Wikipedia
MediaVest
Mediavest USA, founded in 1959, is an Advertising Agency relating to media selection services. It is based in New York City, with additional offices in Chicago, Los Angeles and San Francisco. The agency currently has over 750 employees.
MediaVest, a division of Starcom Mediavest Group (SMG), part of the VivaKi operating system, is a subsidiary of Publicis Groupe, a Paris-based holding company which is the world’s third largest communications group, the world’s second largest media counsel and media buying group, and active in digital and healthcare communications. MediaVest’s sister agencies include Starcom and Spark.