
Incumbents Publicis Groupe's Starcom MediaVest in Chicago and Grey Global Group's MediaCom in New York are also participating in the review. So far, it is unclear as to whether any other agencies have been approached about the business.
The review, which does not affect media buying, was announced earlier this month. P&G has said that only a select number of agencies are involved, and a decision is expected in June.
Greg Ross, P&G's director of North America Media, said recently:
"Given today's media fragmentation, we need to connect with our consumers and reach them at various touch points.
"Communication planning agencies will help integrate the many communication efforts working for us today. This will allow us to better understand and engage consumers with relevant information when and where they are most receptive," he said.
According to TNS Media Intelligence/CMR, P&G, which owns brands such as Pringles, Pampers and Olay, spent $2.5bn (£1.35bn) last year on media. However, the FMCG giant spent $4bn in the US alone on advertising and promotion.
The review follows the appointment of Bernhard Glock to the new role of global media and communications manager.
If you have an opinion on this or any other issue raised on Brand Republic, join the debate in the .