| Caesars Palace Online Casino caesarspalaceonline.com | Caesars Entertainment | US state | 1 |
| Caesars Sportsbook sportsbook.caesars.com | Caesars Entertainment | US state | 1 |
| Caliente.mx caliente.mx | Grupo Caliente (Caliente / Caliplay) | Mexico SEGOB | 2 |
| Campeonbet campeonbet.ee | Campeon Interactive EE Limited | Estonia | 1 |
| Campobet campobet.se | Soft2Bet | Sweden | 2 |
| Capital Bet capitalbet.com.au | Not identified | Australia Liquor & Gaming NSW | 1 |
| Captain Spins closed captainspins.com | White Hat Gaming | UKGC, MGA | 1 |
| Captaincooks (KGC) captaincooks.casino | Casino Rewards | Kahnawake | 2 |
| Cardwin cardwin.sk | Aureola (Cardwin) | Slovakia | 1 |
| Carlton Bingo carltonbingo.com | run by Jumpman Gaming white label | UKGC, Alderney | 1 |
| Carousel BE closed carousel.be | Ardent Group (Gaming1) | Belgium | 1 |
| Casa de Apostas closed casadeapostas.bet.br | CDA Gaming Ltda | Brazil SPA (Ministry of Finance) | 1 |
| Casa Pariurilor casapariurilor.ro | Fortuna Entertainment Group | Romania | 1 |
| Cash Cage cashcage.com.au | Not identified | Australia Liquor & Gaming NSW | 1 |
| Cash Lounge cashlounge.com | Buscarar SRL | Anjouan | 1 |
| Cashimashi cashimashi.com | Starscream Limited | Kahnawake | 1 |
| Cashpoint cashpoint.dk | Merkur Group | Denmark, Germany | 1 |
| Cashpot cashpot.ro | Crowd Entertainment Ltd | Romania | 1 |
| Casigo closed casigo.com | White Hat Gaming | UKGC, MGA | 1 |
| Casikora casikora.vip | Buscarar SRL | Anjouan | 1 |
| Casiku casiku.com | run by White Hat Gaming white label | UKGC, MGA | 1 |
| Casilando casilando.com | run by White Hat Gaming white label | UKGC, MGA | 1 |
| Casillion casillion.com | Wild Blackfin Limited SRL | Anjouan | 1 |
| Casimba casimba.com | run by White Hat Gaming white label | UKGC, MGA | 1 |
| Casineo casineo.ch | Casinò Locarno SA | Switzerland | 1 |
| Casino Atlantic City casinoatlanticcity.com | Not identified | Peru MINCETUR | 1 |
| Casino Barcelona casinobarcelona.es | Cirsa | Spain | 1 |
| Casino Bello casino-bello.com | Hazy Ltd | Anjouan | 1 |
| Casino Casino casinocasino.com | L&L Europe | UKGC, Sweden | 1 |
| Casino Cruise closed casinocruise.com | Genesis Global | MGA, UKGC | 1 |
| Casino Days casinodays.com | Rhino Entertainment | Estonia | 1 |
| Casino Epic casinoepic.se | Paf (Ålands Penningautomatförening) | Sweden | 1 |
| Casino Estrella casinoestrella.com | Samaki Limited | Anjouan | 1 |
| Casino Extra casinoextra.com | Samaki Limited | Anjouan | 1 |
| Casino Fantastico casinofantastico.co.uk | Broadway Gaming Group | UKGC | 1 |
| Casino Friday casinofriday.com | Far Up Services Limited | Estonia | 1 |
| Casino Fun casinofun.ro | New Gambling Solutions | Romania | 1 |
| Casino Game casinogame.co.uk | run by Jumpman Gaming white label | UKGC, Alderney | 1 |
| Casino Gods closed casinogods.com | Genesis Global | MGA, UKGC | 1 |
