What is the biggest ad agency in the US

There are a lot of big ad agencies out there, but which one is the biggest? The answer might surprise you. The biggest ad agency in the US is actually Dentsu Aegis Network, which is headquartered in Tokyo. Dentsu Aegis Network has over 250 offices in 96 countries around the world and employs over 40,000 people. While Dentsu Aegis Network may be the biggest ad agency in the US, there are plenty of other large agencies out there. Some of the other biggest agencies include WPP, Omnicom, Publicis, and IPG.

WPP

The World's largest advertising agency is WPP. Headquartered in London and united states. The company employs over 190,000 people in over 3,000 offices in 112 countries. WPP's clients include some of the world's biggest companies, such as Coca-Cola, Ford, Microsoft, and Procter & Gamble.

Omnicom

Omnicom Group is an American multinational advertising and public relations company headquartered in New York City. One of the largest advertising holding companies in the world, it owns and operates several prominent agencies, including BBDO, DDB, TBWA\Chiat\Day, and PHD. Omnicom was founded in 1986 through the merger of three smaller agencies: Diversified Communications, Benson & Hedges, and Needham Harper Worldwide.

Publicis

Publicis is a French multinational advertising and public relations company, founded in 1926. It is one of the 'big three' agency networks, along with Omnicom and WPP. Its headquarters are in Paris and it has operations in over 104 countries. In 2018, Publicis was the world's third-largest advertising holding company by revenue (after WPP plc and Omnicom)

Publicis employs more than 76,000 people globally and is organized into four main business units:

-Publicis Communications: This includes advertising agencies Leo Burnett, Saatchi & Saatchi, BBH, communication agencies MSLGroup and Spark Foundry; digital transformation platform Publicis.Sapient; and strategic design consultancy Girvin.

-Publicis Media: Comscore ranks Publicis Media as the fourth-largest media agency network in the world. The group includes media buying and planning agencies Starcom Worldwide, ZenithOptimedia, Spark Foundry, Blue 449; performance marketing agency Performics; data science arm Data Alliance; creative tech specialists SharpTribe; and ecommerce solutions provider CommerceHub.

-Publicis Health: The largest healthcare communications network in the US according to COMvergence, with 14% market share. The group comprises medical education agency Ashfield Healthcare Communications; public relations firms Sudler& Hennessey and Hunter Healthcare Advertising; digital health specialists Digitas Health LifeBrands and Razorfish Health; patient recruitment specialist

Interpublic

Interpublic is the largest advertising agency in the United States. It is a holding company that consists of many different advertising agencies, including McCann Worldgroup, FCB, and Lowe. Together, these agencies generate over $8 billion in revenue each year. Interpublic also has a strong international presence, with offices in over 100 countries.

Dentsu

Dentsu is the largest advertising agency in Japan and the fifth largest in the world. It is headquartered in Tokyo and has over 4,000 employees. The company operates in over 100 countries and has a wide range of clients, including Honda, Toyota, Canon, and Sony. Dentsu is known for its innovative and effective advertising campaigns.