Chronological order Union List (based on registered year) - 2004
- Compass Samphan Workers Union
- Apiko Amta Labour Union
- Product Land Transport Workers Union
- Thai Yashiro Workers Union
- Plastimer Samphan Workers Union
- Stanley Thailand Workers Union
- Islamic Bank Workers Union of Thailand
- Logistics Relation Workers Union(LRWU)
- Kitakawa (Thailand) Workers Union
- CL&A Supervisory Labour Union
- CL&A Workers Union
- High Technitsu (Thailand) Labour Union
- MT Picture Display Labour Union of Thailand
- Electric Generation Workers Union (Managerial)
- Thai Tabuchi Connection Labour Union
- TPI Group Workers Union
- TPI Group Executive Workers Union
- TPI Fire Fighter Workers Union
- Construction Workers Union
- Silver Ice Workers Union
- Interseat Connection Labour Union
- General Coating Workers Union
- Security Business Workers Union
- Thai Universal Commercial Bank of Chian Workers Union
- Sola Lens Workers Union
- Mon Transport Workers Union
- Gas Station Supervisory Labour Union
- Siam Metal Supervisory Labour Union
- Siam Metal Workers Union
- Unico Workers Union
- Industries Garment Relation Labour Union(IQRU)
- Siam VMC Workers Union
- Yuan San Thailand Labour Union
- Ion Made Labour Union
- Thai Summit Auto Parts Labour Union
- Bangkok Thai Urasia Workers Union
- Spinning and Weaving Workers Union
- Construction Enterprise Workers Union
- G K N connection Labour Union
- Ruskin Samphan Workers Union
- TM Foods Supervisory Labour Union
- TM Foods Workers Union
- The Fujitsugeneral Workers Union
- Suanluang Plastic Labour Union
- Democracy Workers Union
- Krung Thai Business Asset Transport Labour Union
- Thai Pattana Paper Workers Union
- Cosmo Consolidation Center Workers Union
- Thai Kodama Plastic Workers Union
- TTA Samphan Workers Union
- THAILAND AUTO PART AND METAL WORKER'S UNION
- Bangkok Alloy Enterprise Workers Union of Thailand
- Nagatan Thai Workers Union
- Nantawan Hotel Workers Union
- Chiangrai Land Workers Union
- Kanjana Drinking Water Workers Union
- Garment Enterprises Workers Union
- Thana Nin Ella Workers Union
- Sanyo Union of Thailand
- Thai Lazip Workers Union
- Euro Navanakhon Workers Union
- Yamada Workers Union
- Intermoda Labour Union
- Oishi Navanakhon Labour Union
- Tetrad Navanakhon Workers Union
- Gardenia Workers Union
- Baby Sitter Workers Union
- Payao Thanuthong Workers Union
- FORD & MAZDA Thailand Worker
- Yorosu Thailand Workers Union
- Mikasa Thailand Workers Union
- Bangkokestern Coilcenter Workers Union
- Aree Store Labour Union
- Thai Houghton Workers Union
- The Supervisor ITF Workers Union
- ITF Workers Union
- Wood Group Workers Union
- Saint-Gobain Sekurit Workers
- Rian Chai Ceramics Labour Union
- Pangthip Workers Union
- Mitraphap Samphan Hadyai Workers Union
- Songkhla Concrete Workers Union
- Goods Transportation of Songkla Workers Union
- Motocycle Workers Unio of Songkla
- Mobile Phone Songkhla Workers Union
- Auto Wheel Rubber Songkhla Workers Union
- Surat Thani Mine Labour Union
- Thai Industrial Gas Workers Union
- OA Labour Union
- Hino Thailand Labour Union
- Ito Thailand Labour Union
- Thai Radiator Workers Union
- Chiraichi Thailand Workers Union
- Thai DQ Supervisory Labour Union
- TM Manufacturing Workers Union
- Asoke Thailand Labour Union
- Thai Leather Workers Union
- Morita Spring Workers Union
- Posa Thailand Workers Union
- Toyota Transport of Thailand Workers Union
- SKB Creative Labour Union
- Denso Executive Labor Union of Thailand
- Exfore Labour Union
- Press Home Workers Union
- Koito Workers Union
- Schneider Labour Union
- Golden Tour Thailand Workers Union
- Asia Tour Thailand Labour Union
- Pacific Tour Workers Union of Thaialnd
- All Stars Tour Thailand Labour Union
- Olan Tour Thailand Labour Union
- Ana Tour Thailand Labour Union
- Taiwa Thailand Workers Union
- Sin Thai Labour Union
- ST Express Labour Union
- PCC Wood Workers Union
- Siam RI Labour Union
- Siam Container Labour Union
- SK Pattana Labour Union
- Combustible Material Transport Workers Union
- James Tour Thaialnd Workers Union
- Electronic Parts Supervisory Workers Union
- A&N Middle Management Workers Union
- Air Craft Container Employees Union
- PC Act Workers Union
- Chaimongkol Workers Union
- PIM Workers Union
- Computer Parts Workers Union
- Tesco Lotus Workers Union
- Echotainery Labour Union of Thailand
- Electric Equipment Workers Union
- Chihen Workers Union
- Linfox Transport Workers Union
- Mass Rapid Transit Authority of Thailand Labour Union
