The recent laws when it comes to online betting in the Unites States only allows bookmakers licensed in Delaware, New Jersey, Pennsylvania and Nevada to actually operate in a legal way and these are the states where it’s possible to bet legally, even online.
New Jersey is the largest market in the US, regarding regulated online gambling. More than 12 legal and licensed poker rooms and casinos compete for in a market worth over USD 225 million a year.
Some data was released by the Division of Gaming Enforcement (DGE) in June 2019 regarding the revenues from the top 3 online casinos in the state, and they were as follows. Betfair/Golden Nugget accounted for USD 13.6 million, the Resorts AC gained USD 6.39 million as a revenue and Borgata/Party got a revenue of USD 5.66 million.