Agency Republic specializes in advertising for digital media, creating microsites, web sites, interactive content, viral clips, and video. Serving companies in the UK, the firm has counted mobile phone network operator O2 , alcoholic beverage giant Diageo , and Mercedes-Benz among its clients. The agency also has created marketing campaigns for Microsoft 's Xbox, Internet newsletters for Oxfam , and online news services for the BBC . Agency Republic is a part of the Diversified Agency Services division of advertising and media services giant Omnicom Group . It is part of a group called Republic Family that also includes sister agencies Weapon 7 (an interactive agency) and Code (a web developer).