San Francisco’s Double Fusion, which offers a way to for advertisers to place advertisers in games, told VentureBeat this morning that it has raised $26 million in a financing round led by Norwest Venture Partners.

Existing investors Accel Partners and Jerusalem Venture Partners joined in the round, along with strategic investors Time Warner, Hearst Corporation, IDG Ventures Pacific and Sedona Capital (Japan), the company said.

The company was founded in 2004, and offers access to a network of online, PC, and console games and virtual worlds.