Spearhead Integrated Marketing Communication has agreed to buy Smaato for $148m two years after the mobile advertising company raised series E funding from Singapore Press.

Singapore-based mobile advertising company Smaato, backed by media company Singapore Press Holdings, is set to be acquired by marketing company Spearhead Integrated Marketing Communication for $148m.

Spearhead will conduct the transaction through an unnamed M&A fund invested by an undisclosed, wholly-owned subsidiary. The deal is subject to approvals.

Founded in 2005, Smaato operates a real-time ad bidding exchange for mobile websites and apps. The company also offers a supply-side platform to manage ad inventory.

Smaato is planning to use the…