Rubicon Project Receives $9 Million Series C From Peacock Equity, Clearstone, and Mayfield

The Rubicon Project is a Los Angeles, California based advertising-optimization start-up company co-founded by Frank Addante, Craig Roah, Duc Chau, and Julie Mattern. The company has just raised a $9 million Series C round of funding, putting them at a total of $43 million. The Series C investors include Peacock Equity, Clearstone Venture Partners, and Mayfield Fund.

Rubicon Project has about 1,300 clients which include Gannett, Salon, Washington Post, and Newsweek. They optimize over 15 billion ads per month across 300 advertising networks. Rubicon monetizes ad space that has been unsold by ad networks.

Earlier this month Rubicon Project acquired Others Online. The Others Online CEO and founder Jordan Mitchell became the VP of Data Intelligence at Rubicon as a result of the acquisition.

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