Mike Hoban, the Confused.com chief marketing officer, is overseeing the process. Hoban was appointed to the newly created role in May after joining from DirectGov.
Confused.com had worked with BMB for just nine months before they split last month.
During its time working on the account, BMB was responsible for creating a campaign called "jeans, guitar and tennis", which showed members of the public being haunted by objects that they could have bought if they’d saved money on their car insurance by visiting Confused.com.
PHD, which handles media for Confused.com, is thought to be unaffected by the review.
Confused.com is involved in a fight for users with rivals Comparethemarket.com and Gocompare.com, which have succeeded in creating brand awareness with their meerkat and opera singer characters.