Facebook has appointed Edelman to handle its PR account for advertising, platform or product, ending the previous relationship with Nelson Bostock.
Edelman will officially take over the account on 7 October but The Drum understands the agency has been preparing for the switch over for weeks.
The social networking site is continuing to use Blue Rubicon as its first point of contact for PR in the UK.
Neither Nelson Bostock or Edelman were available for comment at time of publication.
