Mobile user acquisition outfit Fiksu has raised $10 million in its B funding round.

At least, that's according to TechCrunch, which says that previous investor Charles River Ventures was joined by Qualcomm Ventures in the round.

This brings the Boston-based company's total investment to-date to $17.8 million.

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Operating in the fast-growing mobile user acquisition space, Fiksu says it will use the money to extend its technology to better support real-time bidding. This provides the flexibility that large brands and publishers require to optimise their campaigns when launching new apps and games up the charts.

Fiksu claims it now hosts more than one billion app events - launches, registrations and in-app purchases etc - daily.

It's also looking to expand geographically, opening offices in the UK and Asia, and doubling its headcount from the current 100.

"Qualcomm is wonderfully strategic for us in the mobile space," vice president of business development Craig Palli told TechCrunch.

"They're so well tied to a variety of mobile handset manufacturers and that's the one area where Fiksu can really benefit from new relationships."

[source: TechCrunch]