GOVERNMENT SECTOR
- The Secretarist of The Cabinet
- Office of the National Economic and Social Development Board
- Royal Irrigation Department
- Department of Water Resouces
- Department of Groundwater Resources
- Department of Marine and Coastal Resources
- Land Development Department
- Agricultural Land Reform Office
- Royal Forest Department
- Department of Mineral Resouces
- Department of Primary Industries and Mines
- Office of Natural Resources and Environmental Policy and Planning
- Department of Environmental Quality Promotion
- Pollution Control Department
- Department of Disaster Prevention and Mitigation
- Bangkok Metropolitan Administration
- Department of Public Works and Town & Country Planning
- Designated Areas for Sustainable Tourism Administration (Public Organization)
- Department of Tourism
- Energy Policy and Planning Office
- Department of Alternative Energy Development and Efficiency
- Office of Transport and Traffic Policy and Planning
- Department of Highway
- Department of Rural Road
- Marine Department
- Department of Civil Aviation
STATE ENTERPRISE
- The Metropolitan Waterworks Authority
- The Provincial Waterworks Authority
- WasteWater Management Authority
- The Tourism Authority of Thailand
- The Industrial Estate Authority of Thailand
- Provincial Electricity Authority
- Port Authority of Thailand
- The State Railway of Thailand
- Airports of Thailand Public Company Limited
INTERNATIONAL ORGANIZATION
- World Bank
- Kreditanstalt für Wiederaufbau (KfW)
- Japan International Cooperation Agency (JICA)
- Asian Development Bank (ADB)
PRIVATE SECTOR
- PEA ENCOM International Co.,Ltd.
- PTT Green Energy (Thailand) Co.,Ltd.
- Eastern Water Resources Development and Management Public Co., Ltd.
- Sahaviriya Steel Industries Public Co., Ltd.
- C.P.LAND Public Co., Ltd.
- Central Pattana Public Co., Ltd.
- Siam Makro Public Co., Ltd.
- Ek-Chai Distribution System Co., Ltd.
- Charoen Pokphand Foods Public Co., Ltd.
- Ratchaburi Energy Co., Ltd.
- Electricity Generating Public Co.,Ltd.
- Carabao Tawandang Co.,Ltd.
The Pann Building, 3rd Floor