THAILANDSICThailand Standard Industrial Classification

TSIC Activity

35101

Electric power generation and transmission

ประกอบกิจการผลิตและจำหน่าย นำเข้า-ส่งออก ติดตั้งโซล่าเซลล์ เครื่องมือ เครื่องใช้ อุปกรณ์เครื่องจักร ที่ใช้ในการ ผลิตพลังงานหมุนเวียน พลังงานแสงอาทิตย์ และพลังงานอื่นๆที่เกี่ยวข้องทุกชนิด แผงโซล่าเซลล์

What this activity covers

This activity involves generating and transmitting electricity from various sources to users and distribution centres.

  • Electricity Generation — Producing electricity from thermal, nuclear, hydroelectric, gas turbine, diesel, solar, and other renewable sources.
  • Electricity Transmission — Transmitting electricity from generation sources to distribution systems.
  • Facility Construction — Building facilities for electricity generation.
  • Renewable Energy Production — Generating electricity from renewable energy sources.
  • Solar Energy Systems — Producing and installing solar energy systems and solar cells.

What companies here also do

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

  • Electricity Storage — Storing electricity for later use.
  • Electricity Sales — Selling generated electricity to consumers.

Not included here

  • Electricity generation through waste incineration. See activity 38212.

Industry at a glance

as of 23 ก.ค. 69

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

4,224
active companies operate here
฿817.5Bregistered capital, combined
฿624.1B
Sector revenue · 2025
-14% since 2023
฿72.0B
Net profit · 2025
1,374 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
6%of new registered capital is foreign-held
฿338.9M foreign฿5.2B Thai

Largely domestic, with some foreign investment.

New in 2026

281+30.1%

registrations, YTD

Registered capital

฿817.5B+0.6%

since year-end

Largest by revenue

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

  1. 1Gulf SRC Co., Ltd.฿37.5B
  2. 2Gulf PD Co., Ltd.฿36.8B
  3. 3Glow Energy Public Company Limited฿30.2B
  4. 4Global Power Synergy Public Company Limited฿26.4B
  5. 5Hinkong Power Co., Ltd.฿25.7B

Largest by registered capital

  1. 1Global Power Synergy Public Company LimitedBangkok฿28.2B
  2. 2Banpu Next Co., Ltd.Bangkok฿18.8B
  3. 3BCPG Public Company LimitedBangkok฿16.5B

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.

1,455
Registered
since 2022
1,348
Still active
107
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2014peak 452 in 20222026

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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