Chronological order Union List (based on registered year) - 2009
- THAIZON GROUP LABOUR UNION
- Auto Industry Labour Union
- Drakon Connection Labour Union
- Summit Steering Connection Labour
- MICHELIN THAILAND WORKERS UNION
- GLOBAL FLEET SALES WORKERS
- SHOWA AUTOPARTS WORKER'S UNION THAILAND
- ATSUMITEC THAILAND WORKERS' UNION
- KOBATECH THAILAND WORKER'S UNION
- PMT Workers Union
- Off Road Accessories limited Union
- U-Shin Thailand worker's union
- Summit Fujikiko worker's union
- Yamasei Thai workers' union
- Lucut Thailand workers' union
- Thai DNT workers' union
- Matsui Eastern Thailand Workers' Union
- Gate Unita Worker's Union
- Mitsubishi Electric Thai Autopart Worker's Union
- Maxxis Thailand Worker's Union
- BNL Thailand Worker's Union
