Advertising giant WPP, the world’s largest advertising company by revenue, will spend about $5.5 billion this year buying ads from Google on behalf of its clients, MediaPost reports, citing comments by WPP CEO Martin Sorrell speaking Tuesday at the UBS conference in New York.

That figure is reportedly up from $4 billion a year ago, with Google ranking as the company’s largest media supplier.

“The holding company will spend about $1.75 billion with Facebook this year, making it the third-largest media supplier for the ad giant in 2016,” MediaPost adds. “Sandwiched in between at the number two spot collectively are the Murdoch-controlled properties including News Corp. and Twenty-First Century Fox.”