Muang Thong United
Chanthaburi FC
Nakhon Ratchasima Mazda FC
BG Pathum United
Sukhothai
Suphanburi FC
Mahasarakham SBT FC
Lopburi City FC
Nakhon Si United FC
Chiangrai United
Chonburi Shark FC
Prachuap Khiri Khan
Rajpracha FC
Phrae United FC
Huasamrong Gateway
Buriram United
Khonkaen United
Kanchanaburi Power FC
Khonkaen FC
Bangkok
Bangkok United FC
Kasem Bundit University FC
Surin City FC 
Lamphun Warriors
Muang Trang United
Udon Thani
Kasetsart FC
Pattaya Discovery United FC
Uthai Thani Forest
Ratchaburi Mitr Phol FC
Nongbua Pitchaya FC
Rayong FC
Banbueng City
Port FC
Roi Et PB United
Royal Thai Fleet FC
Padriew City
TPF Uttaradit
Chachoengsao Hi-Tek
Lampang FC
Samut Sakhon City
Surin Sugar Khong Chee Mool
Royal Thai Navy FC
Nakhon Pathom FC
Thap Luang United
Vongchavalitkul University
Udon United
Muang Loei United
Ayutthaya United
VRN Muangnont
Kamphaengphet FC
Saimit Kabin United
APD United
Prime Bangkok FC
Warin Chamrap
Phitsanulok FC 2015
BEC Tero Sasana
Bankhai United
Air and Coastal Defense Command FC
Chainat Hornbill FC
Dome FC
Hua Hin Maraleina
Phachi City
Thonburi Forest
Futera United
Romklao United
Nara United
Toko Customs United
Muang Klaeng
UD Vessuwan
Phetchabun United
BFB Pattaya City
Ubonkids City
Samut Prakan City
Surat Thani City
Sisaket United