Stoke-on-Trent
bet365
The largest privately held operator, and the company that made in-play betting the centre of the sportsbook.
Reference last reviewed 27 October 2026
The group behind Unibet, acquired by the French state-controlled lottery operator in a landmark cross-sector deal.
Kindred was founded as Unibet in 1997 and renamed in 2016 as it became a multi-brand group. It was for years the most transparent operator in the industry on one specific measure: it published the share of its revenue coming from customers showing signs of harmful play, a disclosure no competitor of comparable size was willing to make.
The group was acquired by La Française des Jeux, the French state-controlled lottery and betting operator, in a transaction completed in 2024 and 2025. The deal mattered beyond the companies involved because it brought a commercial multi-market operator inside a former state monopoly, a combination the industry had discussed for years without seeing executed at scale.
Kindred also owned the game studio and aggregation business Relax Gaming, an example of an operator holding a supplier that sells to its own competitors.
The companies that hold the relationship with the player: they take the stake, hold the account, pay the winnings and carry the licence in each market they serve. Almost everything else in this directory exists to supply them.
Stoke-on-Trent
The largest privately held operator, and the company that made in-play betting the centre of the sportsbook.
Stockholm and Malta
A Nordic multi-brand operator with one of the longest corporate histories in the sector.
Boston
The American operator that converted a daily fantasy sports audience into one of the two leading sportsbooks.
London and the Isle of Man
A multi-brand operator group built by acquisition, and half-owner of BetMGM in the United States.
London and Gibraltar
The renamed 888 Holdings, which acquired William Hill's non-American business and now operates both brands.
Dublin
The largest operator group in the industry, assembled through mergers and built around FanDuel in the United States.