Ogilvy & Mather is a global advertising and marketing communications agency. It was founded in 1948 and is headquartered in New York City. Ogilvy & Mather provides a wide range of services, including advertising, public relations, branding, and digital marketing. The agency has worked with a number of high-profile clients, including American Express, Coca-Cola, and IBM. Ogilvy & Mather is committed to creating innovative and effective marketing campaigns that help its clients achieve their business goals.