Omnicom Media Group (OMG) is the media services division of Omnicom Group Inc. (NYSE: OMC), the leading global advertising, marketing and corporate communications company, providing services to over 5,000 clients in more than 100 countries. Omnicom Media Group includes the full service media networks Hearts &Science, OMD and PHD; the Annalect data and analytics platform; Resolution Performance Marketing; and a number of specialty media communications companies.