.
• Nawarat Patanakarn Public Company Limited (NWR): Mid-tier Thai contractor that partnered with ITD in the ITD-NWR JV for the 3.1km underground section of the MRT Purple Line beneath the Chao Phraya River. Direct JV history on complex tunnelling and similar revenue scale make it a natural partner/peer for sub-contracting ITD's pipeline during a blacklisting period.
• Sino-Thai Engineering and Construction (STECON): Third member of Thailand's 'big three' listed contractors, jointly cited as holding 56% of listed-sector revenue with ITD and Ch. Karnchang. Comparable scope across buildings, civil works, and MEP installation; one of the few Thai peers with the scale to absorb ITD's disrupted project pipeline.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/itdho

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries7 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 Italian-Thai Development Public Company