Davis, who will report to Matt Atkinson, the EHS Brann Group chief executive, will be responsible for developing an integrated offering to clients. Davis will retain her role as the managing director of Euro RSCG 4D Digital - the group's digital arm.
Davis joined the then Euro RSCG Interaction in 1999 as its business development director. She moved there from FCB, where she was an account director on Amazon. Last year, she was responsible for merging EHS Brann Digital with Euro RSCG 4D Digital to create a single digital proposition for the group.
Atkinson said: "This is an important development for EHS Brann as we look to put digital at the heart of everything we do. Anne's digital expertise will help us keep our promises to clients, by offering a truly integrated service."
Davis added: "Digital is going through remarkable growth; the creative opportunities are endless. I'm looking forward to this new challenge as we look to integrate digital fully with our great work in the direct and data space."