The lingerie company, which is owned by Courtaulds Textiles, has called the pitch in a bid to formalise its agency relationship with just one shop.
Pretty Polly has traditionally commissioned one execution per year, and the winning agency will be briefed to continue this approach.
Although Exposure has been acting as Pretty Polly's main agency, other shops have been used to handle one-off briefs.
Miles Calcraft Briginshaw Duffy handled the account until 2004. It picked up the business in 2002 after a competitive pitch against a number of undisclosed agencies.
The account had lain dormant without an agency since 2001, when it parted company with TBWA.
At the time, Pretty Polly announced that it was abandoning advertising in order to concentrate on its marketing strategy.