Chronological order Union List (based on registered year) - 1991
- The State Railway Worker Union Of Thailand
- Kasikorn Bank Supervisory Labour Union
- Asia Garment Labour Union
- Siam Snack Labour Union
- Thai Elfe Workers Union
- STP Rubber Labour Union
- Internaitonal Rubber Parts Labour Union
- Thai Flash Light Workers Union of Thailand
- Garmetn and Textile Labour Union
- Mahachack Workers Union of Thailand
- Food Production Workers Union
- Panasonic Thailand Worker
- Thai Precision Workers Union
- Thai Are Garment Workers Union
- Medical Equipment Labour Union of Thailand
- Siam Vala Labour Union
- Computer and Electronic Parts Workers Union
- Pacific Textile Labour Union of Thailand
- Able Industries Labour Union
- Asan Service Labour Union
- A&N Foods Labour Union
- Thai Acrylic Fiber Workers Union
- KCE Workers Union
- Dragon Thai Workers Union
- Ovaltine Labour Union of Thailand
- Adidas Labour Union
- Toyota Valves Workers Union of Thailand
- Lek Phet Labour Union
- Oriental Sports Labour Union
- Calby Thailand Workers Union
- Far East Workers Union
- Consaft Manufacturing Workers Union
- Wine Munch Schneider Workers Union
- Kitch Thailand Workers Union
- Suntext Thailand Workers Union
- Wattakul Workers Union
- Bangkok Mass Transit Authority State
- Metropolitan Electricity Authority State Enterprise Employee's Association
- TOT CorporationPuplic Company Limited Workers Union
- Metropolitan Waterworks Authority State Enterprise Employee's Association
- The Labour Union of Port Authority of Thailand
- Electricity Generating Authority of Thailand
- Public Warehouse Organization Workers Union
- Dairy Framing Promotion Organization of Thailand
- Provincial Electricity Authority State Enterprise Employees' Association (PEASEA)
- Fish Marketimg State Enterprise Workers' Union
- Govermment Pharmaceutical Organization State Enterprise
- Bank For Agriculture and Agricultural a Cooperative state Enterprise Trade Union
- Government Saving Bank Labour Union
- National Housing Authority State Enterprise Employees
- Office of the Rubber Replanting Aid Funf Labour Union
- krungthai Bank State Enterprise Labour Union
- Thailand Tobacco Monopoly State Enterprise Workers Union
- MCOT Labour Union
- Provincial Waterworks Authority State Enterprise Employees' Association (PWASWA)
- The Land Transportation Labour Union
- Thai Plywood State Enterprise Workers Union
- Thailand Institute of Scientific and Technological Research Labour Union (TISTR)
- The Government Lottery Office Labour Union
- Thai Airway International Workers' Union
