Top 11 Advertising companies in United States
This curated ranking covers the 11 largest advertising companies in United States, ordered by estimated audience size from Rascasse's anonymized search-behavior signals. Signarama, Ogilvy & Mather and AdMob lead the list with a combined estimated audience of 459,199 people. Across all 11 entries the average audience size is 59,537, and the largest, Signarama, reaches around 190,523 people in United States. Audience size is the estimated number of unique people in United States who actively engage with each advertising company, derived from search demand signals. Rankings reflect search-behavior signals collected across United States and are refreshed weekly.
Ranking
| Rank | Name | Audience size | Country share | Subtype | Category |
|---|---|---|---|---|---|
| 1 |  Signarama |
190,523 | 78.3% | Advertising company | Business & Career |
| 2 |  Ogilvy & Mather |
137,920 | 20.4% | Advertising company | Business & Career |
| 3 |  AdMob |
130,756 | 11.2% | Advertising company | Business & Career |
| 4 |  Saatchi & Saatchi |
59,543 | 12.6% | Advertising company | Business & Career |
| 5 |  BBDO |
51,069 | 27.9% | Advertising company | Business & Career |
| 6 |  TBWA Worldwide |
32,848 | 76.7% | Advertising company | Business & Career |
| 7 |  Interpublic Group of Companies |
20,445 | 50.6% | Advertising company | Business & Career |
| 8 |  We Are Social |
14,809 | 21.5% | Advertising company | Business & Career |
| 9 |  BETC |
10,651 | 13.1% | Advertising company | Business & Career |
| 10 | Crispin Porter + Bogusky |
6,236 | 48.0% | Advertising company | Business & Career |
| 11 | DDB Worldwide |
108 | 0.3% | Advertising company | Business & Career |
Frequently asked questions
How is this Top 11 list compiled?
Rascasse aggregates anonymized search-behavior signals across United States and ranks each advertising company by its estimated audience size. Only entries with at least 5 measured entities are listed.
How often is the list updated?
The ranking is refreshed weekly from the latest search-behavior data and re-published as a static page.
What is the largest advertising company in United States?
Signarama currently leads with an estimated audience of 190,523 people in United States.
Methodology
Audience sizes are estimated from anonymized search-behavior signals across United States. Lists below 5 entries are not published. See methodology for full details.