The company, which owns Sportingbet and Centrebet, as well as Tom Waterhouse 's online bookmaking venture, said William Hill and Mr Sullivan. He was CEO of gambling firm Sportingbet, one of the largest online gambling operations in the world, from to Payne guided the company. The online gaming firm Sportingbet today accepted the resignation of its chairman, who was arrested in the United States last week. Sportingbet, owner of the ParadisePoker brand on the Boss poker network, has today also joined Sweden's Entraction network. It is listed on the London Stock Exchange and is a constituent. As chief executive of Sportingbet, Andy McIver is no stranger to dramas. Entain plc, formerly GVC Holdings, is an international sports betting and gambling company. Andrew McIver, Sportingbet chief executive, says: 'This deal combines all our poker players in one destination, maximising liquidity whilst. . Nigel Payne, the chief executive of internet gambling company Sportingbet, was probably not drawing on British irony when he said the U. He joined Ratners just after Gerald Ratner's infamous comments. Peter Bertilsson, CEO and President of Boss Media, said: "I believe that Sportingbet has a very large potential to attract customers to Boss. K.