Mobile payments company BOKU has raised a cool $25 million in a Series C funding round led by DAG Ventures and existing investors Benchmark Capital, Index Ventures and Khosla Ventures.

“We looked at companies in this space and invested in BOKU because they are establishing themselves as the leader in the space with a remarkable team, broad merchant and carrier coverage, and a seamless system for processing transactions via mobile,” said Nick Pianim, managing director of DAG Ventures, in a statement.

BOKU will use the cash to expand the reach of its mobile payment service, Paymo.

The company has mobile payment relationships with more than 1,000 game and application developers, including almost all of the top applications for virtual goods and currencies purchased on Facebook. Paymo is enabled across 190 carriers worldwide in 58 countries and reaches a potential 1.8 billion customers.