Advertising agency

An advertising agency or ad agency is a service business dedicated to creating, planning and handling advertising (and sometimes other forms of promotion) for their clients. An ad agency is independent from the client and provides a outside point of view to the effort of selling the client's products or services. An agency can also handle overall marketing and branding strategies and sales promotions for its clients.

Famous advertising agencies

• Universal McCann Interactive -- works with a number of leading clients - One of the UK's most admired and respected digital media specialists
• Crispin Porter + Bogusky --famous for Subservient Chicken, works with Burger King, EarthLink, Virgin Atlantic Airways, Mini
• Goodby, Silverstein & Partners -- famous for the "Got Milk?" campaign, among others
• Doyle Dane Bernbach -- created famous campaigns for Volkswagen (including the famous "Lemon" ad) and Avis Rental Cars ("We're number 2. We try harder.")
• N.W. Ayer & Son -- the first ad agency in the United States, coined "When it rains it pours" (Morton Salt), "A diamond is forever" (De Beers), "Reach out and touch someone" (AT&T), "Be all you can be" (United States Army), and others
• Ogilvy & Mather -- famous for the Rolls-Royce print ad with the headline "At 60 miles an hour the loudest noise in this new Rolls-Royce comes from the electric clock", among other ads
• Omnicom Group -- works with Anheuser-Busch, Visa, and PepsiCo.
• TBWAChiatDay -- works with Apple Computer (including the "Think Different" campaign) and adidas. Responsible for creating the fcuk brand and (in the UK) Wonderbra advertising.
• Wieden & Kennedy -- has worked with Nike, Inc. for over 10 years
• Saatchi and Saatchi -- most famous for working with the Conservative Party especially during the 1979 general election (Maurice and Charles Saatchi later left and set-up M&C Saatchi)
• JWT (formerly J. Walter. Thompson) -- works with Kelloggs, Unilever, Diageo.