Chronological order Union List (based on registered year) - 2005
- Myer Aluminium Workers Union
- Canadoil Thailand Workers union
- Song Nsam Sarment Labour Union
- The Supervisor Autoalliance Thailand Worker's union
- Electric Generation Workers Union (Opperational)
- Siam City Bank Workers Union
- Kyokseki Labour union
- Amcor of Thailand Labour Union
- SGS (Thailand) Labour Union
- Thai Military Workers Union
- Fongson Printing Workers Union
- Hirosemsu (Thailand) Labour Union
- CCM Samphan Supervisory Labour Union
- Cardinal Health Workers Union
- May Flower Labour Union
- Worker of Samsung Labour Union
- Leader of Samsung Labour Union
- Cotgo Samphan Employees Union
- Siam Commercial Integrated and Affilates Workers Union
- Navaaporn Thailand Workers Union
- Electronic And Maccanic Labour Union
- Lufthansa Airlines Labour Union
- E&H Precision Labour Union
- Rangyer Beverage Workers Union
- Hong Kong and Shienghei Bank Supervisory Labour Union
- Jonsun Service Labour Union
- Summit Chukoku Seira Labour Union
- Linkwolrd Connection Labour Union
- Speed Internationnal Air Freight Union
- Janet Workers Union
- Takata Samphan Workers Union
- Siam Tricord Samphan Labour Union
- Osaka Labour Union
- Trim Leather Ware Workers Union
- MSP Sports Ware Labour Union
- T Krung Thai Workers Union of Thailand
- Hitachi Transport Labour Union
- Yoshi Tade Samphan Workers Union
- Thai Sin Workers Union
- Nippon Super Workers Union
- Thai KK Workers Union
- Gargment Producer Labour Union
- Met Oxide Workers Union
- PEC Thailand Workers Union
- Molten Asia Polymer Product Workers Union
- The Logistic Alliance Thailand Workers Union
- Saeng Thai Mult Dream Labour Union
- Daikin Amata Rakseree Workers Union
- Asakawa Thailand Labour Union
- TPI Workers Union
- Takao Eastern Workers Union
- Thai Autopressprart Workers Union
- BMW MenuThailand Workers Union
- Somboonsomic Workers Union
- Thai Iwakiglass Workers Union
- Asno Horie Labour Union
- Delpine Workers Union
- J Transport Workers Union
- Matalpha Thailand Workers Union
- SIG Labour Union
- Porcelain Painting Workers Union
- Apapim Labour Union
- Thai Sugar Terminal Workers Union
- Double Star Industry Workers Union
- Plastic Producer Workers Union of Thailand
- Jong Lert Lum Workers Union
- Orchid Bags Labour Union
- Amalion Supervisory Labour Union
- Anan Labour Union
- Amalion Labour Union
- Crown Bebdan Workers Union
- Cobra For Life Workers Union
- Makunibest Workers Union
- Pine Hurst Workers Union
- Thai Jia Powder Workers Union of Thailand
- Dragon Handbag Thailand Workers Union
- TR Engineering Workers Union
- B Trans Transport Chamical Workers Union
- Cheupao Metal Middle Management Workers Union
- Denca Workers Union
- Kate Thanakij Krua Narong Workers Union
- Kao Su Workers Union
- Plastic Products Workers Union of Thailand
- President Toy Workers Union
- Thai Imperial Labour Union
- Imperial Thai Supervisory Labour Union
- Eng Jung Huad Labour Union
- Telewis Workers Union
- Yoshi Tade Samphan Labour Union
- Oki Labour Union
- The AGC Thailand Workers' Union
