Goodby Silverstein & Partners
Goodby Silverstein & Partners (GSP) is an advertising agency based in San Francisco and New York City, USA. The agency was founded in 1983 as Goodby, Berlin & Silverstein by Jeff Goodby, Andy Berlin and Rich Silverstein. Andy Berlin left in 1992 and the agency was renamed. Goodby, Silverstein & Partners is now part of the Omnicom Group.