Collarity

About Collarity

Founded in 2005 by Levy Cohen (CEO) and Emil Ismalon (CTO), Collarity operated as a privately funded web services company headquartered in Palo Alto, California. The company, which is no longer active, secured a total of $19.6 million in funding over eight rounds, including investments from Western Technology Investment, Amicus Capital, and Proxima. Its largest funding round was a Series B in February 2008 for $6.09 million. The official launch occurred in November 2006, based on the concept that analyzing anonymous user interactions with web content could significantly enhance search relevance, offering an alternative to traditional link analysis.

Collarity provided an audience engagement and content monetization platform designed for web media publishers. The core of its business was to automatically serve relevant advertising and content recommendations to website visitors by segmenting them based on their anonymous on-site behavior. This was achieved through a technology centered on collaborative filtering, which leveraged implicit user data—such as articles searched for or clicked on—to build a hierarchy of information value. This process aimed to make specific information more discoverable for distinct audience segments, thereby increasing user engagement metrics like page views and optimizing revenue for publishers.

The business model was based on a revenue-sharing agreement with its publisher clients. Installation of Collarity's service was free for the publisher; the company would then take a share of the incremental revenue generated through the platform's implementation. This model incentivized Collarity to increase both traffic (page views) and the effective CPM through better ad and content targeting. The platform included several features for publishers, such as widgets for suggested stories and related videos, search functionalities, behavioral ad targeting, and an analytics portal to track communities, interests, and popular content. This allowed publishers to better understand their audience and monetize their media assets more effectively. While operational, Collarity was recognized as a notable innovator in the search and media technology space.