Colman Getty won the project in a competitive pitch. The agency will work with Canterbury City Council and architects Keith Williams Associates on the campaign.
Colman Getty has been tasked with establishing the Marlowe Theatre as a national and international centre, and promoting it as a multi-purpose venue supporting arts in the community.
Dotti Irving, chief executive of Colman Getty, called the project 'a brilliant example of a new approach to funding the arts'.
Celia Glynn-Williams, head of communications at Canterbury City Council, added: ‘The opening of this theatre is terrific news in a difficult time for arts funding across the country and will provide a huge boost to the arts and the communities in Kent and the South East.‘