Affiliates of Siris Capital Group LLC and Evergreen Coast Capital Corp. wrapped up their purchase of U.K.-based travel technology company Travelport Worldwide Ltd.

The all-cash deal was worth approximately US$4.4 billion. The acquired company, which will continue to operate under its existing brand, will cease trading on the NYSE.

John Swainson, an executive partner at Siris, will lead Travelport's board.

Siris invests in North American companies in the data, telecommunications, technology and technology-enabled business services sectors.

Evergreen is a private equity affiliate of investment manager Elliott Management Corp.