It was announced last month that Peter Williams, its finance director for 28 years, is retiring to be replaced by Stephen Daintith. It is thought Daintith will lead a review of the function and scope of its comms and other corporate advisers.
Daily Mail and General Trust uses Tulchan Communications for financial PR and Finsbury for public affairs.
DMGT has struggled in recent times, warning two weeks ago that full-year operating profit will be down and job cuts are likely to follow.
DMGT was unavailable for comment.