ANM runs the women's website Femail.co.uk, the online city guide ThisisLondon.co.uk, the personal finance site This is Money, and the holiday planning property This is Travel.
The search for a new agency to handle advertising activity is being run by the Haystack Group. The incumbent on the account is Elliott Borra Perlmutter.
ANM is holding chemistry talks with five agencies with the aim of inviting three to pitch for the account.
The Haystack Group has been tasked to find a brand response agency to develop and reposition each property using press, posters, online and SMS activity to increase consumer visits to the sites.
"We are looking to build the brands while generating a response both off and online," Anne Boundford, the head of marketing at ANM, said.
"The four websites have quite distinct personalities and appeal to different customers, so the task will be to find an agency that can work across all brands and understand the variety of media."
The pitch follows a review earlier this year by ANM of its stable of digital properties and business strategy. In July, ANM sold its directory website, UK Plus, to BTLook-Smart, which runs its own search facilities, to focus on its core content-led portfolio.
In October, Elliott Borra Perlmutter created a radio and poster campaign on London Underground to relaunch ThisisLondon.co.uk.
ANM is owned by the Daily Mail and General Trust.