Provincially Union List - Ayuthaya
- ITE Labour Union
- Linfox Workers Union
- Wood Workers Union
- CIA Workers Union
- Sunflag Labour Union
- Sri Thai Workers Union
- Fashion Express Workers Union
- TDA Rubber Workers Union
- Indo Thai Labour Union
- Hitachi Labour Union
- Thai Sanko Workers Union
- Nakashima Workers Union
- Aircon Parts Labour Union of Thailand
- T-Time Workers Union
- Chakkal Labour Union
- Takao Workers Union
- Mockcum Bangpain Workers Union
- Apiko Hitech Labour Union
- Medcing and Medecal Supplies Labour Union
- BPB Thai Gipsum Workers Union
- Thai Herbs Labour Union
- Atec Computer Manufacturing Labour Union
- Nidek Workers Union
- Hitachi Compressure Labour Union
- AAL Labour Union of Thailand
- Leshin Industrial Workers Union of Thailand
- Techno Daiva Workers Union
- Songserm Sunden Workers Union
- Nitto Kenko Workers Union
- PIM Workers Union
- Computer Parts Workers Union
- Tesco Lotus Workers Union
- Echotainery Labour Union of Thailand
- Electric Equipment Workers Union
- Bangpa-in Paper Worerks Union
- Chihen Workers Union
- Linfox Transport Workers Union
- Yoshi Tade Samphan Labour Union
- Oki Labour Union
- CKL Workers Union
- Tere Fibers Workers Union
- Thai Nisca Workers Union
