Chronological order Union List (based on registered year) - 1998
- Abano Printing Labour Union
- Songserm Transport Workers Union
- Siam Shorside Service Labour Union
- Namkok Workers Union
- Taxi Driver Employees Union of Thailand
- Lankrabue Crude Workers Union
- Krirk Seree Workers Union
- Wibulsilpa Workers Union
- Thai Central Steel Workers Union
- Wattanapanich Workers Union
- Siam Saxon Labour Union
- Honda Lock Thai Labour Union
- Thai Summit PKK Workers Union
- Pan Inter Navanakhon Workers Union
- Kamakassu Nawanakhon Workers Union
- Wisky Producer Labour Union
- Kawasumi Navanakhon Workers Union
- Diamond Burnish Workers Union of Thailand
- CES Navanakhon Workers Union
- Sinthanee Workers Union
- TOA Chemical Workers Union of Thailand
- Delta Electronic Thailand Workers Union
- FM Engineering Worker
- Central Paper Industry Workers Union
- TOA Davecame Workers Union of Thailand
- Enkei Thai Labour Union
- Pure Kemm Workers Union
- CEI Glass Workers Union
- Kingspan Workers Union
- Polyfoam Kanayama Appliance Workers Union
- Construction Workers Union of Thailand
- Automobile and Parts Isuzu Thailand Workers Union
- Dabu Bejus Workers Union of Thailand
- Transportation Drivers Thailand Workers Union
- Thai Workes Union
- Kobe Battery Workers Union
- Mayo Foods Workers Union of Thailand
- Ascot Labour Union
- Serve and Safe Workers Union
- Thai Aluminum Workers Union
- Prax Air Workers Union
- Thong Thai Industry Supervisory Labour Unoin
- TID Workers Union
- Sandy Workers Union
- Ratchada Steel Center Workers Union
- Ruam Namjai Thai Arrow Workers Union
- Diaglass Workers Union
- Thai Packaging and Affiliates Workers Union
- Leon Wig Maker Labour Union
- Inca Labour Union
- Bangkok China Paint Workers Union
- Supathanakor Paper Mill Workers Union
- Airport of Thailand Pubic Company Limied State Enterprise Workers' Union
