Wikipedia
Certegy was a public corporation created in 2001 when Equifax spun off their payment services division. The corporation had two divisions of its own: check verification and credit cards. In September 2005, a merger with Fidelity Information Services, a subsidiary of Fidelity National Financial, was announced. The merger was completed in 2006. Although designed to be the surviving entity of the merger, Certegy's corporate name was changed as part of the merger agreement to Fidelity National Information Services, and the ticker symbol on the NYSE changed from CEY to FIS.1 Executive offices were relocated to Jacksonville, Florida, although manufacturing and operations remained in St. Petersburg, Florida.
In 2004, Certegy acquired Game Financial, a cash access provider operating in several casinos in the United States, including rights to their trade name, GameCash. In 2007, it was announced that Certegy Gaming (formed after the acquisition of Game Financial) would be sold to Global Cash Access for $25 million.
Since the merger with Fidelity Information Services, the division of Certegy responsible for merchant check guarantee has been renamed as FIS. The Certegy name and check division of Fidelity Information Services is currently under negotiations for sale.