Gottlieb, along with Jason Heller, CEO and co-founder of Mass Transit, will lead the newly constituted Horizon Interactive. The other Mass Transit co-founder, President Jason Burnham, will become media director of Horizon Interactive.
Mass Transit, which has done work for clients including Fodor's Travel Guides, Bloomingdale's, and Atkins Nutritionals, has provided analytics for Horizon for the last two years under a strategic partnership agreement, said Gottlieb. She added that the Mass Transit acquisition will give Horizon the ability to offer e-mail relationship services and expanded search marketing.
Horizon currently claims total billings of around $1 billion, of which 2 percent stems from Internet campaigns, according to its Web site. The company stated that after the merger with Mass Transit, total billings for the interactive unit will come to around $40 million.