THAILANDSICThailand Standard Industrial Classification

TSIC Activity

42909

Construction of other civil engineering projects, not elsewhere classified

ประกอบกิจการรับเหมาก่อสร้างอาคาร อาคารพาณิชย์ อาคารที่พักอาศัย สถานที่ทำการ ถนน สะพาน เขื่อน อุโมงค์ และงานก่อสร้างอย่างอื่นทุกชนิด รวมทั้งรับทำงานโยธาทุกประเภท

What this activity covers

This activity involves the construction of various civil engineering projects, including public utilities and outdoor facilities.

  • Public utilities construction — Building infrastructure for public services
  • Mining facilities construction — Constructing and repairing mines and related structures
  • Outdoor sports facilities — Building and repairing sports-related outdoor areas
  • Road construction — Developing and constructing roadways
  • Public utility infrastructure — Constructing infrastructure for utilities

What companies here also do

Seen in real company registrations under this code — beyond the official definition, so licensing may differ.

  • General engineering services — Providing engineering support for construction projects
  • Construction contracting — Managing contracts for various construction projects
  • Architectural design services — Offering design services for construction projects

Not included here

  • Construction of non-residential buildings, see activity 41002
  • Construction of outdoor swimming pool. View activities 43909
  • Land allocation without land development, see Village No. 681
  • Consulting activities for projects related to civil engineering, see activity 71102.

Foreign ownership

List 3: Restricted, FBL/BOI route availableinherited from 42

Construction, except construction of infrastructure providing basic public services in public utilities or transport that requires special apparatus, machinery, technology or expertise, and except other categories prescribed in ministerial regulations

The infrastructure carve-out is subject to a minimum foreign capital requirement, subject to capital thresholds, verify current figures.

FBA B.E. 2542, List 3 (10)Routes: Foreign Business Licence, BOI promotion, US Treaty of Amity

Auto-mapped, verify against the Act. These TSIC mappings are indicative, not legal advice; the schedules of the Foreign Business Act B.E. 2542 are the authority. See the full foreign ownership reference.

Industry at a glance

as of 23 ก.ค. 69

The whole registered industry under this activity, every registration year, from the DBD DataWarehouse.

1,793
active companies operate here
฿54.9Bregistered capital, combined
฿31.9B
Sector revenue · 2025
+38% since 2023
฿-259316283
Net profit · 2025
774 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
10%of new registered capital is foreign-held
฿24.8M foreign฿211.7M Thai

Foreigners are actively investing in this activity.

1 of the 5 largest companies here are foreign-owned Thailand subsidiaries.

New in 2026

132+214.3%

registrations, YTD

Registered capital

฿54.9B+1.1%

since year-end

Largest by registered capital

  1. 1Bliss Intelligence Public Company LimitedBangkok฿37.8B
  2. 2V.S.K. Joint Venture Co., Ltd.Bangkok฿1.1B
  3. 3BANG PAKONG INDUSTRIAL ESTATE CO., LTD.Bangkok฿1.0B

Source: Department of Business Development DataWarehouse. Financial figures are combined totals of companies that filed statements; revenue and profit shown for the latest three reporting years.

Companies registered since 2022

Browse all

New DBD registrations under this activity since 2022, the period the registry snapshot covers, not the full historical register.

354
Registered
since 2022
342
Still active
12
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 105 in 20262026

Largest active companies by registered capital

Source: Department of Business Development (DBD) new-registration records, 2022 to present. Counts cover companies first registered in that window, reflect the latest snapshot load, and may lag the live register.

Emerhub

Restricted activity? There is usually a route.

Emerhub structures foreign-owned companies around FBA restrictions: Foreign Business Licence applications, BOI promotion, and compliant shareholding structures. Talk through your case before you commit to one.

Talk to Emerhub Thailand