TSIC Activity
Private security activities
ให้บริการรักษาความปลอดภัยในสถานที่ อาคารสำนักงาน โรงงาน ที่พักอาศัย ศูนย์การค้า และสถานประกอบการทุกประเภท
What this activity covers
Companies in this sector provide various security services, including protection, surveillance, and investigative activities.
- Security services — General protection and surveillance services
- Investigative services — Services related to questioning and investigations
- Personal bodyguard services — Protection services for individuals
- Armoured car services — Transport of valuables with security
- Polygraph services — Lie detection services
- Fingerprint examination services — Analysis of fingerprints for security purposes
What companies here also do
Seen in real company registrations under this code — beyond the official definition, so licensing may differ.
- Asset management — Management of security-related assets
- Security systems provision — Installation of security systems
Not included here
- Public order and safety activities, see subgroup 8423
Industry at a glance
as of 23 ก.ค. 69The whole registered industry under this activity, every registration year, from the DBD DataWarehouse.
net profitrevenue
Foreign investment
new registrations · 2026 YTDAlmost entirely Thai-held — little foreign capital enters here.
1 of the 5 largest companies here are foreign-owned Thailand subsidiaries.
New in 2026
registrations, YTD
Registered capital
since year-end
Largest by revenue
Latest filed-year revenue, not a multi-year total
Largest by registered capital
- 1Guardforce Cash Solutions (Thailand) Co., Ltd.intlBangkok฿270.0M
- 2SDS Group Healthcare Co., Ltd.Nonthaburi฿200.0M
- 3FRIENDSHIP 1979 CO., LTD.Nonthaburi฿200.0M
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 allNew DBD registrations under this activity since 2022, the period the registry snapshot covers, not the full historical register.
New registrations per year
Largest active companies by registered capital
- B.I.G. INTER SAFETY SECURITY CO., LTD.Private limited company · นครปฐม฿10.0M
- B.I.G. INTERGUARD SAFE GROUP CO., LTD.Registered ordinary partnership · ชลบุรี฿10.0M
- K SUPER SECURITY CO., LTD.Private limited company · สมุทรสาคร฿5.0M
- SECURITY GUARD J.J.P. CO., LTD.Private limited company · นนทบุรี฿5.0M
- C.B. CHECK CO., LTD.Private limited company · นนทบุรี฿5.0M
- BJC RAKSA KHWAM PLOD PAI OPS CO., LTD.Private limited company · กระบี่฿5.0M
- TN SECURITY GUARD CO., LTD.Private limited company · กรุงเทพมหานคร฿5.0M
- RANGER SECURITY CO., LTD.Private limited company · ภูเก็ต฿5.0M
- CLEANING AND SECURITY CONTROL CO., LTD.Private limited company · กรุงเทพมหานคร฿5.0M
- SECURITY GUARD KTP CARD CO., LTD.Private limited company · สมุทรปราการ฿5.0M
- SECURITY B.I.G. POWER GUARD GROUP CO., LTD.Registered ordinary partnership · ระยอง฿5.0M
- SECURITY YUKHARA CO., LTD.Registered ordinary partnership · ฉะเชิงเทรา฿5.0M
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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