10 Ad Agencies That Created Most Successful Brands

4. Interpublic Group Of Companies
Country: The United States
Major Clients: General Motors, Johnson & Johnson, Microsoft And Unilever
Revenue: $6.693 Billion

With about 44,800 employees across the world, IPG provides specialized consumer advertising, digital marketing, communications planning and media buying, public relations and specialty marketing.

In 1960, the company was first founded as marketing services management firm along with McCann-Erickson and McCann-Marschalk as its two subsidiaries.  From then, the company has grown to great heights.

5. Dentsu
Country: Japan
Clients: Kraft, Canon and Toyota
Revenue: $3.1 Billion

There might be many ad agencies in the world, but no company till date were able to take the place of Dentsu in Japan. It has more than 6000 clients across the world and simultaneously controls the Japanese market up to 30 percent.

Moreover, in the 20^th century the company was responsible for producing first newspaper advertisements as well as the first television commercials in Japan.

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