US mobile advertising and analytics outfit Apsalar has closed its Series B funding round.

It raised $9 million from DCM, with participation from Correlation Ventures and existing investors including Thomvest Ventures and DN Capital.

It previously raised $5 million in September 2011.

DCM has more than $2 billion under management and has previously invested in social messaging outfit Kakao, Chinese mobile developer Happy Elements, and MMOG developer Trion Worlds.

Apsalar will use the money to increase its head count across all departments, further develop its technology and aggressively expand its marketing and sales.

Sitting in the sweetspot

Apsalar combines its expertise in analytics and behavioural targeting - fuelled by data gathered from 800 million app users - with its centralised mobile demand-side advertising platform.

This combines over 70 ad networks and real-time bidding exchanges.

"There is a tangible need in the market right now for high-ROI mobile user acquisition, and we are excited to be able to fill that need," said Michael Oiknine, Apsalar's CEO and co-founder.

"Apsalar is unique in its ability to identify high value and highly engaged mobile users, and is the only company that combines real time mobile analytics with attribution and a mobile DSP with first party data," commented DCM partner Osuke Honda.