The Christian Muslim Forum will use London-based Global Tolerance to handle all press and media work over the next 12 months.
Global Tolerance MD Simon Cohen said the brief was to raise the forum’s profile and position it as a commentator on faith issues.
Archbishop of Canterbury Dr Rowan Williams launched the charitable forum last January.
At the end of last year the foundation published a letter that criticised the attempt by some councils ‘to suppress Christmas’. It claimed that there seemed ‘to be a secularising agenda which fails to understand the concerns of religious communities’.