ZEDO is the world’s leading ad-server for web publishers and the third largest Internet ad-serving company in the world. With its focus on the New Internet and Behavioral Targeting, ZEDO holds claim to being the largest independent ad-serving company globally.

Founded in 1999 by Mr. Roy de Souza, ZEDO is headquartered in San Francisco & employs 130 people across its office in London, Mumbai, Goa and St. Petersburg (Russia). It is also fast expanding its engineering and R&D base in India.

ZEDO manages and tracks over 25 billion on-line ads per month for hundreds of websites and leads the industry in scalability, ease of use and features. ZEDO's platform allows advertisers and publishers to manage complex online advertising campaigns, while optimizing performance and revenue.

ZEDO’s Behavioral Targeting looks at the previous behavior of each user on the site to find which users have previously visited travel sites or sites about digital cameras etc. Industry experts claim that while it may not be accurate all the time, a user's past behavior will always give us better understanding of the user’s preference and future behavior. A person who has traveled once is likely to travel again - just in the same way that a person who is late to dinner often is likely be late for dinner again. Humans are creatures of habit - so analyzing their past behavior more accurately predicts their future behavior and the products they are interested in.

It is the leader of Third Generation Ad Serving™ technology in today’s online advertising and eCommerce. It is designed to help web sites, advertisers and networks lower their operating costs and increase their revenue. Its full feature-set is presented in an intuitive and highly acclaimed graphical user interface. ZEDO’s technology includes advanced time of day and broadband targeting, full analytics and conversion tracking (including tracking conversions from Overture and Google buys) that help companies generate more revenue from Internet advertising.

ZEDO provides solutions to increase one’s total revenue with high CPM (Cost per mile), Ad Network Optimization and an Ad server for the New Internet. ZEDO uses a unique proprietary architecture that is fast, scalable and is highly flexible in meeting customer needs.

Some of the world’s most popular Internet players such as Rockyou, PartyPoker, and Undertone Networks rely on ZEDO to serve and optimize their ads.

Privately held, ZEDO’s investors include Esther Dyson, Chairman, Edventure Holdings, Inc, Anthelon Capital, LP, Russian Hill Venture and Wilson Sonsini Investments.