With a market cap of $15.7 billion, New York-based Omnicom Group Inc. (OMC) is a global advertising, marketing, and corporate communications company that offers a comprehensive range of services, including media and advertising, precision marketing, public relations, healthcare, branding, retail commerce, and digital transformation. It operates across North and Latin America, EMEA, and the Asia Pacific, serving clients through extensive integrated marketing and communications solutions. Omnicom is expect ...