Siam FC

Thai League 2:
Air Force United | Army United | Ayutthaya United | BG Pathum United | JL Chiangmai United | Kasetsart | Khonkaen | Lanpang | MOF Customs United | Navy | Nongbua Pitchaya | Police Tero | Rayong | Samut Sakhon | Sisaket | Thai Honda | Ubon United | Udon Thani

Thai League 3:
Upper Region:Angthong / Ayutthaya / Bangkok / Chachoengsao / Chiangrai City / Kamphaengphet / Khonkaen United / Lamphun Warrior / Marines Eureka / Muangkan United / Phrae United / Sakaeo / Simork / Ubon Ratchathani
Lower Region:Banbueng / BTU United / Chamchuri United / KBU / Krabi / Nakhon Pathom United / Nakhon Si United / Nara United / North Bangkok University / Raj Pracha / Ranong United / Royal Thai Army / Surat Thani / Trang

Thai League 4:
Northern Region:Chiangrai United B / JL Chiangmai United B / Maejo United / Nakhon Mae Sot United / Nan / Phitsanulok FC 2015 / Singburi Bangrajun / Sukhothai B / Uttaradit / Wat Bot City
North Eastern Region:Buriram United B / Huai Thalaeng United / Kalasin / Khonkaen Mordindang / Mahasarakham / Mashare Chaiyaphum / Muang Loei United / Nongbua Pitchaya B / Sakon Nakhon / Sisaket United / Surin City / Surin Sugar Khong Chee Mool / Yasothon
Bangkok Metropolitan Region:Air Force United B / Air Force Robinson / Bangkok United B / Bankhunmae / Grakcu Sai-Mai United / Muangthong United B / Police Tero B / PTU Pathumthani / Rangsit United / RSU / Samut Prakan / Siam / Thonburi University
Eastern Region:Bankhai United / Chanthaburi / Kohkwang / Pattaya Discovery United / Phanthong / Pluak Daeng United / Royal Thai Fleet / Saimit Kabin United
Western Region:Assumption United / Chainat Hornbill B / Chainat United / Hua Hin City / IPE Samut Sakhon United / Look Esan / Ratchaburi Mitr Phol B / Samut Songkhram / Saraburi United
Southern Region:Cadenza Satun United / Hat Yai City / Jalor City / Muangkhon WU / Pattani / Phatthalung / Surat Thani City

Thailand Amateur League:
Upper Northern Region:Chiangmai City / Chiangmai Coaching / Chiangmai Dream / Chiangrai Dragon / Chiangrai Lan Na / Christ / Debsirin Chiangmai / JT / North Vachiralai Chiangmai United / Phayao / Piyamit / PRC Soccer Club / Pualand / San Kamphaeng / Singnuea Chiang Mai / Thung Hong United / Unseen Lamphun United / Wiangping Ranger
Lower Northern Region:Bung Sam Phan / Chaiyaphum Warrior / Lawoe United / Lom Sak United / Maesot City / Nakavee / Nakhon Sawan / Naresuan / Northern Tak United / Paknampho FC / PCBU / Phetchabun Patriots / Phitsanulok Sports Association / PL-Tech Phitsanulok / PPK Sumpeng Petchabun / PPS Petchabun City / PS Banmo / Phitsanulok United / PSRU / Sawankhalok United / See Kwae / Srinakhon Town / Sukhothai THSU / Tak City / URU
Upper North Eastern Region:Banchiang Peakone City / Banlaoporha / CAS / Chaiyaphum Chang Suek / Chaiyaphum Hill United / Chantarubaysa / Chum Phae / Debsirin Khonkaen / Jumpasri United / Kalasin City / Kalasin Sauropod / Khonkaen Sanbaital / Khonkaen Soccer Center United / Kranuan / Loei City / Mancha Arena / Muang Loei / Nadoon / Nam Phong United / PCTC / Roi Et FC 2018 / RMU / Som Pho / Tailoei United / Takhon City / Techno Sawang / Tiger Kids Mukdahan United / UD Nonghan / Udon-Banjun United
Lower North Eastern Region:Amarin YMA United / Amnat Charoen Town / Kadad City / Kantharalak United / Kruanapat Ubon / Loengnoktha / Nakhon Ratchasima Pro Kick United / NBN Kanthararom United / NMC / NRCMSS / NRRU / Pathumrat United / Phutthaisong / Phukhieo United / Piyaphaysart / Rasisalai United / Sang Saeng / Satuek FC / Sikhoraphum FC / Sisaket Sports Association of Sisaket Province / Sisaket Wittayalai / Soengsang United / Suranaree Army 2 / Surindra / Surin Sugar United / Suwannaphum United / Taud United / Tiyai Yaiyam United / Ubon Kids City / UBRU / X-star Khueannai United
Bangkok Region:Air Force / APD United / ATTS / Bangna United / Bannokkamin Foundation / BCC / BTU / Dome / Don Mueang Police Station / Egypt-Thai FC / Hippo / Immauel Sports Foundation / KMUTNB / KT Bull United / Ladkrabang United / Lumpini / Muangkrung / NKRAFA / Nongchok United / Ocel Media / Phimai United / Phoenix / PTS Pathumthani City / RCC / RTARF / Suanarneng / Thai Spirit / Thonburi SC / Tumronthai
Metropolitan Regions:Bang Khun Thian United / Bangkok City / Bangmod / Bissitar Ayodhya / Chenarreeorca / Dontan PCCM / Idin / Mahidol University Sport Science / Nongchok City / Nongkhae / PFC Thonburi Robot / Romklao United / Rose Asia / RPU / Samut Prakan United / Sirisak / Suankularb Wittayalai Rangsit United / Thonburi City
Upper Eastern Region:Angsila / Bang Kapi Leon Spirit Sport / Buakaw / HTC / Nakhon Nayok / Padriew United / Prachinburi City / Real Old Man / Sakultala / Sing Ubon / Suea Yai Lukporkun / Wangpailom SC
Lower Eastern Region:ABAC / ACDC / Ban Kaeng United / BUU / Cilie / Khaobaisri / Klongyai / Loma Pattaya United / Nikom Lower / Pattana / Pattaya City Sport Football Club / Plutalungwittaya / Traf Maptaphut
Upper Western Region:Ayodhya ARU City / Ayutthaya Banprak / BSB Pakkert City / Chainat City / Kanjanapat / KT United / Lakya Angthong United / Nongkhae Police / Pakchong SCK / Phathana Nikhom City / RMUTR / RU / Sakunmuangchaiphachi / Samural United / Samut Sakhon Warrior / Saraburi City / Saraburi Warrior / The Zero
Lower Western Region:Bangkhae United / Bangkhuntien / KU Kamphaengsaen / FC Khaokamphaeng / MBF Amphawa / Nakhonomnoi / Samut Sakhon City / Samut Songkhram Junior / Samut Songkhram United / Sing Rakhangthong Muangkan / Srisaman / STK Muangnon / SU / Thamuang / Thawiwatthana / Tungkok / West Town / Yingcharoen
Upper Southern Region:Andaman Bluemarin Phuket / BPN Bangsaphannoi United / Khunthalay / Khunthalay SRU / Nakhon Si Warrior / Patong City / Phangnga United / Plaiphraya City / Samui City / Srivichai / Surat Thani United
Lower Southern Region:Jantrangcee Sabayoi City / Nakhon Si City / Nathawi City / Narathiwat / Siritham / Songkhla / Songkhla Aslan TSU / Suea Tai United

