Source: eMarketer
Published: September 2018

U.S. Digital Ad Market

Circulated: January 16, 2019

Advertisers will spend $4.61 billion using Amazon’s platform this year, a 144.5% increase from last year*. That will give Amazon a 4.1% share of the US digital ad market — leapfrogging Microsoft and Oath to the №3 digital ad firm in the country this year.

Share of U.S. digital ad market, 2018

• Google — 37.1%

• Facebook — 20.6%

• Amazon — 4.1%

• Microsoft — 4.0%

• Oath — 3.3%

*Some growth due to accounting changes Amazon has made.