Chronological order Union List (based on registered year) - 1992
- The Union of the Employees of Yanmar
- Hin Lek Fai Labour Union of Thailand
- Tokyo-Mitsubishi Bank Workers Union
- Bangkok Union Workers Union
- Unocal Thailand Labour Union
- Kiat Charoen City Parts Workers Union
- Thai Construction Workers Union
- Polytech Industry Workers Union
- Anoma Labour Union
- Shangrila Hotel Workers Union
- S Supplies Labour Union
- Aluminum and Metal Producs Workers Union (Sriracha)
- Nakhon Phanom Seree Garment Workers Union
- Korat Saison Workers Union
- DDK Workers Union
- KME Garment Workers Union
- HR Silver Labour Union
- Thai Kuliko Workers Union
- AT&T Labour Union
- Toshiba Workers Union
- Pan International Electronic Workers Union
- Casio Navanakhon Workers Union
- Champion Workers Union
- Snaky Thai Workers Union
- Kochin Workers Union
- Orora Mecatonics Labour Union
- Central Metal Workers Union of Thailand
- Bodin Footware Workers Union
- TTA Workers Union
- Saeng Ngam Industrial Worker
- Cobunshi Workers Union
- Central Toys Workers Union
- Gold Mine Workers Union
- Wuili Labour Union
- Siam Sun Enterprise Labour Union of Thailand
- Labour Union of Thai Benkan
- VSK Workers Union
- Thai Star Diamond Workers Union
- DD All Wood Workers Union
- Bigfair Workers Union
- Srithep Thai Workers Union
- BPK Workers Union
- GK Thailand Workers Union
- Coop Foods Workers Union
- Kwo Yu Ha Workers Union
- CIA Workers Union
