Top executive: Al DiGuido, CEO
Year founded: 2007
Headquarters: New York, NY
Number of offices: Nine
Web site: www.zetainteractive.com
Major disciplines/capabilities: Full-service digital marketing, including e-mail, Web development, social media, analytics
Key accounts: Time Inc., Sony Electronics, LiveNation, Century 21, Allergan, Martha Stewart Omnimedia, Intuit, US Airways.