The move comes as part of a wider roster review by Centura's parent company, RHM Foods. It is looking to add new agencies to its roster following the end of its relationships with TBWA\London, which held the Sharwood's account, and Saatchi & Saatchi, which held the Cadbury Cakes business, earlier this year.
The existing roster includes DDB London, which handles the Hovis account, and WCRS, which snatched the Mr Kipling business from Saatchis.
A Centura spokesman said: "The group-wide review will allow us to reinforce our relationship with existing agencies, as well as bringing in one or two new agencies. We don't know yet if one agency will get the Bisto and Sharwood's accounts or whether they will be put into separate agencies."
BBH was hired in 2003 to replace Saatchis on the £2 million Bisto account.
The review will not affect RHM's media agency, Universal McCann, which landed the entire £10 million business following a pitch in January last year.