| Casino Gran Madrid Online casinogranmadridonline.es | Grupo Casino Gran Madrid | Spain | 1 |
| Casino Gran Vía casinogranvia.es | Grupo Comar | Spain | 1 |
| Casino Grand Bay casinograndbay.com | TD Investments Ltd | Kahnawake | 1 |
| Casino Helsinki casinohelsinki.fi | Veikkaus Oy | Finland | 1 |
| Casino Heroes casinoheroes.com | Hero Gaming | Curaçao | 1 |
| Casino House casinohouse.dk | Casino House (SK Gaming ApS / A3 Group ApS) | Denmark | 1 |
| Casino Joy closed casinojoy.com | Genesis Global | MGA, UKGC | 1 |
| Casino Kartáč casino-kartac.cz | CASINO KARTÁČ Group | Czechia | 1 |
| Casino Kings casinokings.com | run by ProgressPlay white label | UKGC, MGA | 1 |
| Casino Marbella casinomarbella.es | Cirsa | Spain | 1 |
| Casino Moto casinomoto.dk | Soft2Bet | Denmark | 1 |
| Casino of Dreams casinoofdreams.uk | Broadway Gaming Group | UKGC | 1 |
| Casino Orca casinoorca.com | Wild Blackfin Limited SRL | Anjouan | 1 |
| Casino Palace casinopalace.com | run by ProgressPlay white label | UKGC, MGA | 1 |
| Casino Pause&Play casinopauseandplay.es | Grupo Vid (Pause&Play) | Spain | 1 |
| Casino Planet closed casinoplanet.com | Genesis Global | MGA, UKGC | 1 |
| Casino Portugal casinoportugal.pt | Cirsa | Portugal | 1 |
| Casino Rebuy Stars casinorebuystars.sk | Online Rebuy Stars | Slovakia | 1 |
| Casino Rocket casinorocket.com | Metlait SRL | Anjouan | 1 |
| Casino Royale casinoroyale.ro | NetBet (NetBet Enterprises Ltd) | Romania, Greece, UKGC | 1 |
| Casino Sieger casinosieger.com | Condor Gaming Group | UKGC, MGA | 1 |
| Casino Time (Ontario) casinotime.ca | Casino Time | Canada | 1 |
| Casino-Magic BE casino-magic.be | Sofabo SA | Belgium | 1 |
| Casino.ua casino.ua | Kazyno.UA | Ukraine | 1 |
| Casino1 casino1.be | Ardent Group (Gaming1) | Belgium | 1 |
| Casino333 BE casino333.be | Rocoluc (Casino Belgium) | Belgium | 1 |
| Casino777 / Bet777 casino777.es | Vision Gaming Holding Ltd | Spain | 1 |
| Casino777 Latvia casino777.lv | SIA NB (Casino777 Latvia) | Latvia | 1 |
| Casino777 NL casino777.nl | Ardent Group (Gaming1) | Netherlands, Belgium | 2 |
| Casino777.ch casino777.ch | Stadtcasino Baden group | Switzerland | 1 |
| Casinoaction (KGC) casinoaction.com | Casino Rewards | Kahnawake | 2 |
| Casinoandfriends casinoandfriends.com | SkillOnNet | UKGC, MGA, Sweden | 3 |
| Casinobelgium BE casinobelgium.be | Rocoluc (Casino Belgium) | Belgium | 1 |
| CasinoChan casinochan.com | Dama N.V. / Novatrix SRL network | Tobique, Anjouan | 1 |
| Casinoclassic (KGC) casinoclassic.casino | Casino Rewards | Kahnawake | 2 |
| Casinoelite BE casinoelite.be | The Flamingo SA (Casino Elite) | Belgium | 1 |
| CasinoEuro casinoeuro.com | Betsson AB | — | 1 |
| Casinoexperience BE casinoexperience.be | Family Game Center | Belgium | 1 |
| CasinoGo casinogo.dk | AB Trav och Galopp (ATG) | Denmark | 1 |
