Omnicom is a strategic holding company headquartered in New York. It manages a portfolio of global market leaders in the disciplines of advertising, marketing services, specialty communications, interactive/digital media and media buying services. Omnicom Group companies cover more than 30 marketing communications disciplines across more than 200 strategic brand platforms, comprising three global advertising agency networks, leading national advertising agencies, a global network of more than 175 marketing services companies and a media group that includes two of the world's premier providers of media planning and buying services. Omnicom's commitment to excellence, quality and client satisfaction is a primary reason why its record of new business wins and longevity of major client relationships are the best in the business. Its agency brands are consistently acknowledged as having the best creative talent in the world in all disciplines. A leader in digital media, Omnicom Group has been ranked number one in digital share of revenue among all holding companies.