The scheme’s other initial volunteers include Beattie Communications director Tim Blythe and Institute of Directors public affairs director David Marshall.
The scheme will offer a confidential relationship in which a set of personal development goals will be set and evaluated after 12 months.
Areas of mentoring might cover advice on setting up an agency or advice for a female PRO returning to work after maternity leave.
Brook said: ‘We don’t wish to duplicate the IPR and PRCA in training and development, but we did identify a gap where practitioners at all levels were facing pivotal moments in their careers and could benefit from mentoring.’
The guild said its prime target was agency account directors or in-house managers with two or three direct reports.