Chronological order Union List (based on registered year) - 1997
- Hielberg Graphic Labour Union
- Contemfrate Workers Union
- Bangkok Eagle Wing Workers Union
- Havaii-Thai Export Labour Union
- Royal Orchid Workers Union
- Bangkok Post Supervisory Labour Union
- Siam Technical Handicraft Workers Union
- Changjia Seramics Workers Union
- Nitchin Workers Union
- Eastern Sugar Workers Union
- Thai Jacket Workers Union of Thailand
- Superfine Workers Union
- SCI Electric Labour Union
- Corrugated Tin Executive Labour Union
- Premwin Workers Union
- Furniture Producer Workers Union
- CK Workers Union of Thailand
- Pijuse Holding Workers Union of Thailand
- ETA Labour Union
- Ultra Sink Labour Union
- Jitra Engineering Workers Union
- VMC Machine Workers Union
- Thai Coating Samphan Workers Union
- Armstrong Labour Union of Thailand
- Toyota Body Service System Thailand Workers Union
- Nitpaint Fashion Workers Union
- Thai Elect Parts Workers Union
- Thai Ambica Supervisory Labour Union
- Thai Kao Workers Union
- Seneka Agriculture Workers Union
- Tang Sia Ping Workers Union
- Concept Manufacturing Workers Union
- Siam Steel Workers Union
- Lek Thai Bangpu Labour Union
- Sri Thai Superware Workers Union
- Chakkal Labour Union
- Tere Fibers Workers Union
- Thai Nisca Workers Union
- The State Enterprise Labour Union of Expressway and Rapid Transit Authority of Thailand (LU-ETA)
