The Top Advertising Agencies in the World

As an expert in the advertising industry, I have seen many agencies come and go. However, there are a select few that have stood the test of time and continue to dominate the advertising world. In this article, I will be discussing the top 10 advertising agencies in the world, based on their longevity, influence, and success.


With over 100,000 employees, WPP Plc is the largest employer in the advertising industry. This global agency has a presence in major cities around the world and has been a leader in the industry for many years.

Ogilvy & Mather

Founded in 1850 by Edmund Mather, Ogilvy & Mather has a rich history in the advertising world.

In 1964, it merged with a New York City agency founded by David Ogilvy and has since become one of the best American advertising agencies.


Founded in 1970 by Jim Mullen in Boston, Mullen is known for its ability to adapt to new technologies and social networks. This agency has been recognized as one of the top 10 innovative marketing and advertising companies.


As a global network of advertising agencies with offices in 120 countries, McCann (formerly McCann Erickson) is a subsidiary of one of the four major holding companies in the industry. With a long history dating back to 1926, this agency is considered one of the oldest and largest marketing and advertising companies in the world.

Publicis Groupe

Owned by Maurice Levy, Publicis Groupe is a major player in the advertising industry. It has acquired a long list of digital specialists, including Saatchi & Saatchi and Leo Burnett, and is known for its work with some of the most important advertisers in the world.

Havas Worldwide

With a presence in 75 different countries, Havas Worldwide is currently the largest advertising agency and the fifth largest agency network in the world.

This agency works on all platforms, including broadcast, print, digital, and social media.


With offices in 81 countries and over 15,000 employees, BBDO is a major player in the advertising industry. This agency has a strong presence in Latin America and is known for its creative and effective campaigns.

Young and Rubicam

Founded in 1926 by John Orr Young, Young and Rubicam has become one of the most iconic advertising agencies in the world. Based in New York, this agency specializes in advertising, media, and digital media.

Dentsu Aegis Network

Based in London and owned by the Japanese media agency Dentsu, Dentsu Aegis Network is a multinational digital marketing and media company. While it may not be an independent agency, it has made a name for itself in the industry with its successful campaigns. These top 10 advertising agencies have proven themselves to be leaders in the industry.

They have adapted to new technologies and trends, worked with some of the biggest clients in the world, and continue to produce successful campaigns year after year. As an expert in the field, I can confidently say that these agencies are at the top of their game and will continue to shape the future of advertising.