Former clubs:
3M | ACS | AFWD | AICTA | Amnat United | Archa Knight | Ayutthaya Warrior | BAAC | Baan Ton Mai | Bangkapi | Bangkok Bank | Bangplub Don Army | Bangsai | Bannandkradon | BBCU | BCS | BRU Kumuang County | BSRU | Buriram Forest | Chaiyaphum United | Changphueak Chiang Mai | Chumphon | CMRU | CPB | Didosport United | Distar Bangkok | Freeland Unity | GHB | Hallelujah | Hat Yai | HTT Weset United | Huayyai Classic | Internazionale Pattaya | JW Police | Kantharalak | Kolok United | Kopoon Warrior | Korat | Krungkao Sports Association | Krungsri Warrior | Krung Thai Bank | Krung Thonburi | Kwanmuangwisetchaichan United | Legends | Lopburi | Mahasarakham City | Maptaphut | Midfield Soccer Hua Hin | Mit Ari Chiangrai | Muangchang United | Muangkan Warrior | Muangkhon United | Mukdahan Chaiyuenyong | Nakhon Phanom | Nakhon Sawan United | Nakhon Si Heritage | Narathiwat | Navanakhon | Nongbua City | Nonghan | Nong Khai | Nongnakham | Nongpho | Nonthaburi | Oon United | Pad Siam | Pak Chong City | Pakchong United | Pathum Thani United | Pattaya | Payak | Petchaiyapruek | Phangnga | Phetchabun | Phetchabun United | Phetburi | Phichit | Phitsanulok City | Phitsanulok Songkwae | Phuket | Playmaker United | PNS Langjan | Poilce Ladkrabang | Police United |Pondok Salatan Satun | Prachinburi | Prachinburi United | Prathuangthip Wittaya | Rajvithi | Ratchaburi Mitraphol RBAC | R-ma Soccer | Roi Et CF | Roob United | Salaeng | Sakon Nakhon | Sakon Nakhon City | Samut Prakan Football Association | Saraburi | Saraburi TLC | Saraburi TRU | Sing Nonthaburi | Siriroj | Sky-U-car | S.M.P. Pluakdaeng | Songkhla | Songkhla United | Sriracha City | Sriwittayapaknam | Suankularb Pathum-Aiin United | Surin Power | Sungaipadee | SWU United | TA Benchamarachuthit | Tak | Tan Diao | TG Rayong | Thai Framers Bank | Thai Summit Samutprakarn | Thammanusorn | Thaworn Farm | ThonBuri Inter | TMB | Tokio BlueArmy | TOT | Traill International school | TTM | Tuynuy Academy | Ubon United | Uthaithani Forest | U-Thong | Uttaradit Unity | Wat Suthiwararam Alumni | Western | Yala United

Related:
Provincial League | Thai FA Cup | Thai League Cup | Thailand Champions Cup