All 6 Major Agency Networks Invited to Pitch for GSK's Global Media Account

The company spent more than $1 billion in the U.S. last year

International pharmaceutical conglomerate GSK, or GlaxoSmithKline, has begun the process of reviewing its global media planning and buying business. Australian trade publication AdNews broke the news yesterday, and today a company representative confirmed the review to Adweek but did not provide additional information.