Following a list I made time ago, unsure if all still active - also note most do not support USA players, or simply support only a few countries, you need to geo-target correctly or you waste ads.
1)
www.partypartners.com +
www.partypartners.it/?lang=en ,
www.partypartners.fr/?lang=en (partypoker.com + partypoker.fr + partypoker.it + PartyCasino.com etc. -> not for USA! ok for rest DE,AT,CH,FR,IT,CA,GB,IE,AU,BE,NL,GR,NO,DK,SE...)
bewinners.com (bwin.com , poker.bwin.com )
note: party gaming + bwin merged, into:
https://www.bwinpartypartners.com/?lang=en
2) affiliates.888.com ,
www.uffiliates.com (
www.888.com )
3)
www.affutd.com (williamhill.com , eurogrand.com = GB,DE,etc see:
www.affutd.com/en/markets )
4)
www.pokerstarspartners.com (
www.pokerstars.com + pokerstars.eu , not for USA )
5) affiliates.betfair.com (betfair , no usa?)
6)
www.bettingpartners.com (bodog.com , bovada.lv)
7)
www.bet365affiliates.com (bet365.com , bet365.es , bet365.com.au)
8)
www.fortuneaffiliates.eu (vegaspalmscasino.com and others)
9) affiliates.interpartners.com (intercasino.com , intercasino.co.uk)
10)
www.referback.com (
www.gamingclubcasino.com ,
www.jackpotcitybingo.com )
11)
www.videoslots.com/affiliate/ (videoslots.com)
12)
www.brightshare.com (allslotscasino.com , alljackpotscasino.com )
13) adv.siacasino.com ( siacasino.com )
14)
www.iaffiliates.com ( casino.com : de,it,gb,es,au,ca )
15)
www.livecasinopartners.com ( LuckyLiveCasino.com , celticcasino.com)
16) affiliates.bookmaker.eu ( bookmaker.eu )
17)
www.everestaffiliates.com ( everestpoker.com , everestcasino.com)
18)
www.rewardsaffiliates.com ( many sites)
19)
www.affiliateedge.com (clubworldcasinos.com and others )
20)
www.affactive.com (
www.winpalace.im ,
www.casinotitan.im , )
21)
www.revenuegiants.com (
www.bingohall.ag ,
www.slotsvillage.ag )