Largest advertisers in the U.S. 2018

In 2018, the largest advertiser in the United States was the Comcast Corporation, with advertising investments reaching roughly 6.12 billion U.S. dollars. Other large advertisers on the list included AT&T, Amazon and American Express Co.

Advertising in the United States

The largest share of ad expenditures in the United States in 2018 was attributed to mobile media, followed by television. Among the different media, the mobile share is set to grow significantly; by roughly fourteen percent by 2022. By contrast, advertising expenditures on print and TV are predicted to decrease.

Comcast Corp.

Comcast Corporation is a global media and technology conglomerate, headquartered in Philadelphia, Pennsylvania. Being one of the largest telephone and media companies, Comcast had a total revenue of almost 95 billion U.S. dollars in 2018. That year, the company had a pay TV market share of just under 24 percent – a number that is, however, predicted to decrease in the coming years.

Largest advertisers in the United States in 2018

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Release date

June 2019


United States

Survey time period


Special properties

includes measured and unmeasured spending

Supplementary notes

The figures include measured-media advertising spending (source: Kantar Media) and unmeasured spending (estimated by Advertising Age). Measured media from WPP's Kantar Media based on spending in 19 media: consumer magazines, Sunday magazines, local magazines, business-to-business magazines, local newspapers, national newspapers, free-standing inserts, broadcast network TV, broadcast spot TV, national syndicated TV, network cable TV, network radio, national spot radio, local radio, Spanish-language media (magazines, newspapers, TV networks), outdoor and internet (display advertising; excludes paid search, video and other forms of internet advertising). Unmeasured spending figures are Ad Age DataCenter estimates including direct marketing, promotion, internet paid search, social media and other forms of spending not included in the 19 measured media. For more information, see the methodology.

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Statistics on "Advertising market in the U.S."

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