Jane Padgham is to join as an associate director in September, having spent the past year freelancing.
Padgham was economics correspondent at the Evening Standard between 1999 and 2006. More recently, she has been freelancing for The Sunday Times, The Daily Telegraph and The Independent.
Earlier this year Fishburn Hedges brought in the ex-business editor of The Independent on Sunday, Jason Nisse, in a similar role.
Nisse left The Independent on Sunday in 2006 to bec-ome the media relations director of Barclays Group.