Los Angeles-based advertising infrastructure company The Rubicon Project bought another Seattle startup — Web security services provider SiteScout — that will form the nucleus of a new Rubicon office in Pioneer Square.
Rubicon, which has $42 million in funding and processes 45 billion online ads a month, made its first acquisition last September when it bought Seattle’s Others Online, an “audience optimization” venture.
The company is now planning to combine the three Others Online employees — who have been working from their homes and commuting to L.A. — with SiteScout’s office, creating a seven-person satellite office.
SiteScout Chief Executive Rob Lipschutz is becoming a Rubicon vice president and will manage the Seattle office, which plans to hire additional engineers over the next two quarters.
SiteScout was formed in 2006 and offers malware monitoring and removal tools to Web publishers.
The deal is being announced today. SiteScout’s sale price wasn’t disclosed.