This alphabet soup of advertising begins here. As the flagship agency of media conglomerate Omnicom Group, BBDO Worldwide offers creative development services for some of the world's top brands using television, print, and other media. BBDO Worldwide also provides campaign planning and management services, as well as other brand promotion services. The firm's Atmosphere Proximity unit offers interactive marketing services in North America. BBDO's clients have included such heavy hitters as AT&T, FedEx, and PepsiCo (including the famous "Pepsi Generation" campaign). It operates through some 290 offices in about 80 countries, featuring outposts like Abbott Mead Vickers, Barefoot Proximity, and Proximity London.