Sports betting is now a $150B+ global industry, and a handful of giants take most of it. Ranked by the latest full-year revenue figures, these are the companies behind the apps on your phone.
The Revenue Table
Figures reflect the most recent reported full-year group revenue (betting and gaming operations), converted to USD:
| # | Company | Revenue (est.) | Flagship Brands | HQ |
|---|---|---|---|---|
| 1 | Flutter Entertainment | $14.5B | FanDuel, Paddy Power, Betfair, Sky Bet | Ireland/US |
| 2 | Entain | $6.8B | BetMGM (50%), Ladbrokes, bwin, Coral | UK |
| 3 | DraftKings | $5.4B | DraftKings Sportsbook & Casino | US |
| 4 | bet365 | $4.7B | bet365 (private) | UK |
| 5 | Caesars Digital | $3.1B | Caesars Sportsbook | US |
| 6 | BetMGM | $2.6B | BetMGM (Entain/MGM JV) | US |
| 7 | Kindred Group | $1.6B | Unibet, 32Red | Malta |
| 8 | 888/evoke | $1.5B | 888sport, William Hill (online) | UK |
| 9 | Betsson AB | $1.2B | Betsson, NordicBet | Sweden |
| 10 | Super Group | $1.1B | Betway, Spin | UK |
What the Numbers Say
Flutter's FanDuel is the story of the decade: from daily fantasy startup to the largest US operator, powering Flutter past every legacy European giant. Roughly half of Flutter's revenue now comes from the United States — a market that didn't legally exist in 2017.
bet365 remains the private-company outlier: family-owned, no shareholders, and by most estimates the most profitable operator per employee in the industry. Its late, cautious US expansion is the counterweight to DraftKings' spend-for-share strategy.
The concentration is accelerating: the top four groups now take an estimated 70%+ of regulated US handle, and every mid-tier brand on this list has been in merger talks at some point in the last three years.
Frequently Asked Questions
What's the biggest sportsbook in the world?
By group revenue, Flutter Entertainment (FanDuel's parent). By single brand under one roof, bet365 remains the largest privately-held operator.
Which sportsbook is biggest in the US?
FanDuel leads US market share by gross gaming revenue, with DraftKings second and BetMGM/Caesars/ESPN BET contesting third.