6 Biggest Worldwide AD Agencies Leading Marketing

EWPP Ad Agency  WPP, i.e., Wire and Plastic Products, is one of the leading Ad agencies. It has a revenue around 14.85  billion british pounds. It also has over 3,000 offices in over 100 countries, and employees over 114,000 (approx.).  

Omnicom Media Group The company was formed as a merger between two advertising agencies, BBDO & DDB. It has a revenue of &14.6 9 billion. It has a portfolio of over 5,000 clients and has a presence in over 70 countries.

Publicis Groupe It has a revenue around  13.1 billion euros.  The ad agency has a wide portfolio of clients including Banania, Max Factor, Renault, Whirlpool, etc.  

InterPublic Group The company has a revenue of $10.88 billion. It is currently made up of IPG media brands, FCB, McCann Worldgroup, and Mullenlowe Group. 

Dentsu Group The company has over 11,000 clients in almost 145 counties. It has a revenue of $8.9 billion. In 1955, the company name was changed to Dentsu from Nihon Kokoku.

Ogilvy The group name was changed in 1964 to Ogilvy and Mather, after merging with New York  based ad agency. It has a revenue of over $5.9 billion.