| Casinohuone casinohuone.com | Kindred Group plc | MGA | 1 |
| Casinoin casinoin.ee | Betmaster | Estonia | 1 |
| CasinoJax casinojax.com | Hollycorn N.V. | Curaçao | 1 |
| CasinoK casinok.com | Ryker | Curaçao | 1 |
| Casinoking BE casinoking.be | Gambling City NV (Casino King) | Belgium | 1 |
| Casinoly casinoly.com | Rabidi N.V. | Curaçao | 1 |
| CasinoMite casinomite.com | ProgressPlay | UKGC, MGA | 1 |
| Casinonic casinonic.com | Dama N.V. / Novatrix SRL network | Tobique, Anjouan | 1 |
| Casinosanremo (IT) online.casinosanremo.it | Casinò di Sanremo | Italy | 1 |
| CasinoSecret casinosecret.com | Casumo | — | 1 |
| CasinoStars casinostars.io | Wild Blackfin Limited SRL | Anjouan | 1 |
| Casinostuen casinostuen.dk | ComeOn Group | Denmark | 1 |
| CasinoStugan casinostugan.com | ComeOn Group | Sweden | 1 |
| Casinoveneziait (IT) casinoveneziaonline.it | Casinò di Venezia | Italy | 1 |
| Casongo casongo.dk | Veli Group | Denmark | 1 |
| Casongo casongo.ng | Not identified | Nigeria Lagos - LSLGA | 1 |
| Casoo casoo.com | Trink N.V. | Anjouan | 1 |
| Casoola closed casoola.com | Genesis Global | MGA, UKGC | 1 |
| Cassino closed cassino.bet.br | Ana Gaming Brasil S.A. | Brazil SPA (Ministry of Finance) | 1 |
| Casumo casumo.com | Casumo | UKGC | 2 |
| Casumo DE casumo.de | Rabbit Entertainment | Germany | 1 |
| Casushi casushi.com | Solaya Group Limited | UKGC | 1 |
| Caxino caxino.com | Rootz | MGA | 1 |
| CBEsportes closed cbesportes.bet.br | Sportvip Group International Apostas Ltda | Brazil SPA (Ministry of Finance) | 1 |
| Celebrino celebrino.com | Hitz Gaming OÜ | Estonia | 1 |
| Celsius Casino celsiuscasino.com | Celsius Holdings N.V. | Anjouan | 1 |
| CGG closed cgg.bet.br | 7MBR Ltda | Brazil SPA (Ministry of Finance) | 1 |
| Chalkwins chalkwins.com | L.C.S Limited | MGA | 1 |
| Champion Casino Ukraine championcasino.ua | Champion Casino UA | Ukraine | 1 |
| Champion Club championclub.ua | Champion Casino UA | Ukraine | 1 |
| ChampionBet championbet.ug | Not identified | Uganda | 1 |
| Chance chance.cz | Tipsport | Czechia | 2 |
| Chanz chanz.com | New Casinos Ltd (Chanz) | Sweden, Estonia | 1 |
| Chanz chanz.ee | Dreambox Games OÜ | Sweden, Estonia | 1 |
| Chasebet chasebet.com.au | Not identified | Australia Liquor & Gaming NSW | 1 |
| Cheeky Bingo closed cheekybingo.com | Entain plc | UKGC | 1 |
| Cherry Casino cherry.com | ComeOn Group | Sweden | 1 |
| CherryBet cherrybet.ro | Viva Games SRL | Romania | 1 |
| Cheza Cash chezacash.com | Not identified | Kenya | 1 |
| Chilli Spins chillispins.com | run by Jumpman Gaming white label | UKGC, Alderney | 1 |
| Chips.gg chips.gg | Notyarg Ltd | Anjouan | 1 |
| Chipz chipz.com | Rootz | MGA | 1 |
| Chumba Casino chumbacasino.com | VGW Holdings | — | 1 |
| CipherWins cipherwins.com | Famagousta B.V. | Curaçao | 1 |
