Online Video Ad Marketplace Raises $20 Million has raised $20 million in a round of funding, as money continues to flow to startups in the online video space. initially was behind a platform that let publishers manage their online video ad inventory, but the company expanded a year ago with the launch of a video ad exchange, where marketers can get inventory for lower prices and publishers can place their unsold inventory. Customers include Gannett (NYSE: GCI) and Publicis’ VivaKi. It says the marketplace has “surpassed our expectations for growth.”

The company’s new funding round was led by Bessemer Venture Partners. Existing backers Gemini Israel Funds, Redpoint Ventures and Spark Capital also participated. It brings’s total backing to $50 million. The startup had last raised funding in October, when it raised $4.5 million in a round. Some more details in the announcement here.