THAILANDSICThailand Standard Industrial Classification

TSIC Activity

71103

Geophysical, geologic activities and related technical consultancy

ประกอบกิจการงานสำรวจข้อมูลที่ดินและสิ่งปลูกสร้าง จัดทำแผนที่ภาษีและทะเบียนทรัพย์สิน

Definition

Geophysical, geological and surveying consulting and surveying using seismic waves; activities to explore the size, shape and surface of the earth, such as land and boundary surveying activities, water surveying activities, underground area surveying activities, mapping and information about vacant areas, surveying.

Excluded from this code

  • Drilling related to mining, see activities 09100 and 09900.
  • Technical testing, see subgroup 7120.
  • Research and development activities related to engineering work, see activity 72109
  • Aerial photography View 74200 activities

Foreign ownership

Not on the Foreign Business Act restricted lists.

The Foreign Business Act B.E. 2542 (1999) restricts majority foreign ownership only for the activities named in its three annexed Lists. This activity is not among the mappings we hold, so a foreign investor can generally hold up to 100% of the equity, subject to any sector-specific licence and to minimum-capital rules (typically THB 2 million per restricted business, or THB 3 million where a Foreign Business Licence applies).

If an activity is restricted, the routes to foreign majority

  • BOI promotion — the Board of Investment can grant up to 100% foreign ownership for promoted activities, with tax and non-tax incentives.
  • Foreign Business Licence — permission from the Ministry of Commerce to operate a List 2 or List 3 activity as a foreign-majority company.
  • US Treaty of Amity — US nationals may hold majority ownership in most activities, treated as Thai nationals for FBA purposes.

This is general guidance, not legal advice, and mappings are auto-derived. The schedules of the Foreign Business Act B.E. 2542 are the authority; verify against the Act, or ask us to check your specific activity. See the full foreign ownership reference.

See the full foreign ownership reference for all three FBA lists.

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.

88
Registered
since 2022
83
Still active
5
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 27 in 20232026

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.

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