TSIC Activity
Manufacture of wiring devices
ประกอบกิจการผลิตกล่องสายไฟ
What this activity covers
This activity involves the manufacture of electrical wiring devices for circuit wiring, using various materials.
- Electrical wiring devices — Manufacture of devices for wiring circuits
- Busbars and conductors — Production of busbars and conductors (not switchgear type)
- Ground fault circuit interrupters — Manufacture of GFCI devices
- Lampholders — Production of lampholders for lighting
- Switches — Manufacture of various types of switches
- Sockets and receptacles — Production of sockets and receptacles for electrical connections
- Wiring boxes — Manufacture of junction boxes and switch boxes
What companies here also do
Seen in real company registrations under this code — beyond the official definition, so licensing may differ.
- Electrical cabinets — Manufacture of electrical cabinets and related equipment
- Cable trays — Production and sale of cable trays
- Electrical systems — Production of comprehensive electrical systems
- Electrical appliance parts — Manufacture of parts for electrical appliances
Not included here
- Manufacture of ceramic insulating cups, see subclass 2393.
- Manufacture of electrically conductive connectors for use in electronic circuits, such as connectors, sockets and switches, see subclass 2610.
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 YTDBased on few new registrations this year — read as a rough signal only.
2 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
- 1SCI Electric Public Company LimitedSamut Prakan฿750.0M
- 2EL Group (Thailand) Co., Ltd.intlChon Buri฿500.0M
- 3TIGERFLEX (THAILAND) CO., LTD.Rayong฿325.0M
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
- TIGERFLEX (THAILAND) CO., LTD.Private limited company · พระนครศรีอยุธยา฿225.0M
- ASIFA POWER SOLUTIONS CO., LTD.Private limited company · สมุทรสาคร฿100.0M
- DONG HUA CHAIN DRIVE (THAILAND) CO., LTD.Registered ordinary partnership · ระยอง฿5.0M
- RUI CHITA ELECTRICAL (THAILAND) CO., LTD.Registered ordinary partnership · ชลบุรี฿5.0M
- I GO ELECTRONICS CO., LTD.Private limited company · กรุงเทพมหานคร฿5.0M
- YINLAI TECHNOLOGY CO., LTD.Registered ordinary partnership · ชลบุรี฿5.0M
- S.SWITCHBOARD ENGINEERING (1992) CO., LTD.Private limited company · สงขลา฿4.0M
- บจ.โอเมก้า โปรดักส์ จำกัดPrivate limited company · ตาก฿4.0M
- DEAR ELECTRICAL APPLIANCE CO., LTD.Registered ordinary partnership · ระยอง฿3.0M
- JL FITTINGS (THAILAND) CO., LTD.Private limited company · กรุงเทพมหานคร฿2.1M
- A.C.E. INDUSTRY CO., LTD.Private limited company · กรุงเทพมหานคร฿2.0M
- WEI SHANG (THAILAND) CO., LTD.Private limited company · สมุทรปราการ฿2.0M
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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