THAILANDSICThailand Standard Industrial Classification

TSIC Activity

74902

Environmental consulting activities

ประกอบกิจการนำเข้า ส่งออก ผลิต ประกอบ จัดหา จำหน่าย ให้เช่า ให้เช่าซื้อ ติดตั้ง ซ่อมบำรุง และให้บริการเกี่ยวกับเครื่องมือ เครื่องจักร อุปกรณ์ ระบบเทคโนโลยี เครื่องมือวิทยาศาสตร์ เครื่องมือวัด เครื่องม

What this activity covers

Companies offer specialised consulting services in environmental management and related scientific fields.

  • Environmental management — Consulting on environmental issues and management strategies
  • Energy management — Consulting on energy conservation and renewable energy
  • Marine science consulting — Advisory services related to marine science
  • Geophysical consulting — Consulting services in geophysics
  • Pollution management — Services focused on air pollution management
  • Agricultural consulting — Consulting services related to agricultural practices

What companies here also do

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

  • Environmental technology — Development and consulting in environmental technologies
  • Design services — Providing design services related to environmental projects

Not included here

  • Management consulting activities, see subgroup 7020
  • Architectural and engineering consulting activities, see subgroup 7110

Industry at a glance

as of 23 ก.ค. 69

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

481
active companies operate here
฿1.9Bregistered capital, combined
฿3.2B
Sector revenue · 2025
+28% since 2023
฿91.1M
Net profit · 2025
193 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
12%of new registered capital is foreign-held
฿7.0M foreign฿52.9M Thai

Foreigners are actively investing in this activity.

New in 2026

38+5.6%

registrations, YTD

Registered capital

฿1.9B+6.0%

since year-end

Largest by revenue

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

  1. 1ERM-Siam Co., Ltd.฿511.7M
  2. 2S.P.S. Consulting Service Co., Ltd.฿158.3M
  3. 3Helix Environmental Management Co., Ltd.฿125.6M
  4. 4Lo-Carb Co., Ltd.฿122.5M
  5. 5TLT Consultants Co., Ltd.฿110.3M

Largest by registered capital

  1. 1IQ 66 Co., Ltd.Bangkok฿120.0M
  2. 2EEE Green Co., Ltd.Bangkok฿100.0M
  3. 3Advance Biotech Co., Ltd.Chon Buri฿100.0M

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 all

New DBD registrations under this activity since 2022, the period the registry snapshot covers, not the full historical register.

186
Registered
since 2022
175
Still active
11
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 56 in 20242026

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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