Ambitious US firm Boku has brought one of its near rivals Mopay for an undisclosed fee, a deal which it claims makes it “the largest standalone provider of carrier billing-based mobile payment services in the world”.

Mopay’s customer base includes Valve, Gameloft and Wargaming, which will be added to Boku’s roster of Facebook, Sony, Spotify and Electronic Arts, among others.

The deal will also support standardisation in mobile payments for operators, merchants and consumers, said Boku.

“Together, Boku and Mopay serve some of the largest digital merchants in the world and we have a tremendous pipeline in the works,” said Jon Prideaux (pictured), Boku’s CEO.

For his part, Prideaux’s counterpart at Mopay — Ingo Lippert — said: “This is a merger from strength”.

However, over time, the companies will merge operations and the Mopay name will be replaced by Boku’s.