THAILANDSICThailand Standard Industrial Classification

TSIC Activity

69100

Legal activities

ประกอบกิจการบริการทางด้านกฎหมาย ทางบัญชี ทางวิศวกรรม ทางสถาปัตยกรรม รวมทั้งกิจการโฆษณา

What this activity covers

Companies in this sector provide legal representation and advice across various areas of law.

  • Legal representation — Acting as a lawyer in civil and criminal cases
  • Legal advice — Providing guidance on legal matters
  • Document preparation — Drafting legal documents like contracts and wills
  • Company establishment — Assisting with company formation and partnership agreements
  • Notary services — Performing actions of notaries and civil law registrars
  • Dispute resolution — Acting as arbitrators or mediators in disputes

What companies here also do

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

  • Accounting services — Providing financial and accounting advice
  • Consulting services — Offering management and administrative consulting
  • Engineering services — Providing engineering-related consulting
  • Academic consulting — Offering educational and legal research advice

Not included here

  • Activities related to the courts, see sub-category 8423.

Foreign ownership

List 3: Restricted, FBL/BOI route availableinherited from 691

Legal service business

Court representation is additionally restricted to Thai-licensed lawyers under the Lawyers Act.

FBA B.E. 2542, List 3 (7)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.

7,312
active companies operate here
฿14.7Bregistered capital, combined
฿37.8B
Sector revenue · 2025
-2% since 2023
฿3.0B
Net profit · 2025
3,259 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
5%of new registered capital is foreign-held
฿23.7M foreign฿413.9M Thai

Largely domestic, with some foreign investment.

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

New in 2026

353-36.9%

registrations, YTD

Registered capital

฿14.7B-8.0%

since year-end

Largest by registered capital

  1. 1Thanaburi Holding Co., Ltd.Bangkok฿300.0M
  2. 2Bangkok Eye Development Co., Ltd.Bangkok฿300.0M
  3. 3ATM Asset Management Co., Ltd.Songkhla฿217.8M

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.

2,508
Registered
since 2022
2,367
Still active
141
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2010peak 625 in 20252026

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