| Circus Dice circus-dice.be | Ardent Group (Gaming1) | Belgium | 1 |
| Circus NL circus.nl | Ardent Group (Gaming1) | Netherlands | 3 |
| Circusbet FR circusbet.fr | Ardent Group (Gaming1) | France | 1 |
| City Bingo citybingo.com | Broadway Gaming Group | UKGC | 1 |
| Clemens Spillehal clemensspillehal.com | run by SkillOnNet white label | UKGC, MGA, Sweden | 2 |
| Cloudbet cloudbet.com | Cloudbet (Halcyon Super Holdings) | Curaçao | 1 |
| Club World Casinos clubworldcasinos.com | Apex Dynamics Ltd. (Club World Casinos) | Anjouan | 1 |
| ClubBet clubbet.au | Not identified | Australia VGCCC (Victoria) | 1 |
| Cobra Casino cobracasino.com | Dama N.V. / Novatrix SRL network | Tobique, Anjouan | 1 |
| Codere (IT) codere.it | Codere | Italy | 4 |
| Codere Argentina codere.bet.ar | Codere | — | 1 |
| CoinCasino coincasino.com | Igloo Ventures | — | 1 |
| CoinPoker coinpoker.com | Not identified | Anjouan | 1 |
| ComeOn comeon.com | ComeOn Group | Netherlands | 3 |
| Conquer Casino conquercasino.com | run by ProgressPlay white label | UKGC, MGA | 1 |
| Conti Cazino conticazino.ro | Get's Bet | Romania | 1 |
| Cool Casino coolcasino.ro | Wintoo Soft Technologies SRL | Romania | 1 |
| Coolbet coolbet.com | Coolbet | Estonia | 2 |
| Copybet copybet.com.cy | CopyBet | Cyprus | 1 |
| Coral coral.co.uk | Entain plc | UKGC | 1 |
| CorgiSlot corgislot.com | FGS Software Solutions SRL | Anjouan | 1 |
| Cosmic Slotz cosmicslotz.com | Buscarar SRL | Anjouan | 1 |
| Cosmic Spins cosmicspins.com | Grace Media | UKGC | 1 |
| Cosmobet cosmobet.ua | Cosmolot | Ukraine | 1 |
| Cosmolot cosmolot.ua | Cosmolot | Ukraine | 1 |
| Costa Bingo costabingo.com | Broadway Gaming Group | UKGC | 1 |
| Cozino cozino.com | run by Jumpman Gaming white label | UKGC, Alderney | 1 |
| Crazeplay (KGC) crazeplay.com | Starscream Limited | Kahnawake | 1 |
| Crazy Dice crazydice.be | Golden Vegas (Noordzee Electronics) | Belgium | 1 |
| Crazy King Casino crazykingcasino.com | run by Jumpman Gaming white label | UKGC, Alderney | 1 |
| Cristal Poker cristalpoker.com | Wild Blackfin Limited SRL | Anjouan | 1 |
| Crixcasino crixcasino.vip | Buscarar SRL | Anjouan | 1 |
| Crocoslots crocoslots.com | Metlait SRL | Anjouan | 1 |
| Crown Coins Casino crowncoinscasino.com | Sunflower | — | 1 |
| CrownBet crownbet.com.au | Crown Resorts Limited | Australia NT Racing and Wagering Commission | 1 |
| CrownSlots crownslots.com | Metlait SRL | Anjouan | 1 |
| Crypto Reels cryptoreels.com | Apex Dynamics Ltd. (Club World Casinos) | Anjouan | 1 |
| Cryptorino cryptorino.io | Star Bright Media | — | 1 |
| CryptoSpin cryptospin.io | Wild Blackfin Limited SRL | Anjouan | 1 |
| Crystal Slots crystalslots.com | Jumpman Gaming | UKGC, Alderney | 1 |
| Crystalbet crystalbet.com | Entain plc | — | 1 |
| Cybet / Betting OCY cybet.com.cy | Betathlon Ltd | Cyprus | 1 |