TSIC Activity

52221

Operation of harbours and piers (except cargo handling)

ประกอบกิจการท่าเรือเอกชน รับสัมปทานการบริหาร จัดการ และดำเนินการท่าเรือ รวมถึงการขนถ่ายสินค้า การเทียบเรือ และการให้บริการเรือทุกประเภท

What this activity covers

Companies operate port facilities and provide related services, excluding cargo handling.

  • Port facility operation — Management of piers, docks, and port areas
  • Lighthouse operation — Management of lighthouses and navigation aids
  • Waterway maintenance — Operation and upkeep of canals and rivers
  • Lock and dam services — Management of locks, dams, and floodgates
  • Towing services — Towing vessels in canals using non-tugboat methods

What companies here also do

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

  • Boat maintenance — Repair and upkeep of boats
  • Dock rental — Leasing docking spaces and facilities
  • Port logistics — Providing logistical support related to port operations

Not included here

  • Towing and pushing services for the transportation of goods carried out at sea and along the coast. See activity 50122.
  • Transportation of goods by towing and pushing in inland waterways. See activity 50222.
  • Transportation of goods, see subgroup 5224
  • Travel operations such as docking. See activity 93299.

Industry at a glance

as of 23 ก.ค. 69

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

172
active companies operate here
฿101.6Bregistered capital, combined
฿52.4B
Sector revenue · 2025
+12% since 2023
฿14.8B
Net profit · 2025
87 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
0%of new registered capital is foreign-held
฿0 foreign฿2.2M Thai

Based on few new registrations this year — read as a rough signal only.

New in 2026

3+200.0%

registrations, YTD

Registered capital

฿101.6B+7.5%

since year-end

Largest by revenue

Latest filed-year revenue, not a multi-year total

  1. 1PTT LNG Co., Ltd.฿11.5B
  2. 2Hutchison Laem Chabang Terminal Co., Ltd.฿7.4B
  3. 3PE LNG CO., LTD.฿7.1B
  4. 4KLA-N Sea Port Co., Ltd.฿4.5B
  5. 5Laem Chabang International Terminal Co., Ltd.฿3.3B

Largest by registered capital

  1. 1PE LNG CO., LTD.Bangkok฿28.8B
  2. 2PTT LNG Co., Ltd.Bangkok฿27.7B
  3. 3PTT Tank Terminal Co., Ltd.Bangkok฿10.1B

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.

27
Registered
since 2022
26
Still active
1
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 9 in 20222026

